Results 61 to 70 of about 1,027 (203)

The ELM Survey South. II. Two Dozen New Low-mass White Dwarf Binaries

The Astrophysical Journal, 2023
We present the results from our ongoing spectroscopic survey targeting low-mass white dwarf binaries, focusing on the southern sky. We used a Gaia DR2- and eDR3-based selection and identified 28 new binaries, including 19 new extremely low-mass (ELM ...
Alekzander Kosakowski, Warren R. Brown, Mukremin Kilic, Thomas Kupfer, Antoine Bédard, A. Gianninas, Marcel A. Agüeros, Manuel Barrientos   +7 more
doaj   +1 more source

Short-period Heartbeat Binaries from TESS Full-frame Images

The Astrophysical Journal Supplement Series
We identify 240 short-period ( P ≲ 10 days) binary systems in Transiting Exoplanet Survey Satellite data, 180 of which are heartbeat binaries. The sample is mostly a mix of A- and B-type stars and primarily includes eclipsing systems, where over 30% of ...
Siddhant Solanki, Agnieszka M. Cieplak, Jeremy Schnittman, John G. Baker, Thomas Barclay, Richard K. Barry, Veselin Kostov, Ethan Kruse, Greg Olmschenk, Brian P. Powell, Stela Ishitani Silva, Guillermo Torres   +11 more
doaj   +1 more source

The New Version of the Binary Star Database (BDB)

Open Astronomy, 2012
The Binary star database contains data on about 100 000 stellar systems of multiplicity 2 to 22, taken from a large variety of published catalogues for all types of binary stars: visual, orbital, astrometric, interferometric, spectroscopic, photometric ...
Kaygorodov P., Debray B., Kolesnikov N., Kovaleva D., Malkov O.   +4 more
doaj   +1 more source

EVOLUTIONARY EFFECTS IN CLOSE BINARIES: ANALYSIS OF THE DISTRIBUTION OF ORBITAL ECCENTRICITIES

Odessa Astronomical Publications, 2017
Dependencies of orbital eccentricity e on orbital periods P in close binary systems (CBS) of different masses and ages, being at the Main Sequence (DMS) and being eclipsing binary stars (EBS), are reviewed.
A. M. Cherepashchuk, V. G. Karetnikov
doaj   +1 more source

Detection of Semidetached Eclipsing Binaries from TESS

The Astronomical Journal
Semidetached binaries, distinguished by their mass transfer phase, play a crucial role in elucidating the physics of mass transfer within interacting binary systems.
Xu Ding, KaiFan Ji, QiYuan Cheng, ZhiMing Song, JinLiang Wang, XueFen Tian, ChuanJun Wang   +6 more
doaj   +1 more source

New times of minima of some eclipsing binary stars

Information Bulletin on Variable Stars, 2017
We present several CCD minima observations of eclipsing binaries.
Bulut, I., Kabas, A., Nehir, C., Allak, S., Neslihan, K., Yilan, E., Dogan, M., Gunes, M., Bulut, A., Demircan, O.   +9 more
openaire   +6 more sources

TIC 290061484: A Triply Eclipsing Triple System with the Shortest Known Outer Period of 24.5 Days

The Astrophysical Journal
We have discovered a triply eclipsing triple-star system, TIC 290061484, with the shortest known outer period, P _out , of only 24.5 days. This “eclipses” the previous record set by λ Tauri at 33.02 days, which held for 68 yr.
V. B. Kostov, S. A. Rappaport, T. Borkovits, B. P. Powell, R. Gagliano, M. Omohundro, I. B. Bíró, M. Moe, S. B. Howell, T. Mitnyan, C. A. Clark, M. H. Kristiansen, I. A. Terentev, H. M. Schwengeler, A. Pál, A. Vanderburg   +15 more
doaj   +1 more source

Precision Timing of Eclipsing Binaries from TESS Full Frame Images: Method and Performance

The Astrophysical Journal
Several hundreds of thousands of eclipsing binaries (EBs) are expected to be detected in the Transiting Exoplanet Survey Satellite (TESS) full frame images (FFIs).
Frédéric Marcadon, Andrej Prša
doaj   +1 more source

Radial velocity and light curves analysis of the eclipsing binary NN Vir

Odessa Astronomical Publications, 2017
The eclipsing binary NN Vir is a short period system showing an EW-type light curve. Photometric Observations of NN Vir were done by Gomez-Ferrellad & Garcia-Melendo (1997) at Esteve Duran Observatory.
R. Pazhouhesh, E. G. Melendo
doaj   +1 more source

The Discovery of Two Quadruple Star Systems with the Second and Third Shortest Outer Periods

The Astrophysical Journal
We present the discovery of two quadruple star systems—TIC 285853156 and TIC 392229331—each consisting of two bound eclipsing binary stars. Among the most compact quadruples known, TIC 392229331 and TIC 285853156 have the second and third shortest outer ...
Brian P. Powell, Guillermo Torres, Veselin B. Kostov, Tamás Borkovits, Saul A. Rappaport, Maxwell Moe, David W. Latham, Thomas L. Jacobs, Robert Gagliano, Martti H. K. Kristiansen, Mark Omohundro, Hans M. Schwengeler, Daryll M. LaCourse, Ivan A. Terentev, Allan R. Schmitt   +14 more
doaj   +1 more source