X-ray observations of single-line spectroscopic binaries

Singh, K. P. ; Naranan, S. (1982) X-ray observations of single-line spectroscopic binaries Astronomy & Astrophysics, 113 (1). pp. 167-169. ISSN 0004-6361

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Official URL: http://adsabs.harvard.edu/abs/1982A&A...113..167S


Observations of three single-line spectroscopic binaries with the Imaging Proportional Counter on the Einstein Observatory are presented. None of the three binaries viz π5 Ori, θ2 Cru, and 112 Her is detected as an X-ray source, making the presence of a compact secondary in any of these binaries highly unlikely. An extended X-ray source (X-ray size ~3') with an intensity of (2.2±0.25) 10−12 erg cm−2 s−1 in the 0.3-3.3 KeV energy band has been found at a position 28' away from π5 Ori. The X-ray source position is consistent with that of a distant cluster of galaxies, A 520.

Item Type:Article
Source:Copyright of this article belongs to EDP Sciences.
Keywords:Spectroscopic Binaries; B Stars; X-ray Source Search; X-ray Emitting Cluster of Galaxies
ID Code:59048
Deposited On:03 Sep 2011 12:07
Last Modified:18 May 2016 09:45

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