Journal
ASTRONOMISCHE NACHRICHTEN
Volume 324, Issue -, Pages 435-443Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/asna.200385043
Keywords
-
Categories
Ask authors/readers for more resources
I review radiatively inefficient accretion flow models for the approximate to 2.6 x 10(6) M circle dot black hole (BH) in the Galactic Center. I argue for a 'concordance model' of Sgr A*: both theory and observations suggest that hot ambient gas around the BH is accreted at a rate similar to 10(-8) M circle dot yr(-1), much less than the canonical Bondi rate. I interpret Chandra observations of Sgr A* in the context of such a model: (1) the extended 'quiescent' X-ray emission is due to thermal bremsstrahlung from gas in the vicinity of the Bondi accretion radius, and (2) the similar to 10(4) second long X-ray flares are due to synchrotron or Inverse-Compton emission by non-thermal electrons accelerated in the inner similar to 10(4) Schwarzschild radii of the accretion flow.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available