Results 111 to 120 of about 1,089,644 (224)

A Low Metallicity Massive Contact Binary Star System Candidate in WLM Identified by Hubble and James Webb Space Telescope Imaging

The Astrophysical Journal
We present archival Hubble Space Telescope (HST) and JWST ultraviolet through near-infrared time series photometric observations of a massive minimal-contact binary candidate in the metal-poor galaxy Wolf–Lundmark–Melotte ( Z  = 0.14 Z _⊙ ).
Maude Gull, Daniel R. Weisz, Kareem El-Badry, Jan Henneco, Alessandro Savino, Meredith Durbin, Yumi Choi, Roger E. Cohen, Andrew A. Cole, Matteo Correnti, Julianne J. Dalcanton, Karoline M. Gilbert, Steven R. Goldman, Puragra Guhathakurta, Kristen B. W. McQuinn, Max J. B. Newman, Evan D. Skillman, Benjamin F. Williams   +17 more
doaj   +1 more source

Evidence for a Close-in Tertiary Orbiting around the Algol-type System HZ Dra with Tidal Splitting and Spots Activities

The Astrophysical Journal
We report a cyclic variation of the O − C diagram with a semiamplitude of 0.0033 days and a period of 1.05 yr for the pulsating eclipsing binary HZ Dra. The cyclic variation can be explained by the light travel-time effect via the presence of a close-in ...
Ping Li, Wen-Ping Liao, Sheng-Bang Qian, Lin-Jia Li, Qi-Bin Sun, Xiang-Dong Shi, Azizbek Matekov, Qi-Huan Zeng, Zhao-Long Deng, Xiao-Hui Fang   +9 more
doaj   +1 more source

A transiting companion to the eclipsing binary KIC002856960

, 2012
We present an early result from an automated search of Kepler eclipsing binary systems for circumbinary companions. An intriguing tertiary signal has been discovered in the short period eclipsing binary KIC002856960. This third body leads to transit-like
Gómez Maqueo Chew, Y., McDaid, Paul, Faedi, F., Skillen, I., Burton, J., Pollacco, D., M. Cegla, H., McCormac, J., Watson, Christopher; id_orcid, Armstrong, David   +9 more
core   +3 more sources

52 Eclipsing Quadruple Star Candidates Discovered in TESS Full Frame Images

The Astronomical Journal
We present the discovery of 52 eclipsing quadruple star candidates detected in TESS Full Frame Image eleanor data by machine learning and citizen scientists.
V. B. Kostov, B. P. Powell, S. A. Rappaport, T. Borkovits, R. Gagliano, M. Omohundro, T. L. Jacobs, M. H. Kristiansen, G. Torres, G. Handler, A. R. Schmitt, H. M. Schwengeler, T. Mitnyan, I. A. Terentev, D. M. LaCourse, A. Vanderburg, S. D. Alexandrov, C. M. da Silva, Marco Z. Di Fraia, Aline U. Fornear, M. Huten, D. Iannone, Julien S. de Lambilly, S. Lee, J. Orosz, R. Rodrigues, A. Tarr, W. Welsh   +27 more
doaj   +1 more source

Eclipsing Binary Stars in Open Clusters

, 2006
6 pages, 4 figures, proceedings of the conference Close Binaries in the 21st Century (Syros, Greece, June 2005), to appear in Ap ...
Southworth, John, Clausen, J V
openaire   +2 more sources

Detection of Four Intermediate-mass Stars with Cool Companions in Low Mass Ratio Eclipsing Binaries

The Astrophysical Journal
According to the core fragmentation and dynamical capture theories of binary formation, binaries tend to form with nearly equal masses. The detection of intermediate-mass binaries with low mass ratios challenges these theories, as such binaries may form ...
Linfeng Chang, Shengbang Qian, Lei Zang, Fuxing Li   +3 more
doaj   +1 more source

Orbital Modulation Induced by a Third Component in the Overcontact Binary V0554 Dra

The Astrophysical Journal
We present the first comprehensive photometric and spectroscopic analysis of the overcontact eclipsing binary V0554 Dra. By simultaneously modeling multiband light curves and radial velocity data using the Wilson–Devinney code, we determine that the ...
Mu-Lan Deng, Jia-Xin Zhao, Jie Wei, Yi-Man Liu, Chao-Yue Li, Jie Zheng, Kai Huang, Lin Cao, Hai-yin Qing, Yu Zhang, Lin-Qiao Jiang   +10 more
doaj   +1 more source

Physical characterization of late-type contact binary systems observed by LAMOST: a comprehensive statistical analysis. [PDF]

Sci Rep, 2023
Abdel Rahman HI, Darwish M.
europepmc   +1 more source

Spot evolution in the eclipsing binary CoRoT 105895502

, 2019
Stellar activity is ubiquitous in late-type stars. The special geometry of eclipsing binary systems is particularly advantageous to study the stellar surfaces and activity. We present a detailed study of the 145 d CoRoT light curve of the short-period (2.
S. Terzenbach, J. H. M. M. Schmitt, S. Czesla, R. Wichmann   +3 more
core   +1 more source

Toward Early-type Eclipsing Binaries as Extragalactic Milestones: First Calibration of the SBCR from O- and B-type Stars in Detached Eclipsing Binaries

The Astrophysical Journal Letters
To measure precise distances beyond the Magellanic Clouds and determine an accurate value of the Hubble constant, eclipsing binary systems composed of early-type stars can play a crucial role.
Mónica Taormina, G. Pietrzyński, B. Pilecki, R.-P. Kudritzki, D. Graczyk, J. Puls, M. Górski   +6 more
doaj   +1 more source