Results 61 to 70 of about 59,650 (323)

The Frequency of Binary Stars in the Core of 47 Tucanae

, 2001
Differential time series photometry has been derived for 46422 main-sequence stars in the core of 47 Tucanae. The observations consisted of near-continuous 160-s exposures alternating between the F555W and F814W filters for 8.3 days in 1999 July with ...
Alard C., Ata Sarajedini, Bacon D., Belloni T., Bertelli G., Bopp B. W., Callanan P. J., Cutispoto G., Davies M. B., Duquennoy A., Elson R. A. W., Heggie D. C., Heggie D. C., Kaluzny J., Kaluzny J., Kaluzny J., Keppens R., Keppens R., Mathieu R. D., Menzies J. W., Meylan G., Michael D. Albrow, Peter D. Edmonds, Portegies Zwart S. F., Puragra Guhathakurta, Rahunen T., Robertson J. A., Ronald L. Gilliland, Timothy M. Brown, van den Berg M., Vilhu O., Yan L.   +31 more
core   +1 more source

The Mass and Angular Momentum Relation of Eclipsing Binaries [PDF]

Journal of Astronomy and Space Sciences, 1998
With a total 3780 eclipsing binary system in the Catalogue of Approximate Photometric and Absolute Elements of Eclipsing Variable Stars by Svechnikov & Kuznetsova (1990), the empirical relations between the systemic mass and orbital angular momentum have
Kyu-Dong Oh
doaj  

Hidden Companions Detected by Asteroseismology. I. Two Kepler Field Non-Eclipsing Binaries

Universe, 2022
The Kepler space telescope has detected a large number of variable stars. We summarize 2261 δ Scuti and hybrid variables in the literature, and perform time-frequency analysis on these variable stars. Two non-eclipsing binary systems, KIC 5080290 and KIC
Ming Yang
doaj   +1 more source

Discovery and Precise Characterization by the MEarth Project of LP 661-13, an Eclipsing Binary Consisting of Two Fully Convective Low-mass Stars [PDF]

, 2016
We report the detection of stellar eclipses in the LP 661-13 system. We present the discovery and characterization of this system, including high-resolution spectroscopic radial velocities and a photometric solution spanning two observing seasons. LP 661-
J. Dittmann, J. Irwin, D. Charbonneau, Z. Berta-Thompson, E. Newton, D. Latham, C. Latham, G. Esquerdo, P. Berlind, M. Calkins   +9 more
semanticscholar   +1 more source

Constraining the Variability and Binary Fraction of Galactic Center Young Stars

, 2016
We present constraints on the variability and binarity of young stars in the central 10 arcseconds (~0.4 pc) of the Milky Way Galactic Center (GC) using Keck Adaptive Optics data over a 12 year baseline.
Chappell, Samantha, Do, Tuan, Gautam, Abhimat K., Ghez, Andrea M., Lu, Jessica R., Morris, Mark R., Sakai, Shoko, Sitarski, Breann N., Witzel, Gunther   +8 more
core   +2 more sources

SDSS J0926+3624: The shortest period eclipsing binary star [PDF]

Monthly Notices of the Royal Astronomical Society, 2010
Accepted for publication in MNRAS. 19 pages, including 15 figures and 6 tables.
Copperwheat, C.M., Marsh, T.R., Littlefair, S.P., Dhillon, V.S., Ramsay, G., Drake, A.J., Gänsicke, B.T., Groot, P.J., Hakala, P., Koester, D., Nelemans, G., Roelofs, G., Southworth, J., Steeghs, D., Tulloch, S.   +14 more
openaire   +5 more sources

New periodic variable stars coincident with ROSAT sources discovered using SuperWASP [PDF]

, 2007
We present optical lightcurves of 428 periodic variable stars coincident with ROSAT X-ray sources, detected using the first run of the SuperWASP photometric survey. Only 68 of these were previously recognised as periodic variables.
A. Collier Cameron, A. J. Norton, Akerlof, Alekseev, Alekseev, B. Enoch, Bejgman, Boller, Bouvier, Bouvier, Bouvier, Brancewicz, Brelstaff, C. A. Haswell, C. Hellier, Chrastina, Collier Cameron, Collier Cameron, D. J. Christian, D. M. Wilson, D. Pollacco, Deeter, Dempsey, Engle, Evans, Feast, Gershberg, Hall, Hall, Hartmann, I. Skillen, J. Irwin, J. P. Nicholas, Jeffries, K. Horne, Koen, Loomis, M. Gallaway, Meinunger, Monet, N. Parley, Neuhauser, P. J. Wheatley, Pallavicini, Pettersen, Pizzolato, Pribulla, Qian, R. A. Street, R. G. West, R. Ryans, Rosner, S. R. Kane, Schmidt, Schmidt, Selam, Skillen, Stanishev, Strassmeier, T. A. Lister, Tamuz, Turner, Vilhu, W. I. Clarkson, Walter, Wegner, Wheatley, Zhang   +67 more
core   +3 more sources

KEPLER ECLIPSING BINARY STARS. I. CATALOG AND PRINCIPAL CHARACTERIZATION OF 1879 ECLIPSING BINARIES IN THE FIRST DATA RELEASE [PDF]

, 2010
The Kepler space mission is devoted to finding Earth-size planets orbiting other stars in their habitable zones. Its large, 105 deg2 field of view features over 156,000 stars that are observed continuously to detect and characterize planet transits. Yet,
A. Prša, N. Batalha, R. Slawson, L. Doyle, W. Welsh, J. Orosz, S. Seager, Michael Rucker, Kimberly Mjaseth, S. Engle, K. Conroy, J. Jenkins, D. Caldwell, D. Koch, W. Borucki   +14 more
semanticscholar   +1 more source

Variability of Young Massive Stars in the Galactic Super Star Cluster Westerlund 1

, 2007
This paper presents the first optical variability study of the Westerlund 1 super star cluster in search of massive eclipsing binary systems. A total of 129 new variable stars have been identified, including the discovery of 4 eclipsing binaries that are
Alceste Z. Bonanos, Rauw G., Schweickhardt J., Townsend R. H. D., Westerlund B. E.   +4 more
core   +3 more sources

KEPLER ECLIPSING BINARY STARS. IV. PRECISE ECLIPSE TIMES FOR CLOSE BINARIES AND IDENTIFICATION OF CANDIDATE THREE-BODY SYSTEMS [PDF]

, 2013
We present a catalog of precise eclipse times and analysis of third-body signals among 1279 close binaries in the latest Kepler Eclipsing Binary Catalog.
K. Conroy, A. Prša, K. Stassun, J. Orosz, D. Fabrycky, W. Welsh   +5 more
semanticscholar   +1 more source