Variability survey in the CoRoT SRa01 field: Implications of eclipsing binary distribution on cluster formation in NGC 2264

Klagyivik, Péter and Csizmadia, Szilárd and Pasternacki, T. and Fruth, T. and Erikson, A. and Cabrera, J. and Chini, R. and Eigmüller, P. and Kabath, P. and Kirste, S. and Lemke, R. and Murphy, M. and Rauer, H. and Titz-Weider, R. (2013) Variability survey in the CoRoT SRa01 field: Implications of eclipsing binary distribution on cluster formation in NGC 2264. ASTROPHYSICAL JOURNAL, 773 (1). ISSN 1538-4357

Preview

Text 1306.5908v1.pdf Available under License Creative Commons Attribution. Download (9MB) | Preview

Abstract

Time-series photometry of the CoRoT field SRa01 was carried out with the Berlin Exoplanet Search Telescope II (BEST II) in 2008/2009. A total of 1,161 variable stars were detected, of which 241 were previously known and 920 are newly found. Several new, variable young stellar objects have been discovered. The study of the spatial distribution of eclipsing binaries revealed the higher relative frequency of Algols toward the center of the young open cluster NGC 2264. In general Algol frequency obeys an isotropic distribution of their angular momentum vectors, except inside the cluster, where a specific orientation of the inclinations is the case. We suggest that we see the orbital plane of the binaries almost edge-on.

Actions (login required)

Edit Item