Zobrazeno 1 - 10
of 40
pro vyhledávání: '"I. Özavcı"'
Publikováno v:
New Astronomy. 101:102022
Publikováno v:
Contributions of the Astronomical Observatory Skalnaté Pleso. 50
High precision and continuous light curves obtained from the Kepler Space Telescope provide significant information about the behavior of cool star-spots. In this study, we obtain surface maps of the eclipsing binary KIC 9821078 with the help of the
Publikováno v:
Contributions of the Astronomical Observatory Skalnaté Pleso. 50
We present the first Doppler Imaging (DI) study of the chromospherically active RS CVn binary FF Ursae Majoris. New mid-resolution (R similar to 13500) time series spectral data were acquired using the echelle spectrograph attached to the 0.4-m Kreik
Autor:
Emre Işık, Douglas O'Neal, M. Yılmaz, Gaitee A. J. Hussain, I. Özavcı, Hakan Volkan Şenavci, Selim O. Selam
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 474:5534-5548
We present a detailed analysis of surface inhomogeneities on the K1-type sub-giant component of the rapidly rotating eclipsing binary KIC 11560447, using high-precision Kepler light curves spanning nearly four years, corresponding to about 2800 orbit
Akademický článek
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Publikováno v:
New Astronomy. 34:271-277
We present the results of simultaneous Wilson–Devinney analyses of light and radial velocity curves of two contact binaries in the constellation Ursa Majoris. We found that HH UMa is an A-subtype W UMa binary, which conflicts with the classificatio
Autor:
I. F. Bikmaev, Varol Keskin, Hideyuki Izumiura, E. N. Irtuganov, M. Yılmaz, S. S. Melnikov, Bun'ei Sato, Norio Okada, R. Ya. Zhuchkov, A. I. Galeev, Eiji Kambe, Selim O. Selam, I. Özavcı
Publikováno v:
New Astronomy. 34:108-113
We present three low-mass and one solar mass companions found around four intermediate-mass giants HD1695, HD120235, HD145316 and HD200004 from precise radial velocity measurements using the 1.5 m Russian-Turkish Telescope (RTT150) at the TUBITAK Nat
Autor:
I. F. Bikmaev, M. Yılmaz, E. N. Irtuganov, Varol Keskin, R. Ya. Zhuchkov, Selim O. Selam, Hideyuki Izumiura, I. Özavcı, A. I. Galeev, Eiji Kambe, S. Melnikov, Bun'ei Sato
WOS: 000416942200014
For over 10 years, we have carried out a precise radial velocity (RV) survey to find substellar companions around evolved G, K-type stars to extend our knowledge of planet formation and evolution. We performed high precision
For over 10 years, we have carried out a precise radial velocity (RV) survey to find substellar companions around evolved G, K-type stars to extend our knowledge of planet formation and evolution. We performed high precision
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::16a10c1c6eee1952c2ee085b7db7b518
Autor:
M. Yılmaz, Şeyma Çalışkan, Hakan Volkan Şenavci, Özgür Baştürk, I. Özavcı, T. Kilicoglu, C. T. Tezcan
Publikováno v:
Open Astronomy, Vol 23, Iss 2, Pp 123-135 (2014)
We present the simultaneous light and radial velocity curve analysis of two contact binaries in Pegasus using the Wilson-Devinney code. The following absolute astrophysical parameters are determined: masses, radii and effective temperatures. BB Peg i
Autor:
Hakan Volkan Şenavci, Emre Işık, I. Özavcı, Gaitee A. J. Hussain, Selim O. Selam, Douglas O'Neal, M. Yılmaz
Publikováno v:
Proceedings of the International Astronomical Union. 13:235-236
Using high-precision photometry from the \textit{Kepler} mission, we investigate patterns of spot activity on the K1-type subgiant component of KIC 11560447, a short-period late-type eclipsing binary. We tested the validity of maximum entropy reconst