Sgr A*: Quiescent But Not Atypical -- A Comparison With A0620-00

Details Sgr A*: Quiescent But Not Atypical -- A Comparison With A0620-00 Sgr A*: Quiescent But Not Atypical -- A Comparison With A0620-00

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21940905m&link_type=abstract

American Astronomical Society, AAS Meeting #219, #409.05

Physics

Scientific paper

Sgr A* is the weakest accreting black hole we have ever observed, yet it is not a particularly unique object. We know that the majority of galaxies are more like Sgr A* than active galactic nuclei (AGN), so it is important to understand what these low-level engines can contribute to their environs. The Fundamental Plane of Black Hole Accretion is an important tool for making comparisons of black hole physics across the mass scale. In this talk, I will present the first ever joint fits between Sgr A* in the flaring state and the stellar-mass quiescent black hole X-ray binary, A0620-00. I will show how the same physical model with exactly the same (mass scaled) parameters can apply to both sources, and discuss what this could mean for our understanding of both objects individually. This new method can help break degeneracies between models, and for these sources in particular shed light on questions of particle acceleration at the lowest accretion rates.

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