Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...306..483j&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 306, July 15, 1986, p. 483-489. NASA-NSF-supported research.
Astronomy and Astrophysics
Astronomy
96
Galaxies, Infrared Astronomy, Interstellar Matter, Stellar Evolution, Cosmic Dust, X Ray Sources
Scientific paper
IRAS fluxes of early-type galaxies have been examined. From studying a magnitude-limited sample, it seems that although the statistics are poor, perhaps a third of these objects and possibly even more have an appreciable amount of dust. In general, the infrared emission is strongest at 100 microns, and quite often the far-infrared luminosity of an early-type galaxy can be well in excess of 10 to the 8th solar luminosities. The data are most easily understood if the infrared results from dust reprocessing of starlight. Within 3 kpc of the center of an early-type galaxy, there may be more cold matter than hot gas; recent models that the interstellar media of these objects are composed primarily of hot gas appear to be oversimplifications. The X-ray data do indicate that the thermal pressure in the early-type galaxies often is sufficiently high that in view of the expected low temperatures of their interstellar clouds, it can be speculated that the cold material that is present may be forming low-mass stars.
No associations
LandOfFree
Cool interstellar matter in early-type galaxies does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Cool interstellar matter in early-type galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cool interstellar matter in early-type galaxies will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1654783