Observations of the Andromeda Galaxy at 11-Centimeter Wavelength

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Science  26 May 1967:
Vol. 156, Issue 3778, pp. 1087-1088
DOI: 10.1126/science.156.3778.1087


Observations of the Andromeda galaxy (M31) at 2695 megahertz reveal more detail than do earlier measurements at lower frequency. The region is highly confused but there is apparently a more dense clustering of sources within the optical outline of the galaxy than without. One source (OA33) near M31 has an interesting. flat spectrum.