Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007xmm..prop...40g&link_type=abstract
XMM-Newton Proposal ID #05511501
Astronomy and Astrophysics
Astrophysics
White Dwarf Binaries, Neutron Star Binaries, Cataclysmic Variables, Ulxs, Black Holes, Rr Tel, Xmm-Newton Proposal Id #05511501
Scientific paper
RR Tel is an extraordinary laboratory for spectroscopic studies of low density astrophysical plasmas. Its optical and ultraviolet spectrum is extremely rich in emission lines which cover a wide range in excitation and ionization stages. Its X-ray spectrum is dominated by a supersoft component at energies below 0.5 keV, but there is an additional, weaker hard excess. This emission can been attributed to gas ionized by the collision between the winds of the two component of the system, but the data available so far do not allow to draw any conclusion. A good quality X-ray high resolution spectrum of RR Tel will be crucial to understand the physical processes that are taking place in the system, in particular in the collision shock of the winds from the two stars.
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