Infrared properties of dusty elliptical galaxies

Details Infrared properties of dusty elliptical galaxies Infrared properties of dusty elliptical galaxies

Jun 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988cha%26a..12..110h&link_type=abstract

Chinese Astronomy and Astrophysics, Volume 12, Issue 2, p. 110-113.

Astronomy and Astrophysics

Astronomy

1

Galaxies, Infrared Astronomy, Interstellar Dust

Scientific paper

From published sources including the IRAS survey, we collected a sample of 6 E and SO galaxies with dust lanes and a comparative sample of 32 such galaxies without dust lanes. We applied the non-parametric U-test to the distributions of infrared luminosity and infrared/visible colour of the two samples and found that the distributions are not statistically different at the 5% level. Thus, there is no evidence, at this level, that dust lanes in ellipticals are sites of intensive star formation with strong infrared emission. On the infrared two-colour diagram, ellipticals without dust lanes are located in the same region as normal galaxies, while some of those with dust lanes are located far off the region; these are often active galaxies.

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