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A Thermal Bremsstrahlung Model for the Quiescent X‐Ray Emission from Sagittarius A*
2002
Astrophysical Journal
I consider the thermal bremsstrahlung emission from hot accretion flows (Bondi/ADAFs), taking into account the finite size of the observing telescope's beam (R_beam) relative to the Bondi accretion radius (R_A). For R_beam >> R_A soft X-ray emission from the hot interstellar medium surrounding the black hole dominates the observed emission while for R_beam << R_A hard X-ray emission from the accretion flow dominates. I apply these models to Chandra observations of the Galactic Center, for which
doi:10.1086/341425
fatcat:4icubzmnnfeftlsptfdombxblu