Masses of X-ray bursters and super-Eddington luminosities

Details Masses of X-ray bursters and super-Eddington luminosities Masses of X-ray bursters and super-Eddington luminosities

Jul 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apj...247..628h&link_type=abstract

Astrophysical Journal, Part 1, vol. 247, July 15, 1981, p. 628-631. Research supported by the Yamada Science Foundation.

Astronomy and Astrophysics

Astronomy

21

Bursts, Stellar Luminosity, Stellar Mass, X Ray Sources, Black Body Radiation, Black Holes (Astronomy), Globular Clusters, Heao 2, Japanese Space Program, Neutron Stars, Spaceborne Astronomy, Stellar Magnetic Fields, Stellar Mass Accretion, X Ray Astronomy

Scientific paper

It is shown that the upper limit to the mass of X-ray bursters and the minimum of the ratio of peak luminosity to Eddington luminosity, kmin, can be determined as functions of the apparent peak luminosity of a burst and the corresponding blackbody temperature. Observations of a burst recorded with the Einstein Observatory from the globular cluster Terzan 2 and of bursters recorded with the Japanese X-ray satellite Hakucho from XB 1636-536 support the conclusion that the upper limit of the mass of these sources is approximately 1 solar mass and that the ratio kmin is distinctly greater than 5 for an assumed distance of 10 kpc.

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