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Observations of variable and transient X-ray sources with the Ariel V sky survey experiment

Observations of variable and transient X-ray sources with the Ariel V sky survey experiment

Authors :
A. Peacock
B. A. Cooke
M. J. Ricketts
Ken Pounds
Martin J. L. Turner
G. Eadie
Source :
Astrophysics and Space Science. 42:143-159
Publication Year :
1976
Publisher :
Springer Science and Business Media LLC, 1976.

Abstract

Results obtained during the first six months in orbit of Ariel V with the Leicester Sky Survey are reviewed. Among 80 sources found by a scan of the Milky Way, 16 are new, and 11 UHURU sources in the scanned region are not detected. Some of these sources may be transient. The light curve of Cen X-3 in a binary cycle shows a dip between phase 0.5, and 0.75, and a secondary maximum at the centre of the dip. The dip and the maximum get progressively weaker in the succeeding cycles. These features are interpreted in terms of the stellar wind accretion model. Cyg X-1 observation for 14 days gives a broad minimum around superior conjuction. Four bright transient sources of nova-like light curves have been observed. The light curves and the spectra are given for TrA X-1 (A1524-62) and Tau X-T (A0535+26).

Details

ISSN :
1572946X and 0004640X
Volume :
42
Database :
OpenAIRE
Journal :
Astrophysics and Space Science
Accession number :
edsair.doi...........35d1823a03d1312df6ee0e68fec7f6fa
Full Text :
https://doi.org/10.1007/bf00645535