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A combination of high-resolution and wide-field imaging reveals two binary stars and one triple star system among the sample of the first 11 stars with planets detected by radial velocity variations. High resolution speckle or adaptive…

The first detailed photometric and spectroscopic analysis of the G-type eclipsing binary KM UMa is presented, which indicates that the system is a short-period detached eclipsing binary. The radial velocity curves were calculated using the…

Solar and Stellar Astrophysics · Physics 2024-10-10 Fangbin Meng , Liying Zhu , Nianping Liu , Ping Li , Jia Zhang , Linjia Li , Azizbek Matekov

The first multiband photometric solutions of the short-period V Gru eclipsing binary from the southern hemisphere is presented in this study. Light curves of the system were observed through BVI filters at the Congarinni Observatory in…

Solar and Stellar Astrophysics · Physics 2023-04-26 Mehmet Tanriver , Atila Poro , Ahmet Bulut , Ahmet Keskin , Mark G. Blackford

We report results from a search for Galactic high-mass eclipsing binaries. The photometric monitoring campaign was performed in Sloan $r$ and $i$ with the robotic twin refractor RoBoTT at the Universit\"atssternwarte Bochum in Chile and…

Solar and Stellar Astrophysics · Physics 2019-11-12 F. Pozo Nuñez , R. Chini , A. Barr Domínguez , Ch. Fein , M. Hackstein , Pietrzyński , Grzegorz , M. Murphy

We present time-series spectroscopy and photometry of Gaia DR2 6097540197980557440, a new deeply-eclipsing hot subdwarf B (sdB) + M dwarf (dM) binary. We discovered this object during the course of the Eclipsing Reflection Effect Binaries…

Solar and Stellar Astrophysics · Physics 2021-09-08 Kyle A. Corcoran , Brad N. Barlow , Veronika Schaffenroth , Uli Heber , Stephen Walser , Andreas Irgang

Photometric observations in V and I bands of six eclipsing binaries at the lower limit of the orbital periods of W UMa stars are presented. Three of them are newly discovered eclipsing systems. The light curve solutions revealed that all…

Solar and Stellar Astrophysics · Physics 2015-09-16 Diana P. Kjurkchieva , Dinko P. Dimitrov , Sunay I. Ibryamov

We present the search for eclipsing binaries with a pulsating component in the first catalogue of optically variable sources observed by OMC/INTEGRAL, which contains photometric data for more than 1000 eclipsing binaries. Five objects were…

We present interferometric observations of the Be star Zeta Tau obtained using the MIRC beam combiner at the CHARA Array. We resolved the disk during four epochs in 2007-2009. We fit the data with a geometric model to characterize the…

We present the first direct distance determination to a detached eclipsing binary in M33, which was found by the DIRECT Project. Located in the OB 66 association at coordinates (alpha, delta)=(01:33:46.17,+30:44:39.9) for J2000.0, it was…

We present 87 candidates for RR Lyrae variable stars in binary systems, based on our new search using the light-travel time effect (LTTE) and observed - calculated ($O-C$) diagrams in the Galactic bulge time-series photometry of the Optical…

We report the discovery of the first eclipsing detached double white dwarf (WD) binary. In a pulsation search, the low-mass helium core WD NLTT 11748 was targeted for fast (approx 1 minute) differential photometry with the Las Cumbres…

Solar and Stellar Astrophysics · Physics 2015-05-18 Justin D. R. Steinfadt , David L. Kaplan , Avi Shporer , Lars Bildsten , Steve B. Howell

The first observations conducted as part of the Chandra ACIS survey of M 33 (ChASeM33) sampled the eclipsing X-ray binary M 33 X-7 over a large part of the 3.45 d orbital period and have resolved eclipse ingress and egress for the first…

Gaia16aye was a binary microlensing event discovered in the direction towards the northern Galactic disc and was one of the first microlensing events detected and alerted to by the Gaia space mission. Its light curve exhibited five distinct…

Solar and Stellar Astrophysics · Physics 2020-01-22 Łukasz Wyrzykowski , P. Mróz , K. A. Rybicki , M. Gromadzki , Z. Kołaczkowski , M. Zieliński , P. Zieliński , N. Britavskiy , A. Gomboc , K. Sokolovsky , S. T. Hodgkin , L. Abe , G. F. Aldi , A. AlMannaei , G. Altavilla , A. Al Qasim , G. C. Anupama , S. Awiphan , E. Bachelet , V. Bakıs , S. Baker , S. Bartlett , P. Bendjoya , K. Benson , I. F. Bikmaev , G. Birenbaum , N. Blagorodnova , S. Blanco-Cuaresma , S. Boeva , A. Z. Bonanos , V. Bozza , D. M. Bramich , I. Bruni , R. A. Burenin , U. Burgaz , T. Butterley , H. E. Caines , D. B. Caton , S. Calchi Novati , J. M. Carrasco , A. Cassan , V. Cepas , M. Cropper , M. Chruślińska , G. Clementini , A. Clerici , D. Conti , M. Conti , S. Cross , F. Cusano , G. Damljanovic , A. Dapergolas , G. D'Ago , J. H. J. de Bruijne , M. Dennefeld , V. S. Dhillon , M. Dominik , J. Dziedzic , O. Ereceantalya , M. V. Eselevich , H. Esenoglu , L. Eyer , R. Figuera Jaimes , S. J. Fossey , A. I. Galeev , S. A. Grebenev , A. C. Gupta , A. G. Gutaev , N. Hallakoun , A. Hamanowicz , C. Han , B. Handzlik , J. B. Haislip , L. Hanlon , L. K. Hardy , D. L. Harrison , H. J. van Heerden , V. L. Hoette , K. Horne , R. Hudec , M. Hundertmark , N. Ihanec , E. N. Irtuganov , R. Itoh , P. Iwanek , M. D. Jovanovic , R. Janulis , M. Jelínek , E. Jensen , Z. Kaczmarek , D. Katz , I. M. Khamitov , Y. Kilic , J. Klencki , U. Kolb , G. Kopacki , V. V. Kouprianov , K. Kruszyńska , S. Kurowski , G. Latev , C-H. Lee , S. Leonini , G. Leto , F. Lewis , Z. Li , A. Liakos , S. P. Littlefair , J. Lu , C. J. Manser , S. Mao , D. Maoz , A. Martin-Carrillo , J. P. Marais , M. Maskoliūnas , J. R. Maund , P. J. Meintjes , S. S. Melnikov , K. Ment , P. Mikołajczyk , M. Morrell , N. Mowlavi , D. Moździerski , D. Murphy , S. Nazarov , H. Netzel , R. Nesci , C. -C. Ngeow , A. J. Norton , E. O. Ofek , E. Pakstienė , L. Palaversa , A. Pandey , E. Paraskeva , M. Pawlak , M. T. Penny , B. E. Penprase , A. Piascik , J. L. Prieto , J. K. T. Qvam , C. Ranc , A. Rebassa-Mansergas , D. E. Reichart , P. Reig , L. Rhodes , J. -P. Rivet , G. Rixon , D. Roberts , P. Rosi , D. M. Russell , R. Zanmar Sanchez , G. Scarpetta , G. Seabroke , B. J. Shappee , R. Schmidt , Y. Shvartzvald , M. Sitek , J. Skowron , M. Śniegowska , C. Snodgrass , P. S. Soares , B. van Soelen , Z. T. Spetsieri , A. Stankeviciūtė , I. A. Steele , R. A. Street , J. Strobl , E. Strubble , H. Szegedi , L. M. Tinjaca Ramirez , L. Tomasella , Y. Tsapras , D. Vernet , S. Villanueva , O. Vince , J. Wambsganss , I. P. van der Westhuizen , K. Wiersema , D. Wium , R. W. Wilson , A. Yoldas , R. Ya. Zhuchkov , D. G. Zhukov , J. Zdanavicius , S. Zoła , A. Zubareva

Eclipsing systems of massive stars allow one to explore the properties of their components in great detail. We perform a multi-wavelength, non-LTE analysis of the three components of the massive multiple system $\delta$ Ori A, focusing on…

Eta Carinae is considered to be a massive colliding wind binary system with a highly eccentric (e \sim 0.9), 5.54-yr orbit. However, the companion star continues to evade direct detection as the primary dwarfs its emission at most…

Solar and Stellar Astrophysics · Physics 2011-11-10 Thomas I. Madura , Theodore R. Gull , Jose H. Groh , Stanley P. Owocki , Atsuo Okazaki , D. John Hillier , Christopher Russell

Spatial gaseous structures in the Beta Lyrae system have been studied with the fact of change in the longitudinal component of the donor's magnetic field during the orbital period in mind. The investigation was based primarily on the study…

Solar and Stellar Astrophysics · Physics 2021-02-04 M. Yu. Skulskyy

Large surveys producing tera- and petabyte-scale databases require machine-learning and knowledge discovery methods to deal with the overwhelming quantity of data and the difficulties of extracting concise, meaningful information with…

Instrumentation and Methods for Astrophysics · Physics 2017-07-19 M. Süveges , F. Barblan , I. Lecoeur-Taïbi , A. Prša , B. Holl , L. Eyer , A. Kochoska , N. Mowlavi , L. Rimoldini

We present the first catalogue of eclipsing binaries in two MOA fields towards the Galactic bulge, in which over 8,000 candidates, mostly contact and semi-detached binaries of periods < 1 d, were identified. In this paper, the light curves…

We present reduced and calibrated high resolution Lyman-alpha (Lya) images for a sample of 6 local star forming galaxies. Targets were selected to represent a range in luminosity and metallicity and to include both known Lya emitters and…

1RXS J201607.0251645 is identified to be an eclipsing binary for the first time. We present the preliminary observations in V band with the 0.6-m telescope for three years and the extensive observations in V and R band with the 0.8-m…

Solar and Stellar Astrophysics · Physics 2010-02-04 Hua-Li Li , Yuan-Gui Yang , Wei Su , Hui-Juan Wang , Jian-Yan Wei