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We present the orbital and physical parameters of a newly discovered low-mass detached eclipsing binary from the All-Sky Automated Survey (ASAS) database: ASAS J011328-3821.1 A - a member of a visual binary system with the secondary…

We present the observational results of this kind of rare object 1SWASP J093010.78+533859.5, for which the doubly eclips- ing feature had been detected previously from the SuperWASP photometric archive. Individual PSF photometry for two…

太阳与恒星天体物理 · 物理学 2015-06-18 Jae-Rim Koo , Jae Woo Lee , Byeong-Cheol Lee , Seung-Lee Kim , Chung-Uk Lee , Kyeongsoo Hong , Dong-Joo Lee , Soo-Chang Rey

We present absolute physical and orbital parameters for three double-lined detached eclipsing binary systems from the All Sky Automated Survey (ASAS) catalogue with subgiant and giant components. These parameters were derived from archival…

太阳与恒星天体物理 · 物理学 2013-06-21 M. Ratajczak , K. G. Hełminiak , M. Konacki , A. Jordan

We have analyzed the double-lined eclipsing binary system ASAS J180057-2333.8 from the All Sky Automated Survey (ASAS) catalogue . We measure absolute physical and orbital parameters for this system based on archival $V$-band and $I$-band…

Oscillating Algol-type eclipsing binaries (oEA) are very interesting objects that have three observational features of eclipse, pulsation, and mass transfer. Direct measurement of their masses and radii from the double-lined radial velocity…

太阳与恒星天体物理 · 物理学 2016-03-16 Jae-Rim Koo , Jae Woo Lee , Kyeongsoo Hong , Seung-Lee Kim , Chung-Uk Lee

Eclipsing binary systems play a vital role in astrophysics, as they provide a direct means of measuring fundamental stellar parameters. By combining high-precision space-based observations with ground-based multicolor photometric data,…

太阳与恒星天体物理 · 物理学 2025-06-12 N. Alan , M. Alpsoy , Y. Kilic

ASAS photometric observations of LS 1135, an O-type SB1 binary system with an orbital period of 2.7 days, show that the system is also eclipsing. This prompted us to re-examine the spectra used in the previously published spectroscopic…

天体物理学 · 物理学 2009-11-11 E. Fernandez Lajus , V. S. Niemela;

We analyse new spectra of the multiple system SZ Cam because previous studies found different values of the primary radial velocity amplitude. The older solutions of light curves also have different ratios of secondary to primary luminosity…

太阳与恒星天体物理 · 物理学 2015-05-20 Pavel Mayer , Horst Drechsel , Jiří Kubát , Miroslav Šlechta

By cross-matching the eclipsing binary catalog from TESS with that from LAMOST MRS, semi-detached eclipsing binaries with radial velocities coverage spanning more than 0.3 phases were authenticated. The absolute parameters for these systems…

太阳与恒星天体物理 · 物理学 2024-12-11 Yajuan Lei , Guiping Zhou , Liang Wang , Guangwei Li , Kai Li , Tuan Yi

We present a detailed analysis of the detached eclipsing binary system HO Telescopii, which contains two A-type stars in a circular orbit of period 1.613 d. We use light curves from the Transiting Exoplanet Survey Satellite (TESS), which…

太阳与恒星天体物理 · 物理学 2024-08-26 John Southworth

Double-lined eclipsing binaries allow the direct determination of masses and radii, which are key to test stellar models. With the launch of the TESS mission, many well-known eclipsing binaries have been observed at higher photometric…

太阳与恒星天体物理 · 物理学 2022-09-07 D. Baroch , A. Giménez , J. C. Morales , I. Ribas , E. Herrero , V. Perdelwitz , C. Jordi , T. Granzer , C. Allende Prieto

EX Hya is one of the few double-lined eclipsing cataclysmic variables that allow an accurate measurement of the binary masses. We analyze orbital phase-resolved UVES/ VLT high resolution spectroscopic observations of EX Hya with the aims of…

天体物理学 · 物理学 2008-02-19 K. Beuermann , K. Reinsch

HD~5501, a hitherto little studied eclipsing binary with an early A-type primary, has been caught in a short-lived, astrophysically interesting phase of its binary evolution. Recent photometric and spectroscopic observations, including…

We present an analysis of BS Dra, a detached eclipsing binary containing two almost-identical F3 V stars in a 3.36-d circular orbit, based on 40 sectors of observations from the Transiting Exoplanet Survey Satellite (TESS) and published…

太阳与恒星天体物理 · 物理学 2026-03-13 John Southworth

Starting from more than 11,200 short-period (less than 0.5 days) EW-type eclipsing binary candidates with the All-Sky Automated Survey for Supernovae (ASAS-SN) V-band light curves, we use MCMC and neural networks (NNs) to obtain the mass…

太阳与恒星天体物理 · 物理学 2024-01-30 Xu-Zhi Li , Qing-Feng Zhu , Xu Ding , Xiao-Hui Xu , Hang Zheng , Jin-Sheng Qiu , Ming-Chao Liu

We present an analysis of a new, detached, double-lined eclipsing binary system with K7 Ve components, discovered as part of the University of New South Wales Extrasolar Planet Search. The object is significant in that only 6 other binary…

天体物理学 · 物理学 2007-05-23 T. B. Young , M. G. Hidas , J. K. Webb , M. C. B. Ashley , J. L. Christiansen , A. Derekas , C. Nutto

Using high-precision photometric data from TESS, medium resolution spectroscopic data from LAMOST, and long-term eclipse timings, we provide orbital parameters for two early-type detached eclipsing binary systems: TYC 3740-2072-1 and TYC…

太阳与恒星天体物理 · 物理学 2025-05-28 Peng-Fei Ye , Kai Li , Fei Liu , Xiang Gao , Jing-Yi Wang

OO Aql is a rare W UMa-type eclipsing binary in which the two solar-type stars may have only recently evolved into contact. The binary has an unusually high mass ratio (0.84), and a relatively long orbital period (0.506 d) for it spectral…

天体物理学 · 物理学 2009-10-31 Bruce J. Hrivnak , Edward F. Guinan , Laurence E. DeWarf , Ignasi Ribas

We present the orbital solution of a peculiar double-lined spectroscopic and eclipsing binary system, 2M17091769+3127589. This solution was obtained by a simultaneous fit of both APOGEE radial velocities and TESS and ASAS-SN light curves to…

太阳与恒星天体物理 · 物理学 2021-09-29 Annaliese Miller , Marina Kounkel , Meng Sun , Don Dixon , Chase Boggio , K. R. Covey , Keivan G. Stassun , Robert Mathieu

ZZ UMa is a detached eclipsing binary with an orbital period of 2.299 d that shows total eclipses and starspot activity. We used five sectors of light curves from the Transiting Exoplanet Survey Satellite (TESS) and two published sets of…

太阳与恒星天体物理 · 物理学 2022-10-11 John Southworth