ROSAT observation of two supersoft sources in the Large Magellanic Cloud

Details ROSAT observation of two supersoft sources in the Large Magellanic Cloud ROSAT observation of two supersoft sources in the Large Magellanic Cloud

Jun 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...246l..17g&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 246, no. 1, June 1991, p. L17-L20.

Astronomy and Astrophysics

Astronomy

111

Accretion Disks, Black Body Radiation, Magellanic Clouds, X Ray Binaries, Photons, Point Sources, Rosat Mission, Satellite Observation, Spaceborne Astronomy

Scientific paper

The results of Rosat observations are given for CAL 83 and the new soft source RX J0527.8-6954 in the Large Magellanic Cloud (LMC). Both sources have remarkably similar spectra which can be described by black-body radiation. The best fit values of N(H) = (1-2) x 10 to the 21st/sq cm clearly indicate LMC membership for both sources. The sources exhibit black-body temperatures of 20-40 eV and radiate at the Eddington limit or even beyond. These sources may represent a new class of bright low-mass X-ray binaries which could help to solve the millisecond-pulsar birthrate problem.

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