Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...279..563b&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 279, April 15, 1984, p. 563-566. Research supported by the Alfred P. Sloan
Astronomy and Astrophysics
Astronomy
17
Galactic Radiation, Hydrogen Recombinations, Infrared Astronomy, Spiral Galaxies, Early Stars, Emission Spectra, Galactic Nuclei, Line Spectra, Stellar Luminosity
Scientific paper
Observations of infrared hydrogen recombination line emission are presented for several positions within the galaxies NGC 1068, NGC 1097, NGC 2903, and NGC 4151. Emission is seen from the arms and nuclei of these spiral galaxies. The luminosity from the most recent burst of star formation is deduced and compared to the infrared luminosity which accounts for the bulk of the total energy. Young stars (primarily O and B stars) provide most of the luminosity in the arms and nuclei of the normal galaxies NGC 1097 and NGC 2903. The infrared luminosities of the nuclei in the Seyfert galaxies NGC 1068 and NGC 4151 exceed those provided by young stars by factors of approximately 10.
Beck Sara C.
Beckwith Steve
Gatley Ian
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