TV Cassiopeiae with Chandra and XMM–Newton X-ray Observations

Proceedings

Silas G. T. Laycock¹  Daniel R. Wik²  Jeremy J. Drake³  Jun Yang⁴ 

[1] Department of Physics and Applied Physics, University of Massachusetts, Lowell, MA 01854, USA;Department of Physics and Astronomy, the University of Utah, Salt Lake City, UT 84112, USA;Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USA;Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA;

关键词: tv cas;    eclipsing binary;    orbital period variability;   

DOI  :  10.3390/proceedings2019017010

来源: DOAJ

【 摘 要 】

TV Cassiopeia (TV Cas) is a well-known eclipsing Algol-type binary comprising a B9V primary and F7 IV secondary in an orbit with a period of 1.81 days, together with a purported low-mass companion in a wide orbit. Despite the considerable attention TV Cas has received in optical and UV bands, no X-ray analysis has been reported. Chandra has detected TV Cas six times and XMM−Newton observed it twice, all serendipitously during observations of the starburst galaxy IC 10. We have put all the X-ray data together to investigate its coronal morphology and spectral properties. We use the X-ray light curves and eclipses to probe the emitting geometry and the X-ray spectra at different epochs to investigate the activity mechanisms and test speculation that TV Cas undergoes significant mass transfer episodes.

【 授权许可】

Unknown