Results 51 to 60 of about 1,008,045 (157)

Microlensing search for extra solar planets [PDF]

, 2015
Gravitational microlensing may be used to probe distant stars for planetary companions. The presence of a planet in the vicinity of a star acting as the lens may cause a short lived anomaly in the observed lightcurve of the lensing event.
Tsapras, Yiannis
core   +2 more sources

Half a Million Binary Stars Identified from the Low-resolution Spectra of LAMOST

The Astrophysical Journal Supplement Series
Binary stars are prevalent yet challenging to detect. We present a novel approach using convolutional neural networks (CNNs) to identify binary stars from low-resolution spectra obtained by the LAMOST survey.
Yingjie Jing, Tian-Xiang Mao, Jie Wang, Chao Liu, Xiaodian Chen   +4 more
doaj   +1 more source

The period distribution of close binary systems

, 1979
The analysis of the period distribution of eclipsing and spectroscopic binary systems shows the presence of some secondary maxima, which cannot depend on selection effects. These secondary maxima are mainly due to late type stars, as can be seen from the
Farinella P., PAOLICCHI, PAOLO, Mantegazza L., Luzny F.   +3 more
core  

Observations of binary stars with the differential speckle survey instrument. IV. Observations of Kepler, CoRoT, and Hipparcos stars from the Gemini North Telescope

, 2012
We present the results of 71 speckle observations of binary and unresolved stars, most of which were observed with the DSSI speckle camera at the Gemini North Telescope in 2012 July. The main purpose of the run was to obtain diffraction-limited images of
Everett, Mark E., Ciardi, David R., Horch, Elliott P., Howell, Steve B.   +3 more
core   +1 more source

Tracing the Origins of Mass Segregation in M35: Evidence for Primordially Segregated Binaries

The Astrophysical Journal Letters
M35 is a young open cluster and home to an extensive binary population. Using Gaia Data Release 3, Pan-STARRS, and Two Micron All Sky Survey photometry with the Bayesian statistical software, BASE-9, we derive precise cluster parameters, identify single ...
Erin Motherway, Aaron M. Geller, Anna C. Childs, Claire Zwicker, Ted von Hippel   +4 more
doaj   +1 more source

Ongoing and Post-mass-transfer Binaries: A Living Catalog and Unified Review of Binary Mass-transfer Products

The Astrophysical Journal Supplement Series
Mass transfer is arguably the most defining interaction in binary stellar systems, yet many aspects of its physics remain poorly understood, from stability to endpoints and observable products.
Lieke A. C. van Son, Natsuko Yamaguchi, Pranav Nagarajan, Tomer Shenar, Koushik Sen, Alexander Laroche, Emily M. Leiner, Hugues Sana, Onno R. Pols   +8 more
doaj   +1 more source

A Comprehensive Photometric Study of the Eclipsing SU UMa-type Cataclysmic Variable OY Carinae

The Astrophysical Journal
We present a comprehensive photometric study of the eclipsing dwarf nova OY Car based on ground-based observations and archival data from the Transiting Exoplanet Survey Satellite (TESS) and AAVSO.
Zhong-Tao Han, Sheng-Bang Qian, Fernández Lajús Eduardo, Wei-Wei Na, Hu-Shan Xu, Soonthornthum Boonrucksar, Ai-Jun Dong, Ting-Ting Yang   +7 more
doaj   +1 more source

EL CVn-type binaries - discovery of 17 helium white dwarf precursors in bright eclipsing binary star systems [PDF]

, 2014
The star 1SWASP J024743.37−251549.2 was recently discovered to be a binary star in which an A-type dwarf star eclipses the remnant of a disrupted red giant star (WASP 0247−25 B).
Southworth, J., West, Richard G., Pulley, D., Simpson, E.K., Hadigal, S., Wheatley, P.J., West, R.G., Owen, C., Heber, U., Wheatley, Peter J., Bochinski, J., Cameron, A. Collier, West, R. G., Faillace, G., Simpson, E. K., Anderson, D.R., Marsh, T. R., Marsh, Tom, Maxted, P. F. L., Haswell, C. A., Smalley, B., Sebastian, D., Breedt, E., Hebb, L., Busuttil, R., Bloemen, S., Collier Cameron, A., Geier, S., Haswell, C.A., Maxted, P.F.L., Kolb, U., Marsh, T.R., Wheatley, P. J., Anderson, D. R., Smith, D.   +34 more
core   +1 more source

Discovery Of A Widely Separated Binary System Of Very Low Mass Stars

, 2005
We report our discovery of a nearby wide binary system, LP 714-37 AB. Phan-Bao et al. identified LP 714-37 as a mid-M dwarf during a cross-identification of the NLTT and DENIS catalogues.
Phan-Bao, N., Reylé, C., Martín, E. L.
core   +2 more sources

The Pleiades Binary Fraction Revisited

The Astronomical Journal
One of the nearest and best-studied open clusters, the Pleiades is an important cornerstone of stellar astrophysics. Despite its role as a reference coeval stellar population, its multiplicity properties are still not well characterized. The combined use
Dmitry Chulkov
doaj   +1 more source