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Related papers: The O-type eclipsing binary SZ Cam revisited

200 papers

Abridged. Eclipsing spectroscopic double-lined binaries are the prime source of precise and accurate measurements of masses and radii of stars. These measurements provide a stringent test of models of stellar evolution that are persistently…

Solar and Stellar Astrophysics · Physics 2023-12-22 A. Tkachenko , K. Pavlovski , N. Serebriakova , D. M. Bowman , L. IJspeert , S. Gebruers , J. Southworth

We present a detailed V-band photometric light curve modeling of 30 eclipsing binaries using the data from Pietrukowicz et al. (2009) collected with the European Southern Observatory Very Large Telescope (ESO VLT) of diameter 8-m. The light…

We examine optical V-band light curves in luminous eclipsing black hole X-ray binaries, using a supercritical accretion/outflow model that is more realistic than the formerly used ones. In order to compute the theoretical light curve in the…

High Energy Astrophysical Phenomena · Physics 2015-05-18 Ken-ya Watarai , Jun Fukue

We combine the NLTE spectral analysis of the detached O-type eclipsing binary OGLE-LMC-ECL-06782 with the analysis of the radial velocity curve and light curve to measure an independent distance to the LMC. In our spectral analysis we study…

The light-time effect method, its limitations and applications were studied. A powerful combined method of simultaneous analysis of the O-C diagrams and astrometric orbit in triple eclipsing-astrometric binaries was presented. Eleven…

Astrophysics · Physics 2009-09-29 P. Zasche

Hipparcos photometric data for the massive O-type binary UW CMa were analysed within the framework of the Roche model. Photometric solutions were obtained for five mass ratios in the $q=M_2/M_1=0.5-1.5$ range. The system is found to be in a…

Solar and Stellar Astrophysics · Physics 2010-11-11 E. A. Antokhina , M. Srinivasa Rao , M. Parthasarathy

We present the first Doppler images of the active eclipsing binary system SZ Psc, based on the high-resolution spectral data sets obtained in 2004 November and 2006 September--December. The least-squares deconvolution technique was applied…

Solar and Stellar Astrophysics · Physics 2015-12-23 Yue Xiang , Shenghong Gu , A. Collier Cameron , J. R. Barnes , Liyun Zhang

We present a V light curve of the eclipsing binary system HV 2543 (Sk-67 117) in the Large Magellanic Cloud based on CCD images acquired between the years 1995 and 1998. We have analysed this light curve and published radial velocity data,…

Astrophysics · Physics 2007-05-23 P. G. Ostrov , E. Lapasset , N. I. Morrell

We describe a newly-discovered detached M-dwarf eclipsing binary system, the fourth such system known. This system was first observed by the TrES network during a long term photometry campaign of 54 nights. Analysis of the folded light…

Times of minima of eclipsing binary KIC 7023917 show quasiperiodic anti-symmetric deviations from the calculated one with an amplitude of up to 10 minutes and a period of 200 - 300 days. These changes correlate with the observed variations…

Solar and Stellar Astrophysics · Physics 2024-09-24 Pavol Gajdoš , Štefan Parimucha , Marek Skarka , Matúš Kamenec , Jozef Lipták , Raine Karjalainen

We present two-dimensional (radial velocity, orbital phase) spectroscopic results for the very low mass-ratio close binary AW UMa which strongly indicate that the spectroscopic mass ratio (q_sp = 0.10) does not agree with the…

Astrophysics · Physics 2009-11-13 Theodor Pribulla , Slavek M. Rucinski

In this paper, the first complete photometric light curves in the B, V, and R passbands for an eclipsing binary LO Com are presented, and the photometric solution for the LO Com is derived by analyzing these light curves by using the Wilson…

Solar and Stellar Astrophysics · Physics 2017-08-03 Y. Zhang , Q. W. Han , J. Z. Liu

In this paper we analyzed the light curve of the object KIC~3832716 observed during Kepler K1 mission. We showed that this previously known eclipsing binary is in fact quadruple system, in double eclipsing binary configuration on a long…

Solar and Stellar Astrophysics · Physics 2018-12-12 M. Fedurco , Š. Parimucha

The observations of eclipsing binary systems are of great importance in astrophysics, as they allow direct measurements of fundamental stellar parameters. By analysing high-quality space-based observations with ground-based photometric…

Solar and Stellar Astrophysics · Physics 2025-01-23 N. Alan , F. Alicavus , M. Alpsoy

We derive masses and radii for both components in the single-lined eclipsing binary HAT-TR-205-013, which consists of a F7V primary and a late M-dwarf secondary. The system's period is short, $P=2.230736 \pm 0.000010$ days, with an orbit…

We present new multiband CCD photometry for AA UMa made on 8 nights between January and March 2009; the $R$ light curves are the first ever compiled. Historical light curves, as well as ours, display partial eclipses and inverse O'Connell…

Solar and Stellar Astrophysics · Physics 2015-05-20 Jae Woo Lee , Chung-Uk Lee , Seung-Lee Kim , Ho-Il Kim , Jang-Ho Park

We report a catalog of 509 pairs identified among 10403 nearby galaxies with line-of-sight velocities V_LG < 3500 km/s.We selected binary systems in accordance with two criteria (bounding and temporal), which require the physical pair of…

Astrophysics · Physics 2008-12-18 I. D. Karachentsev , D. I. Makarov

Using multicolour photometry we have confirmed the binary nature of the new W-type W UMa eclipsing binary VSX J053024.8+842243 and established its primary eclipse ephemeris to be HJD = 2455924.38150(26) + 0.4322929(1) * E. Using the light…

Solar and Stellar Astrophysics · Physics 2018-04-04 D. R. S. Boyd

We present multi-epoch spectroscopic observations of the massive binary system WR21a, which include the January 2011 periastron passage. Our spectra reveal multiple SB2 lines and facilitate an accurate determination of the orbit and the…

Solar and Stellar Astrophysics · Physics 2015-11-18 F. Tramper , H. Sana , N. E. Fitzsimons , A. de Koter , L. Kaper , L. Mahy , A. Moffat

[ABRIDGED] AIMS: The MONOS project is collecting information and studying O-type spectroscopic binaries with delta > -20 deg. In this 2nd paper, we tackle the study of the 35 single-line spectroscopic binary (SB1) systems identified in the…

Solar and Stellar Astrophysics · Physics 2021-11-03 E. Trigueros Páez , R. H. Barbá , I. Negueruela , J. Maíz Apellániz , S. Simón-Díaz , G. Holgado