2011MNRAS.416..857S


C.D.S. - SIMBAD4 rel 1.7 - 2021.04.19CEST14:42:06

2011MNRAS.416..857S - Mon. Not. R. Astron. Soc., 416, 857-872 (2011/September-2)

Herschel–ATLAS: counterparts from the ultraviolet–near-infrared in the science demonstration phase catalogue.

SMITH D.J.B., DUNNE L., MADDOX S.J., EALES S., BONFIELD D.G., JARVIS M.J., SUTHERLAND W., FLEUREN S., RIGBY E.E., THOMPSON M.A., BALDRY I.K., BAMFORD S., BUTTIGLIONE S., CAVA A., CLEMENTS D.L., COORAY A., CROOM S., DARIUSH A., DE ZOTTI G., DRIVER S.P., DUNLOP J.S., FRITZ J., HILL D.T., HOPKINS A., HOPWOOD R., IBAR E., IVISON R.J., JONES D.H., KELVIN L., LEEUW L., LISKE J., LOVEDAY J., MADORE B.F., NORBERG P., PANUZZO P., PASCALE E., POHLEN M., POPESCU C.C., PRESCOTT M., ROBOTHAM A., RODIGHIERO G., SCOTT D., SEIBERT M., SHARP R., TEMI P., TUFFS R.J., VAN DER WERF P. and VAN KAMPEN E.

Abstract (from CDS):

We present a technique to identify optical counterparts of 250-µm-selected sources from the Herschel–ATLAS survey. Of the 6621 250 µm > 32-mJy sources in our science demonstration catalogue we find that ∼60 per cent have counterparts brighter than r = 22.4 mag in the Sloan Digital Sky Survey. Applying a likelihood ratio technique we are able to identify 2423 of the counterparts with a reliability R > 0.8. This is approximately 37 per cent of the full 250-µm catalogue. We have estimated photometric redshifts for each of these 2423 reliable counterparts, while 1099 also have spectroscopic redshifts collated from several different sources, including the GAMA survey. We estimate the completeness of identifying counterparts as a function of redshift, and present evidence that 250-µm-selected Herschel–ATLAS galaxies have a bimodal redshift distribution. Those with reliable optical identifications have a redshift distribution peaking at z ≈ 0.25±0.05, while submillimetre colours suggest that a significant fraction with no counterpart above the r-band limit have z > 1. We also suggest a method for selecting populations of strongly lensed high-redshift galaxies. Our identifications are matched to UV–NIR photometry from the GAMA survey, and these data are available as part of the Herschel–ATLAS public data release.

Herschel is an ESA space observatory with science instruments provided by European-led Principal Investigator consortia and with important participation from NASA.


Abstract Copyright: 2011 The Authors Monthly Notices of the Royal Astronomical Society2011 RAS

Journal keyword(s): methods: statistical - submillimetre: galaxies

Simbad objects: 12

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Number of rows : 12

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 NAME GOODS Southern Field reg 03 32 28.0 -27 48 30           ~ 1118 1
2 IRAS F08555+0145 IR 08 58 07.8 +01 33 50           ~ 2 0
3 H-ATLAS J090130.2-000215 smm 09 01 30.211 -00 02 15.98           ~ 1 0
4 IRAS F08598-0103 IR 09 02 26.2 -01 15 44           ~ 2 0
5 IRAS F08599+0139 IR 09 02 30.6 +01 27 36           ~ 2 0
6 2MASX J09033081-0106127 G 09 03 30.813 -01 06 12.80   16.23   14.86   ~ 9 0
7 IRAS F09009-0054 IR 09 03 32.1 -01 06 46           ~ 2 0
8 H-ATLAS J090631.3+004605 smm 09 06 31.380 +00 46 05.19           ~ 1 0
9 IRAS F09047-0040 IR 09 07 21.1 -00 52 21           ~ 2 0
10 H-ATLAS J090913.2+012111 smm 09 09 13.284 +01 21 11.36           ~ 1 0
11 M 82 IG 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 5446 6
12 IC 4553 SyG 15 34 57.22396 +23 30 11.6084   14.76 13.88     ~ 2741 4

    Equat.    Gal    SGal    Ecl

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