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Related papers: A search for eclipsing binaries that host discs

200 papers

The analysis of the first three years of the OGLE data revealed 12 microlensing events of the Galactic bulge stars, with the characteristic time scales in the range $ 8.6 < t_0 < 80 $ days, where $ t_0 = R_E / V $. A complete sample of nine…

As part of a stellar population sampling program, a series of photometric probes at various field sizes and depths have been obtained in a low extinction window in the galactic anticentre direction. Such data set strong constraints on the…

Astrophysics · Physics 2009-10-22 Annie C. Robin , Michel Creze , Vijay Mohan

In a recent series of papers, supermassive black holes were used to discern pathways in galaxy evolution. By considering the black holes' coupling with their host galaxy's bulge/spheroid, the progression of mass within each component has…

Astrophysics of Galaxies · Physics 2025-01-20 Alister W. Graham

We investigate the nature of OGLE05155332-6925581, one of the brightest members of the enigmatic group of Double Periodic Variables (DPVs) recently found in the Magellanic Clouds. The modeling of archival orbital light curves (LCs), along…

The detection of O- and B-type stars with extremely low-mass companions is very important for understanding the formation and evolution of binary stars. However, their finding remains a challenge because the low-mass components in such…

Solar and Stellar Astrophysics · Physics 2024-09-17 Linfeng Chang , Shengbang Qian , Lei Zang , Fuxing Li

Photometric observations in the R and I bands of the detached M-type double-lined eclipsing binary CU Cnc have been acquired and analysed. The photometric elements obtained from the analysis of the light curves have been combined with an…

Astrophysics · Physics 2009-11-07 I. Ribas

Discs in long-period eclipsing binary systems are rare and can lead to extraordinary eclipsing events. ZTF J185259.31+124955.2 was identified as a candidate disc-eclipsing system through a continuing search programme of ZTF variables with a…

Solar and Stellar Astrophysics · Physics 2024-08-07 Klaus Bernhard , Christopher Lloyd

We present detailed analyses of updated eclipse timing diagrams for 32 contact binary merger candidates in the Galactic bulge. The photometric data was obtained from 2016 to 2021 using the Korea Microlensing Telescope Network (KMTNet) with…

Solar and Stellar Astrophysics · Physics 2025-03-25 Kyeongsoo Hong , Jae Woo Lee , Dong-Jin Kim , Jang-Ho Park , Hye-Young Kim , Pakakaew Rittipruk , Cheongho Han

The $\textit{Herschel}$ DEBRIS, DUNES and GT programmes observed 37 exoplanet host stars within 25 pc at 70, 100 and 160 $\mu$m with the sensitivity to detect far-infrared excess emission at flux density levels only an order of magnitude…

We present an algorithm that can detect blends of bright stars with fainter, un-associated eclipsing binaries. Such systems contaminate searches for transiting planets, in particular in crowded fields where blends are common. Spectroscopic…

Astrophysics · Physics 2009-11-10 Henk Hoekstra , Yanqin Wu , Andrzej Udalski

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

The status of our work on binary classical cepheid systems in the Large Magellanic Cloud is presented. We report on results from our follow up of two eclipsing binary cepheids OGLE-LMC-CEP-0227 and OGLE-LMC-CEP-1812. Here we presented for…

Solar and Stellar Astrophysics · Physics 2014-07-08 D. Graczyk , B. Pilecki , G. Pietrzyński , W. Gieren , P. Konorski , I. Soszyński , A. Udalski , A. Gallenne

The available photometry from the online databases were used for the first light curve analysis of eight eclipsing binary systems EI Aur, XY Dra, BP Dra, DD Her, VX Lac, WX Lib, RZ Lyn, and TY Tri. All these stars are of Algol-type, having…

Solar and Stellar Astrophysics · Physics 2015-08-05 P. Zasche

EROS (Exp\'erience de Recherche d'Objets Sombres) has been monitoring the luminosity of 4 million stars in the Large Magellanic Cloud in order to search for gravitational microlensing by unseen objects in the galactic halo. We present here…

Astrophysics · Physics 2008-02-03 R. Ansari

We report on the search for new eclipsing white dwarf plus main-sequence (WDMS) binaries in the light curves of the Catalina surveys. We use a colour selected list of almost 2000 candidate WDMS systems from the Sloan Digital Sky Survey,…

Multi-color OGLE survey light curves of about 20 years duration are analyzed for about 3000 classical Be stars in the Large and Small Magellanic Clouds (LMC, SMC) in order to study the properties and variability. Each light curve was…

Solar and Stellar Astrophysics · Physics 2025-05-14 A. L. Figueiredo , A. C. Carciofi , J. Labadie-Bartz , M. L. Pinho , T. H. de Amorin , P. T. dos Santos , I. Soszyński , A. Udalski

V383Sco was discovered to be an eclipsing binary at the beginning of the XX century. This system has one of the longest orbital periods known (13.5yr) and was initially classified as a zet_Aur-type variable. It was then forgotten for…

By cross-matching the eclipsing binary catalog provided by Prsa et al. (2022) with LAMOST medium resolution spectra, we obtained 11 targets. Combining light and radial velocity curves analysis, we have derived accurate physical parameters…

Solar and Stellar Astrophysics · Physics 2026-02-23 Yani Guo , Kai Li , Yanke Tang , Xiang Gao , Qiqi Xia , Liheng Wang , Meng Guo

Motivated by the detection of a recent outburst of the massive luminous blue variable LMC-R71, which reached an absolute magnitude M_V = -9.3 mag, we undertook a systematic study of the optical variability of 1268 massive stars in the Large…

Solar and Stellar Astrophysics · Physics 2015-03-13 D. M. Szczygiel , K. Z. Stanek , A. Z. Bonanos , G. Pojmanski , B. Pilecki , J. L. Prieto

We present a $\approx 11.5$ year adaptive optics (AO) study of stellar variability and search for eclipsing binaries in the central $\sim 0.4$ pc ($\sim 10''$) of the Milky Way nuclear star cluster. We measure the photometry of 563 stars…