Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apj...293l..65l&link_type=abstract
Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 293, June 15, 1985, p. L65-L67.
Astronomy and Astrophysics
Astronomy
51
Galactic Nuclei, Galactic Structure, Milky Way Galaxy, Radio Astronomy, Astronomical Maps, Infrared Astronomy, Radio Frequencies, Sagittarius Constellation
Scientific paper
As discussed by Sofue and Handa (1984), two large radio continuum arcs cross the Galactic equator in the vicinity of the Galactic center. One arc, at longitude + 0.2 deg, brightens considerably over a 50 pc region nearest Sgr A, to which it is apparently connected by a remarkable set of curved filaments as reported by Yusef-Zadeh et al. (1984), the internal arc structure near Sgr A exhibits a unique series of parallel streamers. Here it is shown that Sgr C, located near the base of the second arc at l of about 359.45 deg, strongly resembles Sgr A and is connected to a filament which forms the brightest part of that arc. While there is no evidence that the Milky Way has a double nucleus, similarity between the Sgr A and C complexes suggests that some of the same striking phenomena can be studied at two locations near the Galactic center.
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