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*

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21341102h&link_type=abstract

American Astronomical Society, AAS Meeting #213, #411.02; Bulletin of the American Astronomical Society, Vol. 41, p.216

Astronomy and Astrophysics

Astronomy

Scientific paper

We adopt the ray-tracing algorithm to simulate the emission from Sagittarius (Sgr) A* with several theoretical models. 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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