| Ana Sayfa | Fizik Bölümü | RAST2005 | Bildiri Özetleri |

 

2nd International Conference on
Recent Advances in Space Technologies
Space in the Service of Society

RAST 2005
June 09-11, 2005
Istanbul, TURKEY

  •   PREPARATIONS OF THE METEORITE/IMPACT CRATER DATA BASE FOR TURKEY

Özlem KOCAHAN, Mehmet Emin ÖZEL, Ebru ŞENGÜL, Sibel ÖZMAYA

ABSTRACT

Interplanetary space is populated with large numbers of small bodies in orbits that can intersect those of planets and moons. Therefore, individual impacts appear on the surfaces of planetary bodies which are called impact craters. While impacting meteorites are useful in determine the early solar system processes, resultant impact craters are useful to determine the ages of the surfaces and related erosional effects on the body. At ÇOMU (Çanakkale Onsekiz Mart University)  we aime to create a Meteorite/Impact Craters Data Base of Turkey in a computer environment. The data base will be reachable through internet for wider use. Preparations and actions for this exercise will be presented.

        For the initial phase, we have collected related information through the scientific and literary books, papers and thesis on the topic. We can classify our present efforts on meteorite/impact crater event identification along following lines. 1) Meteorites which have fallen down to our country recently (i.e., Antalya meteorite in 2001, Afyon meteorite in 2002 and others); 2) Meteorite and their impact craters, which mentioned in historical records (Gallipoli meteorite, 467 BC; Birgi meteorite, 1335 AD etc.); 3) Candidate impact craters in Turkey which were studied earlier (Dağcı, 1997; Özel et al., 1998); 4) Other events that can be recognized through sattellite images and maps; 5) New events during our preparations. These candidates and established structures will be investigated and relevant data will be used for the aimed data base. We aim to complete the exercise by 2006.

                Key words: meteorite, impact crater, Turkey, remote sensing, data bese

 

  •   CHEMICAL ANALYSIS OF SOME METEORITES IN TURKEY

            Ebru ŞENGÜL, Özlem KOCAHAN, Sibel ÖZMAYA, Mehmet Emin ÖZEL, Osman DEMİRCAN

            ABSTRACT

        Meteorites which are countered as the primitive samples of matter that constitute the solar system have important knowledge about their parent bodies and the interplanetary space. Meteorite carry some traces much occur during their staying in interplanetary space and passing through a planetary atmosphere before reaching at the surface of a planet. Information about early solar system processes can be determined from the classification of meteorites. A classification of meteorites based on their mineral composition and chemical properties are usually carried out.

In this study, we have carried out some investigation and chemical analysis on meteorite candidates found in Turkey. The results of chemical analysis (some major and minor element abundances) of samples will be represented and will be compared with the literature. Since there is no national information system in this area, we also aim to create such a database for Turkey.

            Key Words: Meteorite, Chemical Analyze, Turkey, Database, Chemical Classification.

 

  •   METEORITES : SACRED STONES FROM SKY

            Sibel ÖZMAYA, Özlem KOCAHAN, Mehmet Emin ÖZEL 

ABSTRACT 

Meteorites  which are stony and iron remnants from early solar system, falling on the planetary surfaces including Earth, have also been used as ‘sacred stones from gods’, throuhout the human history.  Most famous example still having a sacred  function is in the Kaaba, at Mecca. There are other examples of historical records where such stones are mentioned and sometimes, sacrificed. Artemis Temple of Ephesus did contain such a stone which is still not discovered and/or missing. The well-recorded 467 BC meteorite that fell to Gelibolu peninsula and  known to be examined by Anaxagoras of Lampsakos (present day Lapseki) may have beneen related to the sacred stone of Artemis Temple.

Samples of such stones, when dated by the methods of achaeophysics and archaeometry will increase our understanding of our past and the present. As part of the Archaeometry Program at Çanakkale University (ÇOMÜ) investigation of such historical records and related findings is also aimed and other possible historical cases and examples will be presented.

Key words: Meteorites, sacred stones, historical records, archaeometry, archaeo-physics.

 

  •   CCD Photometry of some Near Earth Asteroids

A.Kabas, Y.Kaçar, O.Demircan

ABSTRACT

We present new CCD photometry of some Near Earth Asteroids, together with their earlier observational data from the literature. The light variations were analysed and interpreted in terms of the physical parameters of the asteroids.

Key words: Near Earth Asteroids, the Light Variations, Physical Parameters of the Asteroids