Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apj...247l..27k&link_type=abstract
Astrophysical Journal, Part 2 - Letters to the Editor, vol. 247, July 1, 1981, p. L27-L29.
Astronomy and Astrophysics
Astrophysics
52
Companion Stars, Late Stars, Neutron Stars, Novae, X Ray Sources, Crab Nebula, Dwarf Stars, Light Curve, Periodic Variations
Scientific paper
Two X-ray bursts were observed from the recurrent transient Aql X-1 during the declining phase of a nova-like flare. These bursts exhibit common characteristics of typical X-ray bursts. The observed ratio of the persistent flux to the burst peak flux was about 0.02, which is about the same as the value for the burst observed from Cen X-4 during its outburst. Combined with the optical data during the X-ray quiescent state, the discovery of X-ray bursts from Aql X-1 gives strong support for the picture of X-ray bursters as binaries composed of a late dwarf and a neutron star.
Hayakawa Saito
Inoue Hajime
Kondo I. S.
Koyama Katsuji
Kunieda Hideyo
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