Detection of Two New Supersoft X-Ray Sources in the Large Magellanic Cloud

Details Detection of Two New Supersoft X-Ray Sources in the Large Magellanic Cloud Detection of Two New Supersoft X-Ray Sources in the Large Magellanic Cloud

Jun 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26a...273l..56o&link_type=abstract

Astronomy and Astrophysics, Vol.273, NO. 2/JUNII, P. L56, 1993

Astronomy and Astrophysics

Astrophysics

19

Scientific paper

We present the Rosat discovery of two new supersoft sources in the Large Magellanic Cloud (LMC), RX J0537.7-7034 and RX J0534.6-7056. The spectra of both sources are consistent with a black-body temperature in the range from 20 to 40 eV with corresponding X-ray luminosities in the range 10^38^ - 5 x 10^36^ erg s^-1^ respectively. A third known supersoft source in the field of view, RX J0527.8-6954, was also detected at a count rate level of about a factor of 4 lower than in the Rosat observations 2 years before. Together with Cal 83 and Cal 87, discovered by the Einstein survey of the LMC, these five objects represent a new class of X-ray sources. We discuss their interpretation in terms of the model of white dwarfs burning hydrogen rich material accreted from their companion.

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