Balloon observations of fast intensity fluctuations and flare-like enhancements of X-ray emission from Cygnus X-1

Rao, U. R. ; Kasturirangan, K. ; Sharma, D. P. ; Jain, A. K. ; Jayanthi, U. B. (1976) Balloon observations of fast intensity fluctuations and flare-like enhancements of X-ray emission from Cygnus X-1 Astrophysics and Space Science, 42 (1). pp. 193-199. ISSN 0004-640X

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Official URL: http://www.springerlink.com/content/uv6657vw2611j1...

Related URL: http://dx.doi.org/10.1007/BF00645542

Abstract

The paper presents the results of the investigation on the short term X-ray emission characteristics of Cyg X-1 in the 20-150 keV range. The observations were made with balloon-borne oriented scintillation telescope and the flights were conducted from Hyderabad, India. The source was tracked over a duration of 1 hr that enabled detailed observations with time resolution of the order of 1 min. Fluctuations in the intensity of Cyg X-1 with time scales of the order of minutes have been detected besides short-term flare-like enhancements. The spectral characteristics of the flare emission features are discussed and their relationship to the phase of the binary is examined.

Item Type:Article
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ID Code:16599
Deposited On:15 Nov 2010 13:35
Last Modified:17 May 2016 01:20

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