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相关论文: Light Curve Analysis of the AP Dor Binary System u…

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We present seven light curves of the exoplanet system HAT-P-3, taken as part of a transit timing program using the RISE instrument on the Liverpool Telescope. The light curves are analysed using a Markov-Chain Monte-Carlo algorithm to…

地球与行星天体物理 · 物理学 2015-05-14 N. P. Gibson , D. Pollacco , S. Barros , C. Benn , D. Christian , M. Hrudková , Y. C. Joshi , F. P. Keenan , E. K. Simpson , I. Skillen , I. A. Steele , I. Todd

Detached eclipsing binaries are a fundamental tool for measuring the physical parameters of stars that are effectively evolving in isolation. Starting from more than 40,000 eclipsing binary candidates identified by the All-Sky Automated…

太阳与恒星天体物理 · 物理学 2022-09-21 D. M. Rowan , T. Jayasinghe , K. Z. Stanek , C. S. Kochanek , Todd A. Thompson , B. J. Shappee , T. W. -S. Holoien , J. L. Prieto , W. Giles

Low mass ratio systems (LMR) are a very interesting class of contact eclipsing binaries challenging the theoretical models of stability. These systems are also considered possible progenitors of the rare low-mass optical transients called…

太阳与恒星天体物理 · 物理学 2024-05-20 E. Lalounta , P. -E. Christopoulou , A. Papageorgiou , C. E. Ferreira Lopes , M. Catelan

Recent studies indicate that the physical properties of eclipsing binaries can be extracted from the derivatives of their light curves. A classification scheme for the derivatives of light curves would be helpful for identifying key…

太阳与恒星天体物理 · 物理学 2025-05-28 Shinjirou Kouzuma

AA Dor (LB 3459) is an eclipsing, close, single-lined, post common-envelope binary (PCEB) consisting of an sdOB primary star and an unseen secondary with an extraordinary small mass - formally a brown dwarf. The brown dwarf may have been a…

天体物理学 · 物理学 2007-05-23 Thomas Rauch , Klaus Werner

Three Algol-type binary systems (IO Cep, IM Cep and TX Ari) showing cyclic orbital period changes are studied. The combination of time of minimum data from the ground-based observations together with high precision photometric data from the…

太阳与恒星天体物理 · 物理学 2022-01-12 V. Bakış , Z. Eker , H. Bakış , S. Kayacı , G. Yücel , E. Tunç , O. Taşpınar , Y. Yalçın , A. Melnik , Ç. Esendağlı

We present a study of the third star orbiting around known contact eclipsing binary J04+25 using spectra from the LAMOST medium-resolution survey (MRS) and publicly available photometry. This is a rare case of a hierarchical triple, where…

太阳与恒星天体物理 · 物理学 2025-05-01 Mikhail Kovalev , Azizbek Matekov , Sufen Guo , Xuefei Chen , Zhanwen Han

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 present observations of a new low-mass double-lined eclipsing binary system discovered using repeat observations of the celestial equator from the Sloan Digital Sky Survey II. Using near-infrared photometry and optical spectroscopy we…

天体物理学 · 物理学 2010-04-29 Cullen H. Blake , Guillermo Torres , Joshua S. Bloom , B. Scott Gaudi

We present a catalog of 56 candidate intermediate mass eclipsing binary systems extracted from the 3rd data release of the All Sky Automated Survey. We gather pertinent observational data and derive orbital properties, including…

太阳与恒星天体物理 · 物理学 2015-05-27 S. J. Williams , D. R. Gies , J. W. Helsel , R. A. Matson , S. Caballero-Nieves

Eclipsing binaries (EBs) play an important astrophysical role in studying stellar properties and evolution. By analyzing photometric data in the LAMOST Medium-Resolution Survey field, RA: $23^h$$01^m$$51.00^s$, Dec:…

太阳与恒星天体物理 · 物理学 2024-12-03 Jing-Yi Wang , Kai Li , Xiang Gao , Di-Fu Guo , Li-Heng Wang , Dong-Yang Gao , Ling-Zhi Li , Ya-Ni Guo , Xing Gao , Guo-You Sun

We report the discovery of a relatively bright eclipsing binary system, which consists of a white dwarf and a main sequence K7 star with clear signs of chromospheric and spot activity. The light curve of this system shows $\sim0.2$mag…

A high fraction of massive stars are found to be binaries but only a few of them are reported as photometrically variable. By studying the populations of SB2 in the 30 Doradus region, we found a subset of them that have photometry from the…

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…

In recent years we have witnessed an explosion of photometric time-series data, collected for the purpose of finding a small number of rare sources, such as transiting extrasolar planets and gravitational microlenses. Once combed, these…

I calculate the physical properties of 32 transiting extrasolar planet and brown dwarf systems from existing photometric observations and measured spectroscopic parameters. The systems studied include fifteen observed by CoRoT, ten by…

地球与行星天体物理 · 物理学 2015-05-28 John Southworth

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…

太阳与恒星天体物理 · 物理学 2017-08-03 Y. Zhang , Q. W. Han , J. Z. Liu

We presented the multi-filter light curves of CSS_J154915.7+375506 inaugurally, which were observed by the 1.5 m AZT-22 telescope at Maidanak Astronomical Observatory. A low-resolution spectrum obtained by LAMOST reveals it is an A-type…

We present an overview of eclipsing systems of the HW-Virginis type, based on space observations from the TESS Mission. We perform a detailed analysis of the properties of AA Dor, which was monitored for almost a full year. This excellent…

太阳与恒星天体物理 · 物理学 2021-05-05 A. S. Baran , R. H. Østensen , U. Heber , A. Irrgang , S. Sanjayan , J. H. Telting , M. D. Reed , J. Ostrowski

Multiband CCD photometric observations of SZ Her were obtained between 2008 February and May. The light curve was completely covered and indicated a significant temperature difference between both components. The light-curve synthesis…

太阳与恒星天体物理 · 物理学 2015-06-03 Jae Woo Lee , Chung-Uk Lee , Seung-Lee Kim , Ho-Il Kim , Jang-Ho Park