High Resolution Imaging of Sagittarius A*

Details High Resolution Imaging of Sagittarius A* High Resolution Imaging of Sagittarius A*

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006jphcs..54..370b&link_type=abstract

"Journal of Physics: Conference Series, Volume 54, Proceedings of "The Universe Under the Microscope - Astrophysics at High Angu

Astronomy and Astrophysics

Astrophysics

2

Scientific paper

High resolution radio imaging of Sgr A* provides an opportunity to study the accretion and outfbw environment of a black hole that is not available for any other system. Strong interstellar scattering of radio waves, however, complicate the interpretation of radio images. High quality determination of the intrinsic size and shape require high quality images as well as accurate calibration of the scattering law. New results indicate that the intrinsic size is determined from 3.5 cm to 0.35 cm with a size at the shortest wavelength of ~13Rsand a wavelength-size power law index of 1.5. Millimeter and submillimeter observations have the promise of constraining the mass density of the black hole on a smaller radius than any other technique.

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