Galactic Center: Implications of Recent Chandra Observations for Spherical Accretion Models of Sgr A* release_dvda5rt7sfeffhoau5j5va5jg4

by Robert F. Coker, Sera Markoff

Published in Symposium - International astronomical union by Cambridge University Press (CUP).

2001   Volume 205, p32-35

Abstract

At the center of the Milky Way lurks a unique compact nonthermal radio source, Sgr A<jats:sup>*</jats:sup>. It is thought to be powered by a 2.6 × 10<jats:sup>6</jats:sup>solar mass black hole that is accreting the stellar winds from the numerous early-type stars that exist in the central parsec. However, until recent high resolution<jats:italic>Chandra</jats:italic>observations, Sgr A<jats:sup>*</jats:sup>had never been unequivocably detected at wavelengths shorter than the sub-millimeter. We present a spherical accretion model which is consistent with both the flux and steep spectral shape of the X-ray emission from Sgr A<jats:sup>*</jats:sup>.
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