A 10 micron survey of star formation in galactic nuclei Virgo spiral galaxies

Details A 10 micron survey of star formation in galactic nuclei Virgo spiral galaxies A 10 micron survey of star formation in galactic nuclei Virgo spiral galaxies

Aug 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...271..512s&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 271, Aug. 15, 1983, p. 512-523. Research supported by the Guggenheim Founda

Astronomy and Astrophysics

Astronomy

55

Galactic Nuclei, Infrared Astronomy, Star Formation, Virgo Galactic Cluster, Far Infrared Radiation, Galactic Bulge, Interstellar Gas, Luminosity, Spiral Galaxies

Scientific paper

A survey for 10 micron emission in the nuclei of spiral galaxies in the Virgo cluster is reported. It is found that the nuclei of most luminous spiral galaxies are active 10 micron emitters, and that the luminosity function for the sample can be represented by a simple power law over the entire range sampled. The most luminous sources at 10 microns show only a weak correlation with total optical luminosity, and no correlation with morphological type or location in the cluster. It is argued that the 10 micron flux from the Virgo galaxies arises from active star formation regions. A mean far-IR luminosity of two billion solar luminosities is inferred for the galactic nuclei; the required rate of massive star formation is 0.1 solar masses/yr. The results suggest that the rate of star formation in galactic nuclei has little relationship to the size of the nuclear bulge or the gravitational potential near the center.

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