ÇOMÜ - Fizik Bölümü

30.01.2009 dan itibaren ziyaretçi sayısı

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Adı Soyadı :

Osman DEMİRCAN

Doğum Tarihi :

28.03.1949

Adres :

Çanakkale Onsekiz Mart Üniversitesi Fen-Edebiyat Fakültesi

Fizik Bölümü

Akademik Ünvanı :

Profesör

Araştırma Alanları :

1-	Değişen Yıldızların Fotoelektrik Işık Ölçümü	7-	Örten Çift Yıldızların Işık Eğrilerinin Analizi
2-	Büyük Kütleli Çift Yıldızlarda Asimetrik Rüzgar Yapısı	8-	Yıldızlarda Manyetik Etkinlik
3-	Yakın Çift Yıldızların Açısal Momentum Evrimi	9-	Soğuk Yıldızların Üst Atmosferleri
4-	Yakın Çift Yıldızlarda Eksen Dönmesi	10-	Fourier Analizi
5-	Kuyrukluyıldız Yörüngelerinin Hesaplanması	11-	Integral Transformlar
6-	Hipergeometrik Fonksiyonlar

Öğrenim Durumu :

Derece	Alan	Üniversite	Yıl
Lisans	Matematik-Astronomi	Ege Üniversitesi	1971
Yüksek Lisans	Astrofizik	Ege Üniversitesi	1973
	Astrofizik	Manchester Üniversitesi	1973-1976
Doktora	Astrofizik	Manchester Üniversitesi	1975-1978
Doktora üstü	Astrofizik	Manchester Üniversitesi	1978-1979

Akademik Ünvanlar :

Ünvan	Alındığı Yıl	Alınan Kurum
Kurucu ve Danışman	1979-1981	Garyounis Üniv.(Libya)
Öğretim Üyesi	1982-1988	ODTÜ, Fizik Bölümü
Öğretim Üyesi	1988	Ankara Üniv. Astronomi Bölümü
Doçent	1983	Ankara Üniv. Astronomi Bölümü
Profesör	1990	Ankara Üniv. Astronomi Bölümü

İdari Görevler :

Kurum	Tarih	Görev
A.Ü.F.F. Ast. ve Uzay. Bil. Böl.	1988-1993	Bölüm Başkan Yardımcısı
Türk Astronomi Derneği	1991-1996	Başkan Yardımcısı
A.Ü. Astronomi ve Uzay Bilimleri Araştırma ve Uygulama Merkezi	1994-1996	Müdür
Çanakkale Onsekiz Mart Üniversitesi	1999-2004	Rektör Yardımcısı
Çanakkale Onsekiz Mart Üniversitesi	1999-........	Rektör Vekili
ÇOMÜ Fen Bilimleri Enstitüsü	1999-........	Müdür Vekili
ÇOMÜ Fen Edebiyat Fakültesi	1999-........	Dekan Vekili
Çanakkale Onsekiz Mart Üniversitesi	2004-........	Rektör Danışmanı

Diğer Görevler :

Kurum	Tarih	Görev
TÜBİTAK	1990-1994	Yayın Kurulu Üyeliği
Türk Astronomi Derneği	1986-1996	Başkan, Bakan Yrd. ve Yön. Kur. Üyeliği
"Astronomy and Astrophysics" ve "Astrophysics Space Science" Dergileri	1980- .......	Hakemlik
Amatör Astronomlar Derneği	1984-........	Kuruculuk ve Danışmanlık
TÜBİTAK Türk Fizik Dergisi	1982-........	Hakemlik
TÜBİTAK	1983-........	Araştırma Projeleri Danışmanlığı
Uluslararası Astronomi Birliği (IAU)	1994-........	Astronomi Öğretimi Komisyonu Türkiye Temsilcisi
TÜBİTAK Ulusal Gözlemevi	1992-2000	Yönetim ve Akademik Kurul Üyeliği
Çanakkale Onsekiz Mart Üniv.	1999-........	Senato ve Yönetim Kurulu Üyeliği

10)

Üyelikler :

Kurum

Türk Astronomi Derneği

Uluslararası Astronomi Derneği

UNESCO Türk Ulusal Komisyonu

The World Innovation Foundation

11)

Burs ve Ödüller :

Burs ve Ödül	Tarih	Aldığı Kurum
Yüksek Öğretmen Okulu Bursu	1967-1971	Milli Eğitim Bakanlığı
Yurtdışı Doktora Bursu	1975-1978	Milli Eğitim Bakanlığı
Araştırma Bursu	1978-1979	Naval Research Lab. (USA)
Araştırma Bursu	1986	DAAD, Almanya
Bilim Teşvik Ödülü	1983	TÜBİTAK
Bilim Teşvik Ödülü	1992	Prof. M. PARLAR Vakfı
Bilim Teşvik Ödülü	1993	Türk Hava Kurumu
Araştırma Bursu	1999	DAAD, Almanya
Yayın Teşvik Ödülü		TÜBİTAK

12)

Yönettiği Yüksek Lisans ve Doktora Tezleri :

Tez Konusu	Tezi Hazırlayan
Yakın Çift Y ıldızlarda Yörünge Elemanı Çözümü İçin Wilson-Dewinney Yönteminin Uygulanması	Zekeriya Müyesseroğlu Doktora, (1994)
Değen ve Değmeye Yakın Çift Yıldızlar	Selim O. Selam, Yüksek Lisans, (1989)
Yıldızlar için kütle ışınım ve kütle yarıçap bağıntıları	Göksel Kahraman, Yüksek Lisans, (1990)
Yakın çift yıldızların dönem değişimleri	Selim O. Selam, Doktora, (1998)
Büyük kütleli çift yıldızlar	Hasan Ak, Yüksek Lisans, (1998)
Milimetre Marmara Radyo Teleskobu (MRT-2) ile atmosferik ozon gözlemleri	Gözde Bayer, Yüksek Lisans, (1998)
Ay ve gezegenlerin milimetrik radyo ışınımı	Banu Demirel, Yüksek Lisans, (1998)
Örten çift yıldızlarda eksen dönmesi	İbrahim Bulut, Doktora, (Dev. ediyor)
OB- bileşenli etkileşen çift yıldızlarda rüzgar yapısı	Mehmet Tanrıver, Doktora (Dev. ediyor)
WR- bileşenli etkileşen çift yıldızlarda rüzgar yapısı	Hasan Ak, Doktora, (Dev. ediyor)
X-Işın çift yıldızları	Sibel Keskin, Yüksek Lisans, (1999)
Elipsoit değişen yıldızlar	Satılmış Konuk, Yük. Lisans (Dev. ediyor)
RZ Cas örten çift yıldızının dönem değişimi	Göksel Varlık, Yük. Lisans (Dev. ediyor)
Pulsasyon yapan yıldızların dönem değişimi	İbrahim Kılıç, Yük. Lisans, (1999)
RS CVn yıldızlarından x- ışını yayını	Derya Madler, Yük. Lisans (Dev. ediyor)

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Yayınlar :

Demircan O. : Frequency Domain Light Curve Analysis of Partially Eclipsing Binary Systems: with an Application to beta Persei (Algol), Astrophys. Space Sci., 47, 459-488, (1977).

Demircan O. : Fourier Analysis of the Light Curves of Eclipsing Variables XIII, Astrophys. Space Sci., 52, 189-199, (1977).- Kopal Z.,

Demircan O. : Fourier Analysis of the Light Curves of Eclipsing Variables. XIV, Astrophys. Space Sci., 55, 241-261, (1978).

Demircan O. : The Evaluation of Certain Integrals Encountered in the Fourier Analysis of Light Curves Eclipsing Variables, Astrophys. Space Sci., 53, 257-260, (1978).

Demircan O. : Fourier Analysis of the Light Curves of Eclipsing Variables XV, Astrophys. Space Sci., 56, 389-401, (1978).

Demircan O. : Fourier Analysis of the Light Curves of Eclipsing Variables XVI, Astrophys. Space Sci., 56, 453-472, (1978)

Demircan O. : Fourier Analysis of the Light Curves of Eclipsing Variables XXI, Astrophys. Space Sci., 59, 313-332, (1978).

Demircan O. : Fourier Techniques for an Analysis of Eclipsing Binary Light Curves I, Astrophys. Space Sci., 61, 499-506, (1979).

Demircan O. : Fourier Techniques for an Analysis of Eclipsing Binary Light Curves II, Astrophys. Space Sci., 61, 507-515, (1979).

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Demircan O. : Fourier Techniques for an Analysis of Eclipsing Binary Light Curves III, Astrophys. Space Sci., 62, 189-201, (1979).

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Demircan O. : Fourier Techniques for an Analysis of Eclipsing Binary Light Curves IV, Astrophys. Space Sci., 62, 235-240, (1979).

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Demircan O. : Fourier Techniques for an Analysis of Eclipsing Binary Light Curves V, Astrophys. Space Sci., 67, 367.374, (1980).

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Demircan O. : Fourier Techniques for an Analysis of Eclipsing Binary Light Curves VIa, Astrophys. Space Sci., 67, 375-386, (1980).

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Demircan O. : Fourier Techniques for an Analysis of Eclipsing Binary Light Curves VIb, Astrophys. Space Sci., 72, 281-286, (1980).

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Demircan O. : Fourier Techniques for an Analysis of Eclipsing Binary Light Curves VII, Astrophys. Space Sci., 72, 287-291, (1979)

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Demircan O. : Computation of the elements of eclipsing binaries from a part of their light curves, I. Sperical model, Astrophys. Space Sci., 91, 407-416, (1983).

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Demircan O. : On the solution of elements of eclipsing variable stars, Middle East Technical University, Journal of Pure and Applied Sciences, 16, 157-161, (1984).

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Demircan O. : Hankel transform of the product of two Bessel J-functions, Middle East Technical University, Journal of Pure and Applied Sciences, 17, 53-62, (1984).

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Demircan O. : Contact binaries,TUBITAK Doğa Bilim Dergisi, Seri A1, 8, 137-147, (1984).

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Demircan O.: Determinacy of the elements from a Part of the light curves of eclipsing binaries, Astrophys. Space Sci., 123, 305-312, (1986).

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Demircan O. : BV Observations of W UMa Type Binaries: CK Boo, BI CVn and AH Vir, Astrophys. Space Sci., 135, 169-174, (1987).

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Demircan O. : On the Coronal Activity of RS CVn Systems, Information Bulletin on Variable Stars No.2969, (1987).

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Demircan O. : Is There Period- Activity of RS CVn Systems, Astrophys. Space Sci., 136, 201-205, (1987).

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Demircan O. : Correlation Between Bolometric and X-ray Luminosities in RS CVn type Binaries, Astrophys. Space Sci., 137, 195-199, (1987)

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Demircan O.: Classification of binary stars and their importance in Astrophysics, Turkish J. of Physics 8, 205-217, (1987), in Turkish.

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Demircan O. : On the structure of contact binaries, Turkish J. of Physics 8, 218-223, (1987), in Turkish

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Demircan O., Aydın C., Derman E. and Akalın A.: A Puzzling Eclipsing Binary System: Epsilon Aurigae, Communications, Faculty of Sci., Univ. of Ankara, 36, 63-70, (1988).

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Demircan O. : HD167971: A Bright Massive Close Eclipsing Binary System, Communications, Faculty of Sci., Univ. of Ankara, 36, 71-76, (1988).

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Demircan O., Derman E and Selam S. : The First Photoelectric Light Curve of V456 Ophiuchi, Information Bulletin on Variable Stars No.3237, (1988).

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Aslan Z., Aydın C., Tunca Z., - Demircan O., Derman E., Gölbaşi O. and Marşoğlu A.: Site Testing for an Optical Observatory in Turkey, Astronomy and Astrophysics, 208, 385-391, (1989).

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Demircan O., Derman E. and Özeren F. F.: On the Period of HR1362, Publications of the Astronomical Society of the Pacific, 101, 677-680, (1989).

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Demircan O., Derman E. and Akalın A.: 1987 Light Curves of BX Andromedae, Information Bulletin on Variable Stars No.3325, (1989).

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Demircan O., Derman E., Aydın C.and Akalın A.: Photoelectric Variation of Zeta Aurigae, Information Bulletin on Variable Stars No.3342, (1989).

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Demircan O., Derman E., Engin S. and Akalın A.: Photoelectric Variation of Delta Sagittae, Information Bulletin on Variable Stars No.3343, (1989).

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Demircan O., Derman E.: 1988 Light Curves of RX Herculis, Information Bull. on Variable Stars No 3403 (1989).

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Derman E., Demircan O., Dündar H.: 1982-1990 UBV Observations of AM Leonis, Information Bull. on Variable Stars No 3630 (1991).

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Demircan O., Derman E. and Akalın A.: 1989 Light Curves of BH Virginis, Information Bulletin on Variable Stars No.3404, (1989).

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Demircan O., Özeren F.F. and Derman E. : UBV Photometry of HR 1176, Astrophysics and Space Science, 162, 337-340, 1989.

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Demircan O., Derman E. and Akalın A.: Atmospheric Eclipse of Delta Sge, Information Bulletin on Variable Stars No.3486, (1989).

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Aslan Z., Aydın C., Tunca Z., Demircan O., Derman E., Gölbaşi O. and Marşoğlu A.: Site testing observations for the National Observatory in Turkey, Turkish J. of Physics, 13, 1, (1989), in Turkish.

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Demircan O.,: X-ray emission from stellar atmospheres, Turkish J. of Physics13,74, (1989), in Turkish.

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Demircan O., Selam S.: A Catalog of Contact and Near-Contact Binary Stars, Information Bulletin on Variable Stars No.3492, (1990).

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Derman E., Demircan O. and Müyesseroğlu Z.: AW UMa is in Active Phase of Mass Transfer, Information Bulletin on Variable Stars No.3540, (1990).

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Demircan O., Derman E. and Ekmekci F.: 1987-1989 UBV Photometry of OO Aquilae, Information Bulletin on Variable Stars No.3551, (1990).

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Derman E., Demircan O. and Kahraman G.: UBV Photometry of the RS CVn Type Binaries HK Lacertae, Astronomy and Astrophysics Suppl. Series, 86, 421-428, (1990).

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Demircan O.,: New Tables of Spherical eclipse functions, İstanbul Univ. Astr.Fizik Dergisi, 55, 45, (1990).

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Demircan O.,: Activity and Evolution in RS CVn Systems, Active Close Binaries (NATO ASI, ed. C. İbanoğlu), Kluwer Ac. publ., pp.431-465, (1990).

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Müyesseroğlu Z.,Demircan O.and Derman E., Selam S.: Photometry of Some Close Binaries at the Ankara University Observatory, Active Close Binaries (NATO ASI ed. C. İbanoğlu), Kluwer Ac. publ., pp.277-286, (1990).

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Derman E., Demircan O.,: Analysis of the uv spectra of two contact binaries: W UMa and V566 OPH, Turkish J. of Physics, 15, 505, (1991), in Turkish.

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Demircan O., Derman E.and Akalın A.: A Period Analysis of AH Virginis, Astronomical Journal, 101, 201-207, (1991).

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Derman E., Demircan O., and Selam S.: Light Curve and Period Variation of W UMa System LS Delphini, Astronomy and Astrophysics Suppl. Series, 90,301, (1991).

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Demircan O., Selam S.and Derman E.: Photometry of a small amplitude W UMa system LS Del. Astrophysics and Space Science 186, 57 (1991).

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Demircan O., and Kahraman G.: Stellar Mass-Luminosity and mass-radius relations. Astrophysics and Space Science 181, 313, (1991).

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Demircan O .:The magnetic activity of the Sun, Yüzüncü Yıl Univ. Fen Bil. Dergisi 3,1 (1992) in Turkish.

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Demircan O. andKahraman G.: Stellar mass-radius relation. Com. Fac. Sci. Univ. of Ankara 38,9, (1992)

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Demircan O. andDerman E.: The UBV photometry of AW Peg. Astrophysics and Space Science 189, 309 (1992)

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Demircan O .,Derman E.and Kahraman G.: The UBV photometry of chromospherically active binary V 350 Lac. Astrophysics and Space Science 188,151 (1992).

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Derman E.and Demircan O.: A Period study of V 502 Oph. Astronomical Journal 103, 1658, (1992).

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Demircan O . and Selam S.: A Long period eclipsing binary Tau Per. Astronomy and Astrophysics 259,577 (1992).

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Demircan O., Derman E.:A period study of AM Leo.Astronomical Journal 103, 593(1992)

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Demircan O. andDerman E.: The UBV photometry of a contact binary AM Leo , Astronomy and Astropphysics Suppl. 95,213 (1992)

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Demircan O., Derman E.and Müyesseroğlu Z.: A period study of AW UMA . Astronomical Journal 263, 165 (1992)

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Demircan O .: Equilibrium figures of close binary system, Publ. of the Ist. Univ. Obs. No 161, 57,9 (1992).

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Derman E.,Demircan O.:A period study of GK Cep, Astronomical Journal 103, 599(1992)

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Demircan O . and Selam S.: A period study of SS Ari and its implications for the multiplicity of the system. Astronomy and Astrophysics 267, 107 (1993)

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Demircan O . and Selam S.: Long term behaviour of algol type binary ST Per. Astronomy and Astrophysics 98, 513 (1993)

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Derman E. and Demircan O., Akalın A.: The UBV photometry of BX And. Astrophysics and Space Science 205, 327 (1993)

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Demircan O ., Derman E. and Akalın A.: The light curve and period variation of BX And. Astronomy and Astrophysics Suppl. 98,583 (1993)

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Demircan O ., Müyesseroğlu Z.and Selam S.: Photometric effects of a third component star on the light curves of eclipsing binary stars. Turkish Journal of Phyics 17, 598 (1993)

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Demircan, O ., Derman, E., Akalın, A., Selam, S., Müyesseroğlu, Z., 1994, A&Ap. Suppl. Ser., 106, 373, "UBV Photometry of the contact binary AB Andromedae".

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Demircan, O ., Derman E., Akalın A., Selam S., Müyesseroğlu Z.: 1994, MNRAS., 267, 19, "Light-curve and period changes of AB Andromedae".

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Demircan O .: 1994, Publ. Istanbul Univ. Obs., 57, Nr.161, 9, "Equilibrium figures of close binary system".

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Demircan O ., Müyesseroğlu Z., Selam S., Derman E., Akalın A.: 1994, A&Ap., 297, 364, "The Light curve and period variation of CV Cygni".

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Demircan O ., Kaya Y.and Tüfekcioğlu, Z.: 1994, A & Sp. Sci., 222, 213, "A Detached Binary System BK Pegasi".

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Demircan O. , Aslan Z. İbanoğlu C. et al.(35 authors) : 1994, IBVS. No: 4126, "Photoelectric Observations And Minima Times Of Four W Uma Systems : LS Del, SW Lac, V839 Oph And AQ Psc"

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Demircan O ., Akalın A., Selam S., Derman E., Müyesseroğlu, Z.: 1995, Astronomy & Astrophysics, Suppl., 114, 167. "A Period Study of XZ Andromedae"

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Demircan O ., Ozdemir S., Allakhverdiev A.O., Guseinov, O.H.: 1995, The Observatory, 115, No.202, "On the Mass-Ratio Distribution of OB-Type Binaries"

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Demircan O. , Gürol B.: Light curves and period changes of OO Aquilae, A&Ap SS 115, 33 (1996).

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Demircan O. , Özdemir S., Tanrıver M.: A detached binary system V505 Persei, Ap SS. 250,327 (1997).

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Albayrak B., Demircan O.: An atlas of theoretical (O-C) diagram of eclipsing binaries with third component stars in elliptical orbits, Turkish J. of Physics, 21,951 (1997).

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Demircan O., Özdemir S., Albayrak B., Ak H., Tanrıver M., Değirmenci Ö.L., Erdem A., Sezer C.: A model of the early type binary system BF Auriga, Revista Mexicana de Astronomia y Astrofisica, 33,131 (1997).

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Demircan O., Ak H., Özdemir S., Tanrıver M., Albayrak B.: UBV Photometry of the WR Binary CQ Cepei, Astron. Nachr. 318,267 (1997)

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Kim C. -H., Jeong J. -H., Demircan O., Müyesseroğlu Z., Budding E.: The period changes of YY Eridani, Astronomical J. 114, 2753 (1997).

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Djurasevic G., Demircan O., Özdemir S., Tanrıver M., Müyesseroğlu Z., Ak H., Albayrak B.: An analysis of the light curves of the early type binary BF Aurigae, Astrophys. Space Sci., 253,265 (1997).

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Budding E., Kim C. -H., Demircan O., Müyesseroğlu Z., Saijo K., Banks T.: The contact binary system YY Eridani, Astron. Astrophys., 246,229 (1997).

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Değirmenci Ö.L., Erdem A., Sezer C., - Demircan O., Özdemir S., Albayrak B., Ak H., Tanrıver M., : UBV photometry of an early type binary: V382 Cyg, Astronomy & Astrophys., Suppl. Ser., 134, 327 (1999).

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Albayrak B., Özeren F.F., Ekmekçi F., Demircan O.: Period variation of six RS CVn-type binaries with possible light time effect, Revista Mexicana de Astronomia y Astrofisica, 35, 3 (1999).

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Özel M. E., Yusifov I. M., Allahverdiev A. O., Vertiy A. A., Bayer G., Demircan O., Kırbıyık H., Adıgüzel T.:“Calibration of Millimetric Marmara Radio Telescope and Radio Detection of Ozone Line Over Gebze/Kocaeli in Turkey”, TUBİTAK, Tr J of Physics 23, 497 (1999).

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Özdemir S., Demircan O., Erdem A., Çiçek C., Bulut İ., Soydugan F., Soydugan E. “ UBV photometry of EF Boo”, IBVS No 5033, 2001

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Özdemir S., Demircan O., Erdem A., Çiçek C., Bulut İ., Soydugan F., Soydugan E. “The First Ground-Based Photometric Observations of V899 Her”, IBVS No 5034, 2001.

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Özdemir S., Demircan O., “The 150 d Modulation of the X-ray emmission of Cyg X-1”, Astrophys. Space Science, 2001

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Özdemir S., Ak H., Tanrıver M., Gülseçen H., Gülseçen S., Saygaç A.T., Budding E., Demircan O., “ UBV Photometry of the Massive Eclipsing Binary TT Aur”, Publ. of Astronomical Soc. of Australia, 2001

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Degirmenci, O. L.; Bozkurt, Z.; Yakut, K.; Demircan, O.; Erdem, A.; Cicek, C.; Ozdemir, S.; Bulut, I.; Soydugan, F.; Soydugan, E.; First BVR Photometry of V821 Cassiopeiae,03/2003

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Bilimsel Toplantılarda Sunulan Makaleler

Demircan O. : (invited paper) Light curve analysis for the basic spherical model of eclipsing variables in the frequency domain; in Photometric and Spectroscopic Binary Systems (ed. E. B. Carling and Z. Kopal), D. Reidel Publ. Co. Holland,p.125-154, (1981).

Demircan O., Güdür. N.: The Light and Period Variations of OO Aquilae in the frequency domain; in Photometric and Spectroscopic Binary Systems (ed. E. B. Carling and Z. Kopal), D. Reidel Publ. Co. Holland, p.433-460, (1981).

Demircan O. : The methods of light curve analysis of eclipsing binary stars, III rd. National Astronomi Meeting, p.18, (1982) in Turkish.

Demircan O. : On the light curve analysis of RS CVn type binaries, in Proceedings of the XVIII th. General Assembly of IAU, (ed. R. M. West), Patras, p.286, (1982).

Demircan O. : (invited paper) Eclipsing binary stars, IV th. National Astronomy Meeting, p.137, (1984), in Turkish.

Demircan O. : On the analysis of the light curves of eclipsing binaries, IV th. National Astronomy Meeting, p.173, (1984), in Turkish.

Demircan O. : Some results from the radiosonde observations in Izmir and Isparta, IV th. National Astronomy Meeting, p.245, (1984), in Turkish.

Aslan Z., Aydın C., Tunca Z., Demircan O. Derman E, Gölbaşı O. and Marşoğlu A.: The site testing observations for the National Observatory in Turkey, IV th. National Astronomy Meeting, p.237, (1984), in Turkish.

Demircan O.: The eclipsing binaries CD Tau and V909 Cyg, VII th. National Physics Meeting, p.521, (1985), in Turkish.

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Demircan O. : Magnetic activity of the RS CVn-type binaries, IV th. National Astronomy Meeting, p.121, (1986), in Turkish.

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Demircan O. : Coronal Activity of RS CVn Systems, Fifth European Solar Meeting "Solar and Stellar Physics", 27-30 April, 1987, Titisee, FRG.

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Demircan O. : Re-Analysis of the Coronal Emission from RS CVn Binaries, Hot thin Plasmas in Astrophysics, 1987, Cargese, France.

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Demircan O., Derman E.: On the Coronal Activity of RS CVn System, The Sun and Cool Stars (IAU Symp. 130), 17-21 July (1990), Helsinki, Filland.

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Demircan O.,: The photometric eclipse effect of the accretion disks. IV th Nanional Astronomy Meeting, p.333 (1988) in Turkish.

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Demircan O.: (invited paper) The scientometry of the astronomy research in Turkey between 1975-1985, VI th. National Astronomy Meeting, p.431 (1988) in Turkish.

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Özeren F.F., Demircan O., Derman E.: The period analysis of the photometric observations of HR 1362. VI th. National Astronomy Meeting, p.405 (1988) in Turkish.

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Müyesseroğlu Z., Keskin V.,Demircan O.: The photometric analysis of RS Vul. VI th. National Astronomy Meeting, p.323 (1988) in Turkish.

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Selam S., Demircan O.: The photometric analysis of V456 Oph. VI th. National Astronomy Meeting, p.309 (1988) in Turkish.

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Akal_n A.,Demircan O.: The photometric analysis of Epsilon Aurigae. VI th.National Astronomy Meeting, p.287 (1988) in Turkish.

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Demircan O.: Advances in Astronomy in Turkey. X th National Physics Meeting, Pp.56 (1988) in Turkish.

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Demircan O., Derman E. and Müyesseroğlu Z.: The eclipsing binary AW Pegasi. XI th National Physics Meeting, p.47 (1989) in Turkish.

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Akal_n A., Engin S.and Derman E., Demircan O.: The atmospheric pulsations in the atmospheres of supergiant stars. XI th National Physics Meeting. p.31 (1989) in Turkish.

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Müyesseroğlu Z. and Derman E., Demircan O.: The light curve analysis of YY Eridanus. XI th National Physics Meeting, p.53 (1989) in Turkish.

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Selam S., Müyesseroğlu Z., Demircan O.: The light curve analyis of V 456 Oph by using Wilson-Dewinney method. XI.th National Physics Meeting. p.55 (1989) in Turkish.

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Özeren F.F., Aslan Z., Derman E., Demircan O., Aydın C., Akalın A.and Kahraman G.: The photometric observations of RS CVn systems in the Ankara University Observatory. XI th National Physics Meeting. p.57 (1989) in Turkish.

26-

Kahraman G.,Demircan O.: The stellar mass-radius relation. XI th National Physics Meeting, p.58 (1989) in Turkish.

27-

Demircan O.: (invited paper) Equlibrium Figures of close binary systems. in Astro-Particles and Nuclear Physics p.13 (1989).

28-

Müyesseroğlu Z., Derman E., Demircan O.: The light and period variations of V 346 Aql, KR Cyg and FG Hya. VII th National Astronomy Meeting, p.351 (1990) in Turkish.

29-

Özeren F. , Derman E., Demircan O.: A very long period RS CVn system EK Eri. VII th National Astronomy Meeting, p.457 (1990) in Turkish.

30-

Kahraman G., Demircan O.: The mass-Luminosity and mass-radius relations for the main sequence stars. VII th National Astronomy Meeting, p.51 (1990) in Turkish.

31-

Kahraman G., Derman E., Demircan O.: Some statistical results of the photometric observations obtained at The Ankara University Observatory VII th National Astronomy Meeting, p.435 (1990) in Turkish.

32-

Selam S., Derman E., Demircan O.: The period analyis of LS Delphini VII th National Astronomy Meeting, p.183 (1990) in Turkish.

33-

Selam S., Demircan O.: The Contact and near-contact binary systems. VII th National Astronomy Meeting, p.419 (1990) in Turkish.

34-

Dündar H., Demircan O. and Derman E.: The light and period variation of AM Leonis, VII th National Astronomy Meeting, p.481 (1990) in Turkish.

35-

Demircan O.: The contact binary system OO Aquila, VII th National Astronomy Meeting, p.193 (1990) in Turkish.

36-

Akalın A., Demircan O., Engin S. and Derman E.: Atmospheric eclipsing binary Delta Sagittae, VII th National Astronomy Meeting, p.343 (1990) in Turkish.

37-

Akal_n A., Demircan O. andDerman E.: The period analysis of AH Virginis, VII th National Astronomy Meeting, p.409 (1990) in Turkish.

38-

Demircan O.: (invited paper) The angular momentum evolution of interacting binary systems. VIII th. National Astronomy Meeting p.12 (1992) in Turkish.

39-

Demircan O.: The photo center of close binary systems, VIII th. National Astronomy Meeting p.11 (1992 in Turkish.

40-

Akalın A., Demircan O. and Derman E.: The period variation of BX And,VIII th. National Astronomy Meeting p.2 (1992) in Turkish.

41-

Müyesseroğlu Z., Demircan O. and Derman E.: The period variation of AW Uma, VIII th. National Astronomy Meeting, p.34 (1992) in Turkish.

42-

Selam S. and Demircan O.: Algol type binary ST Per, VIII th. National Astronomy Meeting, p.44 (1992) in Turkish.

43-

Selam S. and Demircan O.: Light curve analysis of eclipsing binaries with eliptical orbits, VIII th. National Astronomy Meeting p.46 (1992) in Turkish.

44-

Müyesseroğlu Z., Demircan O. and Selam S.: The third light effect in the light curves of eclipsing binaries, VIII th. National Astronomy Meeting p.31 (1992) in Turkish.

45-

Demircan O .and Derman E.: The UV light curves of W UMa and V 566 Oph, VIII th. National Astronomy Meeting p.20 (1992) in Turkish.

46-

Demircan O . and Selam S.: Observational properties of contact and near contact binaries. in Inside the stars, IUA Colloq. No 137. (1992).

47-

Selam S.and Demircan O.: Some statistical results on contact and near contact binaries (Poster).in Evolutionary links in the Zoo of interacting binaries, Mem. S. A. It. 65,405 (1994).

48-

Ozdemir S. and Demircan O.: Site testing for the National Observatory in Turkey. First Eurasia Symp. on the Space Sci. and Technologies, TÜBİTAK, MAM (1993)

49-

Özdemir S and Demircan O.: The technique and program for optical observations at the Ankara University Observatory. 1st. Eurasia Symp. on the Space Sci. and Technologies, TÜBİTAK, MAM (1993).

50-

Demircan O .: Long-term light and period variations of some contact binaries. in The impact of long-term monitoring of Variable star research (NATO ARW) ed. C.Sterken. p 177 (1994)

51-

Özeren, F. F., Demircan, O., National Astronomy Meeting, 1994, p.56, "Photometry of EK Eridanus (in Turkish)".

52-

Albayrak B., Aydın C., Demircan O.: National Astronomy Meeting, 1994, p.69, " Magnetic Activitiy in HR7275 (in Turkish)".

53-

Özdemir S., Demircan O., Guseinov O., Allahverdiev A.: National Astronomy Meeting, 1994, p.99, "The mass ratio distribution of OB type binaries (in Turkish)".

54-

Demircan O,: National Astronomy Meeting, 1994, p.42, "Fast rotating F-stars (in Turkish)".

55-

Selam S., Demircan O.: National Astronomy Meeting, 1994, (poster), "Period variation of some algol systems: TX UMa, R CMa ve RW Per (in Turkish)".

56-

Demircan O ., Derman E., Akalın A., Selam S., Müyesseroğlu Z.: National Astronomy Meeting, 1994, (poster), "Period variation of AB Andromedae (in Turkish)".

57-

Demircan O ., Kaya Y., Tufekcioğlu Z.: National Astronomy Meeting, 1994, (poster),"The algol system BK Pegasi (in Turkish)".

58-

Demircan O ., Ergun I., Gök F., Hüseyinov O., Allahverdiev A.: In "Lives of Neutron Stars", "Space velocities of pulsars", Kluwer Acad. Press, p.275(1995).

59-

Selam S.and Demircan O.: In "Lives of Neutron Stars", (poster)"Observational Properties of OB-type Binaries as the Progenitors of XRB's", Kluwer Acad. Press, (1995).

60-

Ak H., Ekmekci F., Albayrak B., Özeren F. F., Demircan O.: Photometric variability of three noneclipsing active binaries: II Peg, UX Ari and V1762 Cyg, in Cool Stars, Stellar Systems and the Sun. (eds. L. Pallavicini, A. K. Dupree), Astr. Soc. of Pacific Conf Ser V109, p 637 (1996).

61-

Ak H., Albayrak B., Aslan Z., Demircan O.,Müyesseroğlu Z., Özdemir S., Yüce K.: V and R observations of two carbon stars: UX Dra and RY Dra; in Carbon Star Phenomena (IAU Sym. Ed. R. F. Wing), Kluwer Ac. Publ. In press (1998).

62-

Demircan O.: Interaction of eclipsing binaries with their environment, in interaction of stars with their environment, ed. L. V. Toth, L. Szabadas, Konkoly Obs. P397(1997).

63-

Özeren F. F., Albayrak B. Ekmekçi F. Demircan O.: Possible interaction of some RS CVn-type binaries with their environment, ed. L. V. Toth, L. Szabadas, Konkoly Obs. P393 (1997).

64-

Saygaç T., Koçer D., Demircan O.: The need of planetaria in Turkey; in Astr. Education (IAU sym., ed. D. McNally), Kluwer Publ. p … (1997).

65-

Özel M. E., Yusifov I. M., Karelin Y., Demircan O., Gözel İ., Adigüzel T., Bayer G., Demirel B.: Calibration of milimetric 2-m Marmara Radio Telescope (MRT-2); in X th National Astr. Meeting, p309 (1997).

66-

Ekmekçi F., Özeren F. F., Albayrak B., Demircan O.: Period variation of some long period RS CVn binaries, in X th National Astr. Meeting, p51 (1997).

67-

Özeren F. F., Albayrak B., Ekmekçi F., Demircan O.: Period variation of some short period RS CVn binaries, in X th National Astr. Meeting, p56 (1997).

68-

Özdemir S., Demircan O., Albayrak B., Tanrıver M., Ak H.: Photometric analysis of the massive binary BF Aur, in X th National Astr. Meeting, p131 (1997).

69-

Tanrıver M., Özdemir S., Demircan O.: Photometric analysis of the algol type binary V505 Per, in X th National Astr. Meeting, p138 (1997).

70-

Ak H., Demircan O., Özdemir S., Albayrak B., Tanrıver M.: Photometric analysis of the massive binary CQ Cep, in X th National Astr. Meeting, p146 (1997).

71-

Helvaci M., Aydın C., Demircan O.: A period study of the contact binary system U Peg, in X th National Astr. Meeting, p164 (1997).

72-

Demircan O .: (invited paper) Massive binaries with OB and WR components, in X th National Astr. Meeting, p61 (1997).

73-

Demircan O.: Could there be planets around binary star systems?, in X th National Asr. Meeting, p517 (1997).

74-

Özdemir S., Demircan O., Yılmaz N. : Statistics of the x-ray binaries, in X th National Astr. Meeting, p509 (1997).

75-

Özdemir S., Yüce K., Demircan O., Engin S., Yılmaz N. : UBV photometry of v1073 Cygni, in X th National Astr. Meeting, p511 (1997)

76-

Demircan O. : Optical telescopes, in Astronomy as an applied science, Eyüboğlu Educational Foundation Publ. No 2, p40 (1997).

77-

Demircan O.: (invited paper) Unseen components of eclipsing binary systems, in the proceedings of First International Conference For Astronomy and Space Sciences in Jordan, 4-6 May 1998, Ed. H. Al-Naimiy, in press.

78-

Demircan O. : (invited paper) Dynamical evolution of RS CVn type binaries, in the proceedings of The Magnetic Activity in Cool Stars, Ed. O. Demircan, p425-432, 1999.

79-

Demircan O. : (invited paper) Coronal activity of RS CVn type binaries, in the proceedings of The Magnetic Activity in Cool Stars, Ed. O. Demircan, p433-443, 1999.

80-

Selam O.S., Demircan O. : Cyclic period variation of some Algol type binaries, in the proceedings of The Magnetic Activity in Cool Stars, Ed. O. Demircan, p301-311, 1999.

81-

Demircan O. : Asymmetry in the light curves of massive binaries, in the proceedings of The Variable Stars as essential astrophysical tools, Ed. C. Ibanoğlu, Kluwer Acad. Pub, P623-630, 1999.

82-

Demircan O. : Period chances as a tool to study unseen components around eclipsing binaries, in the proceedings of The Variable Stars as essential astrophysical tools, Ed. C. Ibanoğlu, Kluwer Acad. Pub., P615-622, 1999

83-

Selam O. S., Demircan O. : Orbital period variations of some Algol type binaries, in the proceedings of The Variable Stars as essential astrophysical tools, Ed. C. Ibanoğlu, Kluwer Acad. Pub., P605-614, 1999.

84-

Özdemir S., Ak H, Demircan O. :” UBV photometry of the eclipsing binary TT Aur”, in the proceedings of The Variable Stars as essential astrophysical tools, , Ed. C. Ibanoğlu, Kluwer Acad. Pub., P643-648, 1999.

85-

Özdemir S., Demircan O., “ X-ray Binaries in UV radiation” XI th National Astronomy Meeting, 7-10 Aug. 1999 Fırat Univ., Elazığ.

86-

Demircan O. : Studies on the harmony of the World, in the proceedings of The History of Science and Technology, 19-20 Oct. 1998 Istanbul, Ed. F. Günergun, in press.

87-

Demircan O.: Astronomy in Turkey (in Turkish);Türkiye Cumhuriyetinin 75. Yılında Astronomi Çalışmaları, TÜBA; 1999, P145-157.

88-

Adıguzel, T., Özel M. E., Yusifov I. M., Demircan O., Bayer G., Demirel B., Kırbıyık H.: Summary of Radio Observations by Marmara Radio Telescope MRT-2, 18th Physics Congres, Çukurova Univ. Oct. 1999.

89-

Soydugan F., Özdemir S., Soydugan E., Erdem A., Bulut İ., Demircan O., “ light curve analysis of YY CrB”, XII th National Astronomy Meeting, 4-8 Sept. 2000, Ege Univ. İzmir.

90-

Özdemir, S.; Ak, H.; Tanriver, M.; Gülseçen, H.; Gülseçen, S.; Saygaç, A. T.; Budding, E.; Demircan, O.; UBV Photometry of the Massive Eclipsing Binary TT Aur; 2000IAUS..177..515A; 00/2000

91-

Ak, Hasan; Albayrak, Berahitdin; Aslan, Zeki; Demircan, Osman; Müyesseroglu, Zekeriya; Özdemir, Sacit; Yüce, Kutluay; V and R Observations of Two Carbon Stars: UX Dra and RY Dra; 2000IAUS..177..515A; 00/2000

92-

Selam, S. O.; Demircan, O.; Orbital Period Variations of Some Algol-Type Binaries; 2000vsea.conf..605S; 00/2000

93-

Demircan, O.; Period Changes as a Tool to Study Unseen Components Around Eclipsing Binaries; 2000vsea.conf..615D; 00/2000

94-

Demircan, O.; Asymmetry in the Light Curves of Massive Binaries; 2000vsea.conf..623D; 00/2000

95-

Özdemir, S.; Demircan, O.; Ak, H.; UBV Photometry of the Massive Eclipsing Binary TT Aurigae; 2000vsea.conf..643O; 00/2000

96-

Erdem, A.; Demircan, O.; Güre, M.; The light and period changes of RT Andromedae; 2001A&A...379..878E, 12/2001

97-

Albayrak, B.; Demircan, O.; Djurasevic, G.; Erkapic, S.; Ak, H.; A light and period study of SV Camelopardalis, 2001A&A...376..158A, 09/2001

98-

Bulut, I.; Demircan, O.; The First Ground-Based Photometric Observations of V401 Lacertae; 2001IBVS.5179....1B; 09/2001

99-

Erdem, A.; Budding, E.; Demircan, O.; Cicek, C.; Ozdemir, S.; Bulut, I.; Soydugan, E.; Soydugan, F.; UBV Photometry of The Newly Found Active Star YY Coronae Borealis; 2001IBVS.5152....1E; 08/2001

100-

Soydugan, F.; Budding, E.; Demircan, O.; Erdem, A.; Cicek, C.; Ozdemir, S.; Bulut, I.; Soydugan, E.; Degirmenci, O. L.; Bozkurt, Z.; First Photometric Observations of MR Delphini; 2001IBVS.5153....1S; 08/2001

101-

Soydugan, E.; Demircan, O.; Keskin, V.; Erdem, A.; Cicek, C.; Ozdemir, S.; Bulut, I.; Soydugan, F.; BVR Photometry of CW Cephei; 2001IBVS.5154....1S 08/2001

102-

Cicek, C.; Demircan, O.; Erdem, A.; Ozdemir, S.; Bulut, I.; Soydugan, E.; Soydugan, F.; Keskin, V.; The First Ground-Based Photometric Observations of GM Draconis; 2001IBVS.5144....1C, 07/2001

103-

Albayrak, B.; Demircan, O.; Djurasevic, G.; Erkapic, S.; Ak, H.; SV Cam BVR light curves (Albayrak+, 2001); 2001yCat..33760158A; 07/2001

104-

Bulut, I.; Demircan, O.; Erdem, A.; Cicek, C.; Ozdemir, S.; Soydugan, F.; Soydugan, E.; Degirmenci, O. L.; Bozkurt, Z.; Yakut, K.; The First Ground-based Photometric Observations of V397 Cephei; 2001IBVS.5129....1B; 06/2001

105-

Ozdemir, S.; Demircan, O.; Erdem, A.; Cicek, C.; Bulut, I.; Soydugan, F.; Soydugan, E.; UBV Photometry of EF Boo; 2001IBVS.5033....1O; 02/2001

106-

Ozdemir, S.; Demircan, O.; Erdem, A.; Cicek, C.; Bulut, I.; Soydugan, F.; Soydugan, E.; The First Ground-Based Photometric Observations of V899 Her; 2001IBVS.5034....1O; 02/2001

107-

Özdemir, S.; Demircan, O.; The 150^d Modulation of the X-ray Emission of CYG X-1; 2001Ap&SS.278..319O; 00/2001

108-

Özdemir, S.; Demircan, O.; Erdem, A.; Çiçek, C.; Bulut, I.; Soydugan, E.; Soydugan, F. A photometric study of the recently discovered eclipsing binary V899 Herculis, 2002A&A...387..240O, 05/2002

109-

Ozdemir, S.; Demircan, O.; Erdem, A.; Cicek, C.; Bulut, I.; Soydugan, F.; Soydugan, E.; UBV photometry of V899 Her (Ozdemir, 2002), 2002yCat..33870240O, 04/2002

110-

Hegedus, T.; Borkovits, T.; Biro, I. B.; Demircan, O.; Erdem, A.; Cicek, C.; Ozdemir, S.; Bulut, I.; Soydugan, F.; Soydugan, E.; New Times of Minima of Eclipsing Binary Systems, 02/2003

111-

Degirmenci, O. L.; Bozkurt, Z.; Yakut, K.; Demircan, O.; Erdem, A.; Cicek, C.; Ozdemir, S.; Bulut, I.; Soydugan, F.; Soydugan, E.; First BVR Photometry of TV Ursae Minoris, 02/2003

112-

Bakis, V.; Erdem, A.; Budding, E.; Demircan, O.; GSC 4288-186: a New Eccentric Binary, 02/2003

113-

Demircan, O.; Erdem, A.;Ozdemir, S.; Cicek, C.; Bulut, I.; Soydugan, F.; Soydugan, E.; Bakis, V.; Kabas, A.; Bulut, A.; The First Eclipsing Binary Observations at the Ulupinar Astrophysics Observatory, 2003IBVS.5364....1D, 01/2003

15)

Kitaplar :

Demircan O. : Büyük Kültür Ansiklopedisi, 12 Cilt (Başkent Yayınları, Ankara), Astronomi, Astrofizik ve Uzay Bilimleri Terimleri ve Genel Danışmanlık, (1983-1986), in Turkish.

Demircan O. : Integral transforms; a collection of general formulas, Hacettepe TAS Kitapçılık Ltd. Ankara, p.170, (1984).

Demircan O. : The Solar System, Editor Isaac Asimov (Maya Yayinlari, Ankara), Turkce Cevriminin güncellestirilmesi ve Önsözü, (1983), in Turkish.

Aydın Z., Aydın C., Demircan O., Kırbıyık H., Derman E.,Astronomi ve Uzay Bilimleri (text book), Tekışık Yayıncılık, 1996, Ankara

Demircan O., Bayer G., İçinde Yaşadığımız Evren Parçası: Güneş Sistemi, Doruk Yayınları, 1997 Ankara