The spatial distribution of 10 micron luminosity in spiral galaxies

Details The spatial distribution of 10 micron luminosity in spiral galaxies The spatial distribution of 10 micron luminosity in spiral galaxies

Dec 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...323...91d&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 323, Dec. 1, 1987, p. 91-107.

Astronomy and Astrophysics

Astronomy

98

Astronomical Photometry, Galactic Nuclei, Infrared Spectra, Luminosity, Spatial Distribution, Spiral Galaxies, Galactic Structure, Hubble Constant, Infrared Astronomy Satellite, Star Formation

Scientific paper

Ground-based photometry combined with the IRAS photometry has permitted a study of the spatial distribution of infrared emission in spiral galaxies of a wide range in Hubble type and luminosity. 40% of the early-type barred spirals are associated with enhanced 10 μm luminosity in the central region. High central 10 μm luminosity is not seen in early-type unbarred or late-type galaxies. It is therefore concluded that stellar bars are important for high central infrared luminosity in early-type spirals. The origin of the high central 10 μm luminosity in early-type barred spirals is attributed to star formation or Seyfert activity or both.

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