Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aps..aprn17088b&link_type=abstract
American Physical Society, April Meeting, Jointly Sponsored with the High Energy Astrophysics Division (HEAD) of the American As
Astronomy and Astrophysics
Astrophysics
Scientific paper
We have observed the soft X-ray transient XTE J0421+56 in quiescence with XMM-Newton. The observed spectrum is unlike anything ever seen from the X-ray sky before. The spectrum is dominated by a broad feature at 6.5 keV and can be modeled by a strongly absorbed power-law. The spectra of X-ray transients observed so far are normally modeled using ADAFs, black-bodies, power-laws, or by the thermal emission from a neutron star surface and are all continuum dominated. The strongly absorbed X-ray emission of XTE J0421+56 could result from the compact object being embedded within the circumstellar envelope of the supergiant B[e] companion star.
Boirin Laurence
Lumb David
Orlandini Mauro
Parmar Arvind
Schartel Norbert
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