The mid-infrared emission from early-type galaxies

Details The mid-infrared emission from early-type galaxies The mid-infrared emission from early-type galaxies

Mar 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999esasp.427..933m&link_type=abstract

The Universe as Seen by ISO. Eds. P. Cox & M. F. Kessler. ESA-SP 427., p. 933

Astronomy and Astrophysics

Astronomy

13

Mid-Infrared Astronomy, Elliptical Galaxies, Dust

Scientific paper

We have conducted a survey of E and S0 galaxies using ISOCAM's imaging broad band filters covering 4.5 to 18 μm, to probe the dust content of early-type galaxies. While emission from the evolved stellar population can be dominant in the mid-infrared, dust in the form of either small hot grains and/or UIBs can also be shown to be present in some cases. Several galaxies in our sample are dominated in the mid-infrared by non-thermal nuclear activity. Due to the high sensitivity and high resolution of ISO, we can begin to comprehend the origin and distribution of the mid-infrared emission from early-type galaxies.

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