Discovery of a large X-ray burst from an X-ray nova, Centaurus X-4

Details Discovery of a large X-ray burst from an X-ray nova, Centaurus X-4 Discovery of a large X-ray burst from an X-ray nova, Centaurus X-4

Sep 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...240l.137m&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 240, Sept. 15, 1980, p. L137-L141.

Astronomy and Astrophysics

Astrophysics

55

Binary Stars, Light Curve, Neutron Stars, Novae, X Ray Sources, Energy Spectra, Optical Properties, Stellar Luminosity, Stellar Mass Accretion

Scientific paper

The X-ray satellite Hakucho detected an X-ray burst from the nova-like transient Cen X-4 on May 31, 1979. The time profile and the spectral softening of the burst show the same properties as those of a type I X-ray burst. The peak intensity of approximately 25 times the Crab in the energy range 1.5-12 keV is the strongest X-ray burst observed so far. The burst occurred during a nova-like outburst which is similar to one observed in 1969. The present discovery suggests that a soft transient source such as Cen X-4 comprises a neutron star and a late dwarf and can be an X-ray burster.

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