Abstract

view Abstract Citations (64) References (19) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Evidence for weak X-ray burst emission from Cygnus X-2 and GX 17+2. Kahn, S. M. ; Grindlay, J. E. Abstract Events resembling weak X-ray bursts have been detected from the two strong persistent sources, Cygnus X-2 and GX 17+2. Both events exhibit rise times less than 2.56 s and 1.2 - 14.4 keV decay times of approximately 5 - 10 s. The event from Cyg X-2 is similar to a type I burst in terms of blackbody temperature and peak luminosity, and it is shown that it can be plausibly interpreted as a thermonuclear flash from an accreting neutron star. The GX 17+2 event exhibits a considerably harder X-ray spectrum which makes it unlikely to be a thermonuclear flash. This event could arise from an accretion instability as in type II bursts. Publication: The Astrophysical Journal Pub Date: June 1984 DOI: 10.1086/162161 Bibcode: 1984ApJ...281..826K Keywords: Binary Stars; Neutron Stars; Stellar Mass Accretion; X Ray Sources; Black Body Radiation; Bremsstrahlung; Cygnus Constellation; Thermonuclear Explosions; Astrophysics full text sources ADS | data products SIMBAD (9)

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