Bibcode
Rowan-Robinson, M.; Lari, C.; Perez-Fournon, I.; Gonzalez-Solares, E. A.; La Franca, F.; Vaccari, M.; Oliver, S.; Gruppioni, C.; Ciliegi, P.; Héraudeau, P.; Serjeant, S.; Efstathiou, A.; Babbedge, T.; Matute, I.; Pozzi, F.; Franceschini, A.; Vaisanen, P.; Afonso-Luis, A.; Alexander, D. M.; Almaini, O.; Baker, A. C.; Basilakos, S.; Barden, M.; del Burgo, C.; Bellas-Velidis, I.; Cabrera-Guerra, F.; Carballo, R.; Cesarsky, C. J.; Clements, D. L.; Crockett, H.; Danese, L.; Dapergolas, A.; Drolias, B.; Eaton, N.; Egami, E.; Elbaz, D.; Fadda, D.; Fox, M.; Genzel, R.; Goldschmidt, P.; Gonzalez-Serrano, J. I.; Graham, M.; Granato, G. L.; Hatziminaoglou, E.; Herbstmeier, U.; Joshi, M.; Kontizas, E.; Kontizas, M.; Kotilainen, J. K.; Kunze, D.; Lawrence, A.; Lemke, D.; Linden-Vørnle, M. J. D.; Mann, R. G.; Márquez, I.; Masegosa, J.; McMahon, R. G.; Miley, G.; Missoulis, V.; Mobasher, B.; Morel, T.; Nørgaard-Nielsen, H.; Omont, A.; Papadopoulos, P.; Puget, J.-L.; Rigopoulou, D.; Rocca-Volmerange, B.; Sedgwick, N.; Silva, L.; Sumner, T.; Surace, C.; Vila-Vilaro, B.; van der Werf, P.; Verma, A.; Vigroux, L.; Villar-Martin, M.; Willott, C. J.; Carramiñana, A.; Mujica, R.
Bibliographical reference
Monthly Notices of the Royal Astronomical Society, Volume 351, Issue 4, pp. 1290-1306.
Advertised on:
7
2004
Citations
134
Refereed citations
119
Description
We present the final band-merged European Large-Area ISO Survey (ELAIS)
Catalogue at 6.7, 15, 90 and 175 μm, and the associated data at U,
g', r', i', Z, J, H, K and 20 cm. The origin of the survey, infrared and
radio observations, data-reduction and optical identifications are
briefly reviewed, and a summary of the area covered and the completeness
limit for each infrared band is given. A detailed discussion of the
band-merging and optical association strategy is given. The total
Catalogue consists of 3762 sources. 23 per cent of the 15-μm sources
and 75 per cent of the 6.7-μm sources are stars. For extragalactic
sources observed in three or more infrared bands, colour-colour diagrams
are presented and discussed in terms of the contributing infrared
populations. Spectral energy distributions (SEDs) are shown for selected
sources and compared with cirrus, M82 and Arp220 starburst, and active
galactic nuclei (AGN) dust torus models.
Spectroscopic redshifts are tabulated, where available. For the N1 and
N2 areas, the Isaac Newton Telescope ugriz Wide Field Survey permits
photometric redshifts to be estimated for galaxies and quasars. These
agree well with the spectroscopic redshifts, within the uncertainty of
the photometric method [~10 per cent in (1 +z) for galaxies]. The
redshift distribution is given for selected ELAIS bands and
colour-redshift diagrams are discussed.
There is a high proportion of ultraluminous infrared galaxies
(log10 of 1-1000 μm luminosity Lir > 12.22)
in the ELAIS Catalogue (14 per cent of 15-μm galaxies with known z),
many with Arp220-like SEDs. 10 per cent of the 15-μm sources are
genuine optically blank fields to r'= 24: these must have very high
infrared-to-optical ratios and probably have z > 0.6, so are
high-luminosity dusty starbursts or Type 2 AGN. Nine hyperluminous
infrared galaxies (Lir > 13.22) and nine extremely red
objects (EROs) (r-K > 6) are found in the survey. The latter are
interpreted as ultraluminous dusty infrared galaxies at z~ 1. The large
numbers of ultraluminous galaxies imply very strong evolution in the
star formation rate between z= 0 and 1. There is also a surprisingly
large population of luminous (Lir > 11.5), cool
(cirrus-type SEDs) galaxies, with Lir-Lopt > 0,
implying AV > 1.