Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...342..718g&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 342, July 15, 1989, p. 718-734.
Astronomy and Astrophysics
Astronomy
34
Galactic Clusters, Infrared Sources (Astronomy), Near Infrared Radiation, Astronomical Photometry, Galactic Evolution, Galactic Structure, Sky Surveys (Astronomy), Star Formation
Scientific paper
Near-IR magnitudes have been obtained for 136 galaxies in the Coma/A1367 supercluster region, and near-IR colors (J-H) and (H-K) for 90 and 87 objects, respectively. The near-IR colors are contained in a small range and do not depend on morphological types, galaxy inclination, or environment. Optical-to-IR colors depend strongly on a galaxy's morphological type and inclination. There is a dependence of the relative excess of radio, and to a lesser degree, of far-IR emission on recent star formation activity. The magnitude-line width relation for galaxies in Coma and A1367 obtained with these data has a larger spread than previously found with smaller samples. The data suggest a distance modulus to Coma of about 35, regardless of the choice of primary calibrators.
Gavazzi Giuseppe
Trinchieri Ginevra
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