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This paper is the first part of the Catalog of Periodic Variable Stars in the Galactic bulge. The Catalog is based on observations collected during the OGLE microlensing search. 213 periodic variable stars brighter than I=18 mag: 31…

Astrophysics · Physics 2016-08-30 A. UDALSKI , M. KUBIAK , M. SZYMANSKI , J. KALUZNY , M. MATEO , W. KRZEMINSKI

During the past 20 years, the idea that non-spherical planetary nebulae (PN) may need a binary or planetary interaction to be shaped was discussed by various authors. It is now generally agreed that the varied morphologies of PN cannot be…

The second version of the catalog contains information about 275 stars of different types. During the time that has elapsed since the creation of the first catalog, situation fundamentally changed primarily due to the significant increase…

Solar and Stellar Astrophysics · Physics 2016-12-06 V. D. Bychkov , L. V. Bychkova , J. Madej

We have created a catalogue of variable stars found from a search of the publicly available K2 mission data from Campaigns 1 and 0. This catalogue provides the identifiers of 8395 variable stars, including 199 candidate eclipsing binaries…

Solar and Stellar Astrophysics · Physics 2015-06-29 D. J. Armstrong , J. Kirk , K. W. F. Lam , J. McCormac , S. R. Walker , D. J. A. Brown , H. P. Osborn , D. L. Pollacco , J. Spake

We have conducted a wide-field photometric survey in a single 52'x52' field towards the Lupus Galactic Plane in an effort to detect transiting Hot Jupiter planets. The planet Lupus-TR-3b was identified from this work. The dataset also led…

Astrophysics · Physics 2009-11-13 David T. F. Weldrake , Daniel D. R. Bayliss

Photometric data from the ASAS - South (declination less than 29 deg) survey have been used for identification of bright stars located near the sources from the ROSAT All Sky Survey Bright Source Catalog (RBSC). In total 6028 stars brighter…

Solar and Stellar Astrophysics · Physics 2012-04-18 M. Kiraga

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…

ASAS is a long term project to monitor bright variable stars over the whole sky. It has discovered 50,122 variables brighter than V < 14 mag south of declination +28 degrees, and among them 11,099 eclipsing binaries. We present a…

Astrophysics · Physics 2009-11-11 B. Paczynski , D. Szczygiel , B. Pilecki , G. Pojmanski

We have compiled a catalogue of eclipsing variable stars, the largest catalogue, containing classified eclipsing binaries. A procedure for the classification of eclipsing binaries, based on the catalogued data, is also developed. It was…

Solar and Stellar Astrophysics · Physics 2013-06-20 Oleg Malkov , Ekaterina Avvakumova

We report follow-up studies of 35 recently-discovered cataclysmic variables (CVs), 32 of which were found in large, automated synoptic sky surveys. The objects were selected for observational tractability. For 34 of the objects we present…

Solar and Stellar Astrophysics · Physics 2016-12-14 John R. Thorstensen , Erek H. Alper , Kathryn E. Weil

The Kepler Mission has provided unprecedented, nearly continuous photometric data of $\sim$200,000 objects in the $\sim$105 deg$^{2}$ field of view from the beginning of science operations in May of 2009 until the loss of the second…

Photospheric parameters and abundances are presented for a sample of single-lined chromospherically active binaries from a differential LTE analysis of high-resolution spectra. Abundances have been derived for 13 chemical species, including…

Astrophysics · Physics 2009-11-10 T. Morel , G. Micela , F. Favata , D. Katz , I. Pillitteri

In light of substantial new discoveries of hot subdwarfs by ongoing spectroscopic surveys and the availability of new all-sky data from ground-based photometric surveys and the Gaia mission Data Release 2, we compiled an updated catalogue…

Solar and Stellar Astrophysics · Physics 2020-04-08 S. Geier

We have compiled the first all-sky mid-infrared variable-star catalog based on Wide-field Infrared Survey Explorer (WISE) five-year survey data. Requiring more than 100 detections for a given object, 50,282 carefully and robustly selected…

Solar and Stellar Astrophysics · Physics 2018-08-08 Xiaodian Chen , Shu Wang , Licai Deng , Richard de Grijs , Ming Yang

A consensus has been reached in recent years that binarity plays an important role in the formation and evolution of a significant fraction of planetary nebulae (PNe). Utilizing the archived photometric data from the Zwicky Transient…

Solar and Stellar Astrophysics · Physics 2025-01-13 Pinjian Chen , Xuan Fang , Xiaodian Chen , Jifeng Liu

The number of known periodic variable stars has increased rapidly in recent years. As an all-sky transit survey, the Transiting Exoplanet Survey Satellite (TESS) plays an important role in detecting low-amplitude variable stars. Using…

Solar and Stellar Astrophysics · Physics 2024-12-10 Xinyi Gao , Xiaodian Chen , Shu Wang , Jifeng Liu

A new classification system for carbon-rich stars is presented based on an analysis of 51 AGB carbon stars through the most relevant classifying indices available. The extension incorporated, that also represents the major advantage of this…

Progress in understanding the formation and evolution of planetary nebulae (PN) has been restricted by a paucity of well-determined central star masses. To address this deficiency we aim to (i) significantly increase the number of known…

Astrophysics · Physics 2008-09-16 B. Miszalski , A. Acker , A. F. J. Moffat , Q. A. Parker , A. Udalski

Among the 120 000 objects in the Hipparcos catalogue, only 235 were fitted with an orbital model. Besides these 235 original astrometric binaries, most Hipparcos entries with a known spectroscopic orbit (extrasolar planet or stellar…

Astrophysics · Physics 2007-05-23 D. Pourbaix , S. Jancart , A. Jorissen

The most accurate stellar astrophysical parameters were collected from the solutions of the light and the radial velocity curves of 257 detached double-lined eclipsing binaries in the Milky Way. The catalogue contains masses, radii, surface…

Solar and Stellar Astrophysics · Physics 2015-06-19 Z. Eker , S. Bilir , F. Soydugan , E. Yaz Gokce , E. Soydugan , M. Tuysuz , T. Senyuz , O. Demircan
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