Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Sipahi, Esin"'
Autor:
Sipahi, Esin, Dal, Hasan Ali
In this study, we present CG Aur's photometric observations obtained in the observing seasons 2011 and 2012, the first available multi-colour light curves. Their shape indicates that the system is an Algol binary. The light curve analyses reveal that
Externí odkaz:
http://arxiv.org/abs/1209.2248
Autor:
Sipahi, Esin
Publikováno v:
2012NewA...17..383S
New multi-color UBVR light curves of the eclipsing binary KR Cyg were obtained in 2005. Photometric solutions were derived using the Wilson- Devinney method. The result shows that KR Cyg is a near-contact binary system with a large effective temperat
Externí odkaz:
http://arxiv.org/abs/1206.6094
Autor:
Sipahi, Esin
Publikováno v:
2012NewA...17..377S
We present CCD photometric observations of the slow irregular type variable KU Her. We have also used observations from the ASAS Database and the AAVSO International Database. The V-band observations span eight years from August of 2002 to September
Externí odkaz:
http://arxiv.org/abs/1206.4461
We present the results of the high-resolution spectroscopic observations of the neglected binary system HD\,194495 (B3\,IV-V+B4\,V). A combined analysis of three different photometric data set ($Tycho$ B$_T$ and V$_T$ photometry, H$_p$-band data of $
Externí odkaz:
http://arxiv.org/abs/1106.5355
Autor:
Sipahi, Esin, Evren, Serdar
We present the light curve variations of the two active binaries with hot subdwarf component. According to the brightness variations outside of the eclipses, the giant components of the systems are chromospherically active stars. The dark and cool ac
Externí odkaz:
http://arxiv.org/abs/astro-ph/0607183
Publikováno v:
In New Astronomy 2012 17(2):215-220
Publikováno v:
Volume: 1, Issue: 2 515-515
Turkish Journal of Astronomy and Astrophysics
Turkish Journal of Astronomy and Astrophysics
Bileşenlerinden biri Gamma Dor türü zonklayan örten çift yıldızların sayısı oldukça azdır. Yıldızların salt parametrelerini ancak çift çizgili örten çiftlerin ışık ve dikine hız eğrlerinin analizi ile duyarlı olarak ölçüle
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=tubitakulakb::abef9f487384eb1bbd77475167aeb034
https://dergipark.org.tr/tr/pub/tjaa/issue/53875/829368
https://dergipark.org.tr/tr/pub/tjaa/issue/53875/829368
Autor:
SİPAHİ, Esin, AK, Tansel
Publikováno v:
Volume: 1, Issue: 2 505-508
Turkish Journal of Astronomy and Astrophysics
Turkish Journal of Astronomy and Astrophysics
Bu çalışmada klasik sefeid yıldızları için dönem-ışıtma (P-L) bağıntısının kalibrasyonuna katkı yapmak amacıyla açık küme sefeidleri kullanılarak güncellenmiş bir bağıntı sunulmuştur. Açık küme üyesi olduğu bilinen ya
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=tubitakulakb::5198c7922d711ce90698b4fa67ad280a
https://dergipark.org.tr/tr/pub/tjaa/issue/53875/829193
https://dergipark.org.tr/tr/pub/tjaa/issue/53875/829193
WOS: 000298482300047
The equivalent widths (EWs) of the C ii lambda 4267 angstrom line were measured for the mass-gaining primary stars of 18 Algol-type binary systems. The EWs of the gainers were compared with the EWs of single standard stars t
The equivalent widths (EWs) of the C ii lambda 4267 angstrom line were measured for the mass-gaining primary stars of 18 Algol-type binary systems. The EWs of the gainers were compared with the EWs of single standard stars t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e6a32a30c5a7e591183b13c00a7a9ee6