Letter | Published:

Microwave Observations of the Galactic Centre Region

Naturevolume 204pages865866 (1964) | Download Citation



THIS communication describes a new set of observations of the region surrounding the radio source Sagittarius A, at present assumed to be the galactic centre. The observations were made at a frequency of 5 Gc/s, and the results are summarized in the form of a contour map showing the various components of radiation in this region. The position of the Sagittarius A source appears to differ slightly from the zero of the lIIbII co-ordinate system. The spectral index of the source, derived by comparing the flux density at 5 Gc/s with other measurements in the microwave band, indicates that it is non-thermal.

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  1. Harvard Radio Astronomy Station, Fort Davis, Texas

    • A. MAXWELL
    •  & D. DOWNES


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