Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996sao..repts....d&link_type=abstract
Technical Report, Harvard-Smithsonian Center for Astrophysics Cambridge, MA United States
Astronomy and Astrophysics
Astrophysics
X Ray Spectra, Spiral Galaxies, X Ray Binaries, Simulation, Symbiotic Stars, Planetary Nebulae, Stellar Mass, Interstellar Gas, Bremsstrahlung, Rosat Mission, Spectrum Analysis
Scientific paper
We compute the composite X-ray spectrum of a population of unresolved SSS's in a spiral galaxy such as our own or M31. The sources are meant to represent the total underlying population corresponding to all sources which have bolometric luminosities in the range of 1037 - 1038 ergs/s and kT on the order of tens of eV. These include close-binary supersoft sources, symbiotic novae, and planetary nebulae, for example. In order to determine whether the associated X-ray signal would be detectable, we also 'seed' the galaxy with other types of X-ray sources, specifically low-mass X-ray binaries (LMXB's) and high-mass X-ray binaries (HMXB's). We find that the total spectrum due to SSS's, LMXB's, and HMXB's exhibits a soft peak which owes its presence to the SSS population. Preliminary indications are that this soft peak may be observable.
Becker Christopher M.
Di Stefano Rosanne
Fabbiano Giuseppina
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