The central parsec of the Galaxy

Details The central parsec of the Galaxy The central parsec of the Galaxy

Jul 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979sciam.241...60g&link_type=abstract

Scientific American, vol. 241, July 1979, p. 60-70.

Astronomy and Astrophysics

Astronomy

1

Galactic Nuclei, Galactic Structure, Milky Way Galaxy, Astronomical Maps, Astronomical Models, Black Holes (Astronomy), Galactic Radiation, Graphs (Charts), H Ii Regions, Infrared Astronomy, Radio Astronomy

Scientific paper

Infrared and radio observations of the galactic core are reviewed with particular attention to the central parsec of the Galaxy. Observations of the Ne II and H II regions in Sagittarius A West are discussed in some detail. Possible explainations of the uniformly low level of ionization in the region of the central parsec are considered. It is maintained that the peculiarities of ionization states observed in this region are most consistent with a model based on the existence of a massive black hole in the galactic center, possibly the compact radio object (diameter less than .001 arcsec) located in IRS-16 in Sagittarius A West.

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