Polarized Emission and Black Hole Shadow Image of Sagittarius A*

Details Polarized Emission and Black Hole Shadow Image of Sagittarius A* Polarized Emission and Black Hole Shadow Image of Sagittarius A*

May 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aspc..439..380h&link_type=abstract

The Galactic Center: a Window to the Nuclear Environment of Disk Galaxies. Proceedings of a workshop held at Shanghai, China on

Astronomy and Astrophysics

Astronomy

Scientific paper

We show that a general relativistic accretion flow, heated via the plasma wave heating mechanism, is consistent with the polarization and recent millimeter-VLBI observations of Sgr A* for inclination angle of ˜ 45°, position angle of ˜ 140°, and spin < 0.9. However, the parameters inferred from current observations depend significantly upon the adopted model. We then consider eight potential millimeter-VLBI stations, including the possible sites in Chile and New Zealand, finding that with these the basic geometry of the emission region can be reliably estimated.

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