Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984mnras.211..461g&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 211, Nov. 15, 1984, p. 461-469.
Astronomy and Astrophysics
Astronomy
59
Astronomical Photometry, Colorimetry, Galactic Radiation, Astronomical Catalogs, Elliptical Galaxies, Infrared Astronomy, Lenticular Bodies, Spiral Galaxies
Scientific paper
Accurate JHK photometry is presented for 19 elliptical, 10 lenticular, 29 "ordinary" spiral galaxies, and 1 Im type on the SAAO photometric system which has well-defined transformations to the Caltech/CTIO and AAO systems. The groups having the highest degree of colour uniformity are the ellipticals and lenticulars. "Ordinary", or inactive spirals, show slightly more scatter; late types are bluer than average in J-H and emission-line galaxies are redder in H-K. In general, the infrared and V-K colours determined here agree well with previous work. However, no evidence for significant change of infrared colour with radius has been seen, in contrast to the results of some other workers.
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