The sub-millimeter emission and the visibility of Sagittarius A*

Details The sub-millimeter emission and the visibility of Sagittarius A* The sub-millimeter emission and the visibility of Sagittarius A*

Oct 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008jphcs.131a2005h&link_type=abstract

"Journal of Physics: Conference Series, Volume 131, Proceedings of "The Universe Under the Microscope - Astrophysics at High Ang

Astronomy and Astrophysics

Astrophysics

Scientific paper

We adopt the ray-tracing algorithm to simulate the emission from Sagittarius (Sgr) A* with three theoretical models, i.e., the radiatively inefficient accretion flow, jet model, and MRI-driven Keplerian accretion flow with highly-magnetized plasma. By compared to the millimeter VLBI imaging and polarization results, our simulation imposes some constraints on the orientation of the central black hole with regard to the accretion flow or jet. These models can further predict black hole shadow images and corresponding visibility profiles along specific sub-millimeter VLBI baselines, providing reasonable explanations for the preliminary data at 1.3mm.

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