Open AccessThe European Large Area ISO Survey – III. 90‐ μ m extragalactic source counts
Author(s) -
Efstathiou Andreas,
Oliver Seb,
RowanRobinson Michael,
Surace C.,
Sumner T.,
Héraudeau P.,
LindenVørnle M. J. D.,
Rigopoulou D.,
Serjeant S.,
Mann R. G.,
Cesarsky C. J.,
Danese L.,
Franceschini A.,
Genzel R.,
Lawrence A.,
Lemke D.,
McMahon R. G.,
Miley G.,
Puget J.L.,
RoccaVolmerange B.
Publication year - 2000
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1046/j.1365-8711.2000.03914.x
Subject(s) - physics , astrophysics , galaxy , source counts , sky , luminous infrared galaxy , astronomy , observatory , infrared , population , redshift , medicine , environmental health
We present results and source counts at 90 μm extracted from the preliminary analysis of the European Large Area ISO Survey (ELAIS). The survey covered about 12 deg 2 of the sky in four main areas and was carried out with the ISOPHOT instrument onboard the Infrared Space Observatory ( ISO ). The survey is at least an order of magnitude deeper than the IRAS 100‐μm survey and is expected to provide constraints on the formation and evolution of galaxies. The majority of the detected sources are associated with galaxies on optical images. In some cases the optical associations are interacting pairs or small groups of galaxies, suggesting that the sample may include a significant fraction of luminous infrared galaxies. The source counts extracted from a reliable subset of the detected sources are in agreement with strongly evolving models of the starburst galaxy population.