On the radio and near-infrared hydrogen recombination-line emission from M82

Details On the radio and near-infrared hydrogen recombination-line emission from M82 On the radio and near-infrared hydrogen recombination-line emission from M82

May 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...238...41r&link_type=abstract

Astrophysical Journal, Part 1, vol. 238, May 15, 1980, p. 41-44.

Astronomy and Astrophysics

Astronomy

7

Galactic Radiation, H Lines, Infrared Astronomy, Radio Galaxies, Emission Spectra, Galactic Nuclei, Ionized Gases, Near Infrared Radiation

Scientific paper

We present observations of the H125 alpha line that confirm earlier suggestions that the radio recombination-line emission from M82 at frequencies below approximately 10 GHz is mainly stimulated. However, consideration of both the radio and near-infrared hydrogen recombination-line data suggests that the radio line emission cannot be attributed only to the optically observed ionized gas in the nucleus of that galaxy. Considerably larger amounts of obscured ionized gas must be contributing, and it is shown that a model incorporating this view can fit satisfactorily most of the radio and near-infrared recombination-line data.

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