JHKL photometry of the nuclei of normal spiral galaxies

Details JHKL photometry of the nuclei of normal spiral galaxies JHKL photometry of the nuclei of normal spiral galaxies

Feb 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984pasp...96..143w&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 96, Feb. 1984, p. 143-147.

Astronomy and Astrophysics

Astronomy

40

Astronomical Photometry, Galactic Nuclei, Infrared Astronomy, Spiral Galaxies, Colorimetry, Emission Spectra, Late Stars, Magnitude

Scientific paper

Photometry with a small beam size is presented of the nuclei of five spiral galaxies selected for the absence of nuclear activity. No infrared excesses are found, and the color indices of all five galaxies are the same within the uncertainties. The emission of this sample can be explained in terms of a late-type stellar population. These results contrast with earlier results both for Seyfert nuclei and some supposedly normal spiral nuclei, which showed 3.5-μm excesses.

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