Astronomy and Astrophysics – Astrophysics – High Energy Astrophysical Phenomena
Scientific paper
2012-02-02
Astronomy and Astrophysics
Astrophysics
High Energy Astrophysical Phenomena
8 pages, 2 figures, submitted to the proceedings of AHAR 2011: The Central Kiloparsec
Scientific paper
Ongoing millimeter VLBI observations with the Event Horizon Telescope allow unprecedented study of the innermost portion of black hole accretion flows. Interpreting the observations requires relativistic, time-dependent physical modeling. We discuss the comparison of radiative transfer calculations from general relativistic MHD simulations of Sagittarius A* and M87 with current and future mm-VLBI observations. This comparison allows estimates of the viewing geometry and physical conditions of the Sgr A* accretion flow. The viewing geometry for M87 is already constrained from observations of its large-scale jet, but, unlike Sgr A*, there is no consensus for its millimeter emission geometry or electron population. Despite this uncertainty, as long as the emission region is compact, robust predictions for the size of its jet launching region can be made. For both sources, the black hole shadow may be detected with future observations including ALMA and/or the LMT, which would constitute the first direct evidence for a black hole event horizon.
Agol Eric
Dexter Jason
Fragile Chris P.
McKinney Jonathan C.
No associations
LandOfFree
Radiative Models of Sagittarius A* and M87 from Relativistic MHD Simulations does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Radiative Models of Sagittarius A* and M87 from Relativistic MHD Simulations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radiative Models of Sagittarius A* and M87 from Relativistic MHD Simulations will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-186828