Abstract
Interferometer measurements show the galactic center source Sgr A to consist of a non-thermal source, Sgr A East, an H I[ Region, Sgr A West and an unusual point source. The properties of these sources are given below:
Sgr A East may be a supernova remnant near the galactic center. The H II Region Sgr A West has the following unique properties:
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i)
Its position agrees with the centroid of the 2.2μ radiation, which is believed to come from stars at the galactic center.
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ii)
It has a recombination line of halfwidth ∼200 km s−1, 4 to 5 times larger than that of any spiral arm H II region.
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iii)
At its center lies the remarkable radio point source, which has a brightness temperature >107 K, and which may be the actual nucleus of the Galaxy. *** DIRECT SUPPORT *** A3418034 00012
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© 1975 Springer-Verlag
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Downes, D. (1975). The center of our galaxy. In: Wilson, T.L., Downes, D. (eds) H II Regions and Related Topics. Lecture Notes in Physics, vol 42. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-07409-0_137
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DOI: https://doi.org/10.1007/3-540-07409-0_137
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