Interstellar scattering of SGR A(asterisk)

Details Interstellar scattering of SGR A(asterisk) Interstellar scattering of SGR A(asterisk)

Nov 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988aipc..174..111b&link_type=abstract

IN: Radio wave scattering in the interstellar medium; Proceedings of the AIP Conference, San Diego, CA, Jan. 18, 19, 1988 (A89-2

Astronomy and Astrophysics

Astronomy

16

Interstellar Extinction, Interstellar Matter, Milky Way Galaxy, Radio Scattering, Radio Sources (Astronomy), Wave Propagation, Angular Distribution, H Ii Regions, Molecular Clouds, Sagittarius Constellation, Very Large Array (Vla)

Scientific paper

The effects of the ISM on the observed radio signal from Sgr A(asterisk), a compact nonthermal radio source located near the Galactic center, are analyzed on the basis of recent observations. Particular attention is given to the angular size, proper motion, and intensity variations of the object. It is concluded that the object has a mass of 200 solar mass or more, and that the dominant source of intensity variability is the emission mechanism, probably involving a synchrotron corona.

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