Detection of extragalactic carbon monoxide at millimeter wavelengths

Details Detection of extragalactic carbon monoxide at millimeter wavelengths Detection of extragalactic carbon monoxide at millimeter wavelengths

Jul 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975apj...199l..75r&link_type=abstract

Astrophysical Journal, vol. 199, July 15, 1975, pt. 2, p. L75-L78. Research supported by the Alfred P. Sloan Foundation

Astronomy and Astrophysics

Astronomy

75

Carbon Monoxide, Emission Spectra, Galactic Nuclei, Interstellar Gas, Millimeter Waves, Galactic Radiation, Microwave Emission, Molecular Spectra, Radio Astronomy

Scientific paper

Discovery of emission from the J = 1 to J = 0 transition of CO toward the central regions of external galaxies is reported. Preliminary results are presented for two galaxies with active nuclei, M82 and NGC 253, in which the observed emission features are surprisingly strong. In the directions of the nuclear continuum peaks, the velocity range of CO emission is roughly the same as that of 21-cm absorption. For each galaxy, the CO features are spatially extended, and the velocity shift of the emission centroid along the major axis is in the sense of the galactic rotation.

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