Search Results - "Soydugan, F."

Interrelated main-sequence mass–luminosity, mass–radius, and mass–effective temperature relations by Eker, Z, Bakış, V, Bilir, S, Soydugan, F, Steer, I, Soydugan, E, Bakış, H, Aliçavuş, F, Aslan, G, Alpsoy, M

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Empirical bolometric correction coefficients for nearby main-sequence stars in the Gaia era by Eker, Z, Soydugan, F, Bilir, S, Bakış, V, Aliçavuş, F, Özer, S, Aslan, G, Alpsoy, M, Köse, Y

“…ABSTRACT Nearby detached double-lined eclipsing binaries with most accurate data were studied and 290 systems were found with at least one main-sequence…”
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Standard stellar luminosities: what are typical and limiting accuracies in the era after Gaia? by Eker, Z, Soydugan, F, Bilir, S, Bakış, V

“…ABSTRACT Methods of obtaining stellar luminosities (L) have been revised and a new concept, standard stellar luminosity, has been defined. In this paper, we…”
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On the zero point constant of the bolometric correction scale by Eker, Z, Bakış, V, Soydugan, F, Bilir, S

“…ABSTRACT Arbitrariness attributed to the zero-point constant of the V-band bolometric corrections (BCV) and its relation to ‘bolometric magnitude of a star…”
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Identification of a new ultraluminous X-ray source in NGC 1316 by Allak, S, Akyuz, A, Aksaker, N, Ozdogan Ela, M, Avdan, S, Soydugan, F

“…ABSTRACT In this study, we report identification of a new ultraluminous X-ray source (ULX) named as X-7 in NGC 1316, with an unabsorbed luminosity of…”
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The transient ultraluminous X-ray source, ULX-4, in M51 by Allak, S, Akyuz, A, Akkaya Oralhan, İ, Avdan, S, Aksaker, N, Vinokurov, A, Soydugan, F, Sonbas, E, Dhuga, K S

“…ABSTRACT We present the results of a temporal and spectral analysis of the transient source ULX-4 in the galaxy M51. The data used were drawn from…”
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Nature of the oscillating semi-detached eclipsing binary system IO Ursae Majoris by Soydugan, F., Soydugan, E., Kanvermez, Ç., Liakos, A.

“…This paper presents results from analysing spectroscopic and multicolour photometric observations of the neglected semi-detached eclipsing binary system IO…”
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Angular momentum evolution of Algol binaries by İbanoǧlu, C., Soydugan, F., Soydugan, E., Dervişoǧlu, A.

“…We have compiled the well-determined absolute parameters of Algol-type binaries. The lists contain the parameters of 74 detached and 61 semidetached close…”
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A catalogue of chromospherically active binary stars (third edition) by Eker, Z., Ak, N. Filiz, Bilir, S., Doğru, D., Tüysüz, M., Soydugan, E., Bakış, H., Uğraş, B., Soydugan, F., Erdem, A., Demircan, O.

“…The catalogue of chromospherically active binaries (CABs) has been revised and updated. With 203 new identifications, the number of CAB stars is increased to…”
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A catalogue of close binaries located in the δ Scuti region of the Cepheid instability strip by Soydugan, E., Soydugan, F., Demircan, O., İbanoǧlu, C.

“…A catalogue of close eclipsing binary systems (detached and semidetached) with at least one of the components located in the δ Scuti region of the Cepheid…”
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SX Aurigae: A close binary at the early stage of contact phase by Öztürk, O., Soydugan, F., Çiçek, C.

“…•New multi-band CCD light curves of SX Aur have been obtained.•Orbital period changes were investigated and were found to exhibit a secular increase.•From…”
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The early-type near-contact binary system V337 Aql revisited by Tüysüz, M., Soydugan, F., Bilir, S., Soydugan, E., Şenyüz, T., Yontan, T.

“…•New BVR light curves of V337 Aql have been obtained.•Long-term orbital period variation of the system has been studied.•The multi-color light curves together…”
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The connection between the pulsational and orbital periods for eclipsing binary systems by Soydugan, E., İbanoğlu, C., Soydugan, F., Akan, M. C., Demircan, O.

“…Considering a sample of 20 eclipsing binary systems with δ Scuti type primaries, we discovered that there is a possible relation among the pulsation periods of…”
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The Galactic kinematics of cataclysmic variables by Ak, T., Bilir, S., Özdönmez, A., Soydugan, F., Soydugan, E., Püsküllü, Ç., Ak, S., Eker, Z.

“…Kinematical properties of CVs were investigated according to population types and orbital periods, using the space velocities computed from recently updated…”
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A comprehensive photometric study of the Algol-type eclipsing binary: BG Pegasi by Soydugan, E., Soydugan, F., Şenyüz, T., Püsküllü, Ç., Demircan, O.

“…This study presents new photometric observations of classical Algol type binary BG Peg with a δ Scuti component. The light curve modeling was provided with the…”
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A spectroscopic study of the Algol-type binaries S Equulei and KO Aquilae: absolute parameters and mass transfer by Soydugan, F., Frasca, A., Soydugan, E., Catalano, S., Demircan, O., İbanoǧlu, C.

“…We present and analyse high-resolution optical spectra of two Algol binaries, namely S Equ and KO Aql, obtained with the echelle spectrograph at Catania…”
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Period studies of classical Algol-type binaries II: UX Leo, RW Mon, EQ Ori, XZ UMa and AX Vul by Soydugan, F., Erdem, A., Doğru, S.S., Aliçavuş, F., Soydugan, E., Çiçek, C., Demircan, O.

“…This study presents an investigation of the orbital period variations of five Algol type binaries, UX Leo, RW Mon, EQ Ori, XZ UMa and AX Vul based on all…”
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The detached eclipsing binary TX Her revisited by Erdem, A., Aliçavuş, F., Soydugan, F., Doğru, S.S., Soydugan, E., Çiçek, C., Demircan, O.

“…This paper presents new CCD Bessell BVRI light curves and photometric analysis of the Algol-type binary star TX Her. The CCD observations were carried out at…”
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Period studies of five neglected Algol-type binaries: RW Cet, BO Gem, DG Lac, SW Oph and WY Per by Erdem, A., Doğru, S.S., Soydugan, F., Çiçek, C., Demircan, O.

“…We investigated the orbital period variations of five neglected Algol-type eclipsing binaries (RW Cet, BO Gem, DG Lac, SW Oph and WY Per) in this study. Their…”
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Semi-detached Algol type binaries with increasing orbital periods: Case studies of BD Vir, BO Gem, DG Lac, RW Cet, and RX Hya by Yıldırım, M.F., Soydugan, F.

“…This paper presents results from photometric investigations of five semi-detached binaries. Using the TESS and KEPLER (K2) databases, light curves of classical…”
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