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Query : 2004MNRAS.350..769D |
2004MNRAS.350..769D - Mon. Not. R. Astron. Soc., 350, 769-784 (2004/May-3)
Discovery of the galaxy counterpart of HDF 850.1, the brightest submillimetre source in the Hubble Deep Field.
DUNLOP J.S., McLURE R.J., YAMADA T., KAJISAWA M., PEACOCK J.A., MANN R.G., HUGHES D.H., ARETXAGA I., MUXLOW T.W.B., RICHARDS A.M.S., DICKINSON M., IVISON R.J., SMITH G.P., SMAIL I., SERJEANT S., ALMAINI O. and LAWRENCE A.
Abstract (from CDS):
Here we report the discovery of the galaxy counterpart of HDF 850.1. This object has been revealed by careful analysis of a new, deep K' image of the HDF obtained with the Subaru 8.2-m telescope. Its reality is confirmed by a similar analysis of the HST NICMOS F160W image of the same region. This object is extremely faint (K≃ 23.5), clumpy (on subarcsec scales) and very red (I-K > 5.2; H-K= 1.4±0.35). The likelihood that it is the correct galaxy counterpart is strongly reinforced by a reanalysis of the combined MERLIN+VLA 1.4-GHz map of the field, which provides a new radio detection of HDF 850.1 only 0.1 arcsec from the new near-infrared counterpart, and with sufficient positional accuracy to exclude all previously considered alternative optical candidates.
We have calculated new confidence limits on the estimated redshift of HDF 850.1 in the light of the new radio detection, and find z= 4.1±0.5. We have also determined the scalelength, and hence estimated the mass of the apparently nearby (0.5 arcsec distant) z≃ 1 elliptical galaxy 3-586.0. From this we calculate that the flux density of HDF 850.1 has been boosted by a factor of ≃3 through gravitational lensing by this intervening elliptical, consistent with predictions that a small but significant fraction of blank-field submm sources are lensed by foreground galaxies. We discuss the wider implications of these results for the submm population and cosmic star formation history.
Abstract Copyright: 2004 RAS
Journal keyword(s): galaxies: evolution - galaxies: formation - galaxies: starburst - cosmology: observations - infrared: galaxies
Nomenclature: [DMY2004] HDF 850.1K N=1.
CDS comments: HDF 850.1 = [HSD98] HDF850.1
Simbad objects: 18
Number of rows : 18 |
N | Identifier | Otype |
ICRS (J2000) RA |
ICRS (J2000) DEC |
Mag U | Mag B | Mag V | Mag R | Mag I | Sp type |
#ref
1850 - 2024 |
#notes |
---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | ZW VII 31 | G | 05 16 46.384 | +79 40 12.63 | 15.8 | ~ | 150 | 0 | ||||
2 | NAME SMM J105201.25+572445.7 | smm | 10 52 01.417 | +57 24 43.04 | 26.29 | 25.52 | ~ | 48 | 1 | |||
3 | LEDA 39024 | LIN | 12 13 46.107 | +02 48 41.50 | ~ | 354 | 1 | |||||
4 | NAME Hubble Deep Field | reg | 12 36 49.5 | +62 12 58 | ~ | 1922 | 1 | |||||
5 | Cowie 19 | AGN | 12 36 51.719 | +62 12 20.22 | 24.90 | 23.6504 | 22.917 | 21.45 | 21.6164 | ~ | 93 | 0 |
6 | CXOHDFN J123651.7+621221 | G | 12 36 51.7445 | +62 12 21.438 | 27.6 | 25.80 | ~ | 84 | 0 | |||
7 | HNM 1215 | G | 12 36 51.8651 | +62 12 25.676 | 27.9 | 26.9 | 26.4 | ~ | 15 | 0 | ||
8 | [WBD96] 3-593.2 | PoG | 12 36 51.94 | +62 12 25.0 | ~ | 4 | 0 | |||||
9 | NAME SMM J123652+621225 | smm | 12 36 51.976 | +62 12 25.80 | ~ | 164 | 0 | |||||
10 | [DMY2004] HDF 850.1K | G | 12 36 52.072 | +62 12 25.75 | ~ | 2 | 0 | |||||
11 | Cowie 42 | G | 12 36 52.092 | +62 12 26.36 | 27.6889 | 26.4 | 24.3091 | ~ | 33 | 0 | ||
12 | [FLY99] 307 | G | 12 36 52.249 | +62 12 27.12 | ~ | 8 | 0 | |||||
13 | ACO 1656 | ClG | 12 59 44.40 | +27 54 44.9 | ~ | 4803 | 2 | |||||
14 | [ADH2006] 14.1 | G | 14 17 40.21 | +52 29 06.5 | 25.5 | ~ | 25 | 0 | ||||
15 | NAME MS 1512-cB58 | AGN | 15 14 22.2751 | +36 36 25.674 | 20.64 | 20.35 | ~ | 324 | 0 | |||
16 | CNOC MS 1512 101094 | G | 15 14 22.482 | +36 36 21.08 | ~ | 146 | 1 | |||||
17 | NAME SMM J16366+4105 | AGN | 16 36 58.2 | +41 05 24 | 26.0 | 24.48 | ~ | 55 | 0 | |||
18 | NAME South America | H2G | 22 51 49.307 | -17 52 23.96 | 16.97 | ~ | 327 | 3 |
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