Recent radio observations of the galactic centre

Details Recent radio observations of the galactic centre Recent radio observations of the galactic centre

Nov 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974hrgc.conf..247d&link_type=abstract

H II regions and the galactic centre : proceedings of the Eighth ESLAB Symposium, 4-7 June 1974, Frascati, Italy, p. 237-256 (SE

Astronomy and Astrophysics

Astronomy

13

Galactic Nuclei, Galactic Structure, Radio Astronomy, Radio Sources (Astronomy), Continuous Radiation, Maps

Scientific paper

Recent radio continuum observations of the galactic center region made at Cambridge, Westerbork, and Bonn are reviewed. The maps show considerable fine structure in the sources G1.1-0.1, G0.9+0.1, G0.7-0.0 (Sgr B2), G0.5-0.0, G0.2-0.1, and G359.4-0.1. The observations of Sgr A confirm the general division into two sources: (1) a thermal component of diameter 45 in. which surrounds the galactic nucleus, as defined by the maximum surface brightness at 2.2 microns, and (2) a nonthermal component of diameter 150 in. which may be a supernova remnant. Five sources smaller than 10 in. are found within a5 ft x 5 ft field centered on Sgr A. A radio source of angular diameter 0.1 in. may be the actual nucleus of the galaxy.

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