Results 51 to 60 of about 1,027 (203)

Highlights on eclipsing binary variables from Araucaria Project

EPJ Web of Conferences, 2015
The Araucaria Project, which main goal is to provide precise determination of the cosmic distance scale, has recently made a set of discoveries involving variable stars in binary systems. Among these discoveries we highlight three: 1% precise measurement
Karczmarek Paulina, Pietrzyński Grzegorz, Gieren Wolfgang, Pilecki Bogumił, Graczyk Dariusz, Thompson Ian, Górski Marek, Konorski Piotr, Suchomska Ksenia, Nardetto Nicholas, Smolec Radoslaw   +10 more
doaj   +1 more source

KEPLER ECLIPSING BINARY STARS. VII. THE CATALOG OF ECLIPSING BINARIES FOUND IN THE ENTIRE KEPLER DATA SET [PDF]

The Astronomical Journal, 2016
ABSTRACT The primary Kepler Mission provided nearly continuous monitoring of ∼200,000 objects with unprecedented photometric precision. We present the final catalog of eclipsing binary systems within the 105 deg2 Kepler field of view. This release incorporates the full extent of the data from the primary mission (Q0-Q17
Susan E. Thompson, Jerome A. Orosz, Andrej Prsa, David W. Latham, Kelly Hambleton, Joshua Pepper, Tsevi Mazeh, Thomas Barclay, William F. Welsh, Matthew Garrett, Avi Shporer, Veselin B. Kostov, Arturo O. Martinez, Debra A. Fischer, Kian J. Jek, Steven Bloemen, Cole Johnston, Joanna Gore, Pantelis C. Thomadis, William J. Borucki, Kyle E. Conroy, Kyle E. Conroy, Mitchell Yenawine, Isaac Spitzer, Stephen R. Kane, John Southworth, J. Stevick, Jeff Gropp, Daryll LaCourse, Angela Kochoska, Brian Kirk, Brian Kirk, Gal Matijevič, Eliot Halley Vrijmoet, Tom Jacobs, J. Devor, Kristian Saetre, Billy Quarles, Benjamin J. Fulton, Michael Abdul-Masih, Michael Abdul-Masih, Griffin Werner, Aliz Derekas, Aliz Derekas, Hans Martin Schwengeler, Keivan G. Stassun, Laurance R. Doyle, Laurance R. Doyle, Abe J. Hoekstra, Jacek Toczyski, Tabetha S. Boyajian, Natalie M. Batalha, Darin Ragozzine, Gregory M. Green, Eric Agol   +54 more
openaire   +10 more sources

TESS Photometry and LAMOST Spectroscopy of 10 Detached Eclipsing Binaries

The Astronomical Journal
This study presents a thorough analysis of 10 detached eclipsing binaries that contain main-sequence stars. We have utilized a multifaceted approach, incorporating data from the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST), TESS ...
Mengxin Wang, Hailong Yuan, Zhongrui Bai, Yiqiao Dong, Ming Zhou, Mingkuan Yang, Yuji He, Shuguo Ma, Xiaobin Zhang, Haotong Zhang   +9 more
doaj   +1 more source

Spectrophotometry of massive eclipsing binary stars

The Astrophysical Journal Supplement Series, 1979
Normalized flux distributions were measured for U Ophiuchi, AG Persei, lambda Tauri, and V356 Sagitarii from 1976 July to 1978 March. The spectra of lambda Tauri match those of a B4 star and an A4 star at phases 0.77--9.90, and those of a B3 star and an A4 star at other phases.
J. S. Neff, G. L. Clements
openaire   +2 more sources

Detection of Contact Binary Candidates Observed By TESS Using the Autoencoder Neural Network

The Astronomical Journal
A contact binary may be the progenitor of a red nova that eventually produces a merger event and have a cut-off period of around 0.2 days. Therefore, a large number of contact binaries is needed to search for the progenitor of red novae and to study the ...
Xu Ding, ZhiMing Song, ChuanJun Wang, KaiFan Ji   +3 more
doaj   +1 more source

γ DORADUS PULSATIONS IN THE ECLIPSING BINARY STAR KIC 6048106 [PDF]

The Astrophysical Journal, 2016
ABSTRACT We present the Kepler photometry of KIC 6048106, which is exhibiting the O’Connell effect and multiperiodic pulsations. Including a starspot on either of the components, light-curve synthesis indicates that this system is a semi-detached Algol with a mass ratio of 0.211, an orbital inclination of 73.°9, and a large temperature ...
Jae Woo Lee, Jae Woo Lee
openaire   +3 more sources

Fundamental Parameters for Totally Eclipsing Contact Binaries Observed by TESS

The Astrophysical Journal
Totally eclipsing contact binaries provide a unique opportunity to accurately determine mass ratios through photometric methods alone, eliminating the need for spectroscopic data.
Xu Ding, KaiFan Ji, ZhiMing Song, XueFen Tian, JinLiang Wang, ChuanJun Wang, QiYuan Cheng, JianPing Xiong   +7 more
doaj   +1 more source

β Cephei Pulsators in Eclipsing Binaries Observed with TESS

The Astrophysical Journal Supplement Series
The combined strength of asteroseismology and empirical stellar basic parameter determinations for in-depth asteroseismic analysis of massive pulsators in eclipsing binaries shows great potential for treating the challenging and mysterious discrepancies ...
Christian I. Eze, Gerald Handler
doaj   +1 more source

ECLIPSING BINARY STARS : LIGHT CURVE MODELS AND SOFTWARE

Odessa Astronomical Publications, 2017
The importance of studying Eclipsing Binary Stars for the determination of fundamental stellar data is sketched. The eclipsing binaries, originally classified phenomenologically, are now understood on the basis of much firmer physics and the improved ...
P. G. Niarchos
doaj   +1 more source

TESS Light Curve of the Interacting Binary W Serpentis

The Astronomical Journal
The unusal light curve of the massive eclipsing binary W Ser was recently observed with high S/N and fast cadence by the NASA TESS mission. The TESS light curve records two eclipses and relatively fast variations outside of the eclipses.
Douglas R. Gies, Katherine A. Shepard, Aman Kar, Noel D. Richardson   +3 more
doaj   +1 more source