EXOSAT observations of the X-ray source 2S 0114+65

Apparao, Krishna M. V. ; Bishti, P. ; Singh, K. P. (1991) EXOSAT observations of the X-ray source 2S 0114+65 The Astrophysical Journal, 371 . pp. 772-775. ISSN 0004-637X

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Official URL: http://adsabs.harvard.edu/doi/10.1086/169941

Related URL: http://dx.doi.org/10.1086/169941


The Exosat satellite made X-ray observations of the Be star binary system 2S 0114 + 65 on five occasions during the period 1983-1986. Several X-ray flares of a few hours duration were observed. The hardness ratio shows an inverse correlation with intensity, indicating that the intensity variation is due to absorption. This implies density irregularities in the gas disk around the Be star on the scale of 1011 cm. An iron line emission at 6.4 keV was observed when the absorption was high. On one occasion the intensity showed quasi-periodic oscillations with a period around 2000 s.

Item Type:Article
Source:Copyright of this article belongs to American Astronomical Society.
Keywords:Binary Stars; Exosat Satellite; Stellar Evolution; X Ray Sources; Energy Spectra; Iron; Line Spectra; Stellar Oscillations
ID Code:59035
Deposited On:03 Sep 2011 12:08
Last Modified:18 May 2016 09:44

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