Search Results - "Selam, S."

Medium-resolution Isaac Newton Telescope library of empirical spectra by Sánchez-Blázquez, P., Peletier, R. F., Jiménez-Vicente, J., Cardiel, N., Cenarro, A. J., Falcón-Barroso, J., Gorgas, J., Selam, S., Vazdekis, A.

“…A new stellar library developed for stellar population synthesis modelling is presented. The library consists of 985 stars spanning a large range in…”
Get full text

Medium-resolution Isaac Newton Telescope library of empirical spectra – II. The stellar atmospheric parameters by Cenarro, A. J., Peletier, R. F., Sánchez–Blázquez, P., Selam, S. O., Toloba, E., Cardiel, N., Falcón–Barroso, J., Gorgas, J., Jiménez-Vicente, J., Vazdekis, A.

“…We present a homogeneous set of stellar atmospheric parameters (Teff, log g, [Fe/H]) for MILES, a new spectral stellar library covering the range λλ 3525–7500…”
Get full text

A review of current knowledge and research priorities for conservation of lentic biodiversity in tropical wet and monsoonal urban landscapes by Gebreselassie, Selam S., Lechner, Alex M., Hill, Matthew J., Teo, Fang Yenn, Gibbins, Christopher N.

“…Urban expansion is a major threat to diversity, especially in rapidly developing tropical countries where urban areas are growing at great pace and protection…”
Get full text

Recurrent star-spot activity and differential rotation in KIC 11560447 by Özavcı, İ, Şenavcı, H V, Işık, E, Hussain, G A J, O'Neal, D, Yılmaz, M, Selam, S O

“…Abstract We present a detailed analysis of surface inhomogeneities on the K1-type subgiant component of the rapidly rotating eclipsing binary KIC 11560447,…”
Get full text

A simultaneous spectroscopic and photometric study of two eclipsing binaries: V566 Oph and V972 Her by Selam, S. O., Esmer, E. M., Şenavcı, H. V., Bahar, E., Yörükoğlu, O., Yılmaz, M., Baştürk, Ö.

“…In this study, we have performed simultaneous solutions of light and radial velocity curves of two eclipsing binary systems, V566 Oph and V972 Her. We observed…”
Get full text

Monitoring Secular Orbital Period Variations of Some Eclipsing Binaries at the Ankara University Observatory by Yuece, K, Selam, SO, Albayrak, B, Ak, T

“…Issue Title: Close Binaries in the 21st Century: New Opportunities and Challenges This study concerns the long-term monitoring of the secular variation…”
Get full text

Physical parameters of some close binaries: ET Boo, V1123 Tau, V1191 Cyg, V1073 Cyg and V357 Peg by Ekmekçi, F., Elmaslı, A., Yılmaz, M., Kılıçoğlu, T., Tanrıverdi, T., Baştürk, Ö., Şenavcı, H.V., Çalışkan, Ş., Albayrak, B., Selam, S.O.

“…► We present new BVR CCD photometry of five eclipsing binaries, namely ET Boo, V1123 Tau, V1191 Cyg, V1073 Cyg and V357 Peg. ► We made simultaneous light and…”
Get full text

Extrasolar planet searches at the TUG: Test observations and capabilities by Yılmaz, M., Selam, S.O., Sato, B., Izumiura, H., Bikmaev, I., Ando, H., Kambe, E., Keskin, V.

“…► We started a extrasolar planet search survey at Turkish National Observatory. ► I2-cell was successfully installed to the Coude Echelle Spectrograph at…”
Get full text

The Period Variation of V839 Oph by Senavci, H V, Albayrak, B, Selam, SO, Ak, T

“…Issue Title: Close Binaries in the 21st Century: New Opportunities and Challenges In this study we present the results of the preliminary analysis of the…”
Get full text

Possible Light-Time Effect in the Eclipsing Binary System TY Boo by Elmasli, A, Selam, SO, Albayrak, B, Oezuyar, D

“…Issue Title: Close Binaries in the 21st Century: New Opportunities and Challenges The O - C diagram for the eclipsing binary system TY Boo was constructed with…”
Get full text

Monitoring Possible Light-Time Effect in the Orbital Period of Some Eclipsing Binaries at the Ankara University Observatory by Albayrak, B, Selam, SO, Yuece, K, Helvaci, M, Ak, T

“…Issue Title: Close Binaries in the 21st Century: New Opportunities and Challenges A significant number of close binaries are known to be members of physically…”
Get full text

A new light-time effect study of TX Herculis by Ak, T, Albayrak, B, Selam, S.O, Tanrıverdi, T

“…A period study of the binary system TX Her based on the extensive series of minima times covering almost a century (95 years) indicates the periodic O–C…”
Get full text

A photometric study of eclipsing binary V351 Pegasi by Albayrak, B., Djurašević, G., Selam, S.O., Atanacković-Vukmanović, O., Yılmaz, M.

“…Photoelectric BVR light curves of the recently discovered eclipsing binary V351 Peg were studied for the first time to derive the physical parameters of the…”
Get full text

DN Bootis: A low mass-ratio W UMa-type contact binary by Şenavcı, H.V., Nelson, R.H., Özavcı, İ., Selam, S.O., Albayrak, B.

“…New photoelectric BVR light curves and radial velocity curves were obtained for the HIPPARCOS discovery DN Boo at the TÜBİTAK 1 TÜBİTAK: The Scientific and…”
Get full text

Photometric Solution of the Eclipsing Binary V351 Pegasi by Albayrak, B, Djurasevic, G, Selam, S, Yilmaz, M, Erkapic, S, Aksu, O, Tanriverdi, T

“…BVR light curves of the recently discovered eclipsing binary V351 Peg were studied to derive the preliminary physical parameters of the system. The light…”
Get full text

First Ground-Based Photometry and Light Curve Analysis of the Recently Discovered Contact Binary Hx Uma by Selam, S, Albayrak, B, Yilmaz, M, Senavci, H V, Oezavci, I, Cetintas, C

“…Photoelectric UBV light curves of the recently discovered eclipsing binary HX UMa were obtained and studied to determine the preliminary physical parameters of…”
Get full text

Monitoring spots via the TESS data strengthened by the ETV behaviour: An investigation on the contact binary PP Lac by Yılmaz, M., Şenavcı, H.V., Bahar, E., Özavcı, İ., Nelson, R.H., Selam, S.O., Zola, S., Gazeas, K.

“…In this study we aim to reveal the starspot behaviour in the contact binary PP Lac, using the clues from the eclipse timing variation (ETV) nature of the…”
Get full text

A photometric study of the recently discovered eclipsing binary V776 Cassiopei by Djurašević, G, Albayrak, B, Selam, S.O, Erkapić, S, Şenavcı, H.V

“…Photoelectric UBV light curves of the recently discovered eclipsing binary V776 Cas were studied for the first time to derive the physical parameters of the…”
Get full text

A Jupiter-mass planet around the K0 giant HD 208897 by Yılmaz, M, Sato, B, Bikmaev, I, Selam, S. O, Izumiura, H, Keskin, V, Kambe, E, Melnikov, S. S, Galeev, A, Özavcı, İ, Irtuganov, E. N, Zhuchkov, R. Ya

“…A&A 608, A14 (2017) 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…”
Get full text

Light curve solution and orbital period analysis of the contact binary V842 Herculis by Selam, S. O., Albayrak, B., Şenavci, H. V., Aksu, O.

“…New photoelectric BV light curves were obtained for the neglected eclipsing binary V842 Her at the TÜBİTAK National Observatory (TUG) and studied for the first…”
Get full text