Astronomy and Astrophysics – Astronomy
Scientific paper
May 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987nascp2466..547h&link_type=abstract
Star formation in galaxies, Proceedings of a conference at the California Institute of Technology, Pasadena, California, June 16
Astronomy and Astrophysics
Astronomy
1
Faint Objects, Far Infrared Radiation, Galactic Evolution, Point Sources, Radiant Flux Density, Stellar Color, Astronomical Maps, Infrared Astronomy Satellite, Milky Way Galaxy, Red Shift, Sky Surveys (Astronomy), Space Density, Star Formation, Stellar Luminosity
Scientific paper
A deep far-infrared survey is presented using over 1000 scans made of a 4 to 6 sq. deg. field at the north ecliptic pole by the IRAS. Point sources from this survey are up to 100 times fainter than the IRAS point source catalog at 12 and 25 micrometers, and up to 10 times fainter at 60 and 100 micrometers. The 12 and 25 micrometer maps are instrumental noise-limited, and the 60 and 100 micrometer maps are confusion noise-limited. The majority of the 12 micrometer point sources are stars within the Milky Way. The 25 micrometer sources are composed almost equally of stars and galaxies. About 80% of the 60 micrometer sources correspond to galaxies on Palomar Observatory Sky Survey (POSS) enlargements. The remaining 20% are probably galaxies below the POSS detection limit. The differential source counts are presented and compared with what is predicted by the Bahcall and Soneira Standard Galaxy Model using the B-V-12 micrometer colors of stars without circumstellar dust shells given by Waters, Cote and Aumann. The 60 micrometer source counts are inconsistent with those predicted for a uniformly distributed, nonevolving universe. The implications are briefly discussed.
Hacking Perry
Houck James R.
No associations
LandOfFree
A very deep IRAS survey at l(II) = 97 deg, b(II) = +30 deg 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 A very deep IRAS survey at l(II) = 97 deg, b(II) = +30 deg, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A very deep IRAS survey at l(II) = 97 deg, b(II) = +30 deg will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-859545