2007A&A...475..513B


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.06CEST19:44:23

2007A&A...475..513B - Astronomy and Astrophysics, volume 475, 513-517 (2007/11-4)

Millimeter observations of HCM6A, a gravitationally lensed Lyα emitting galaxy at z = 6.56.

BOONE F., SCHAERER D., PELLO R., COMBES F. and EGAMI E.

Abstract (from CDS):

The gravitationally lensed Lyα emitting galaxy, HCM6A, detected by Hu et al. (2002ApJ...568L..75H) at z=6.56 behind the Abell370 cluster was observed with the MAMBO-2 array of bolometers at 1.2mm wavelength. The galaxy was not detected down to 1.08mJy (3 σ), but the depth of the observations and the lens amplification allow us to improve by approximately one order of magnitude previously published upper limits on far infrared emission of Lyα emitting galaxies at this redshift. The following upper limits are derived from our observations, assuming typical dust parameters: dust mass <5.3x107M, IR luminosity <2.1x1011L, and star formation rate <35M/yr. The observed restframe UV-optical-IR spectral energy distribution (SED) of this galaxy is compatible with that of normal spiral galaxies or blue compact dwarf galaxies. SEDs of prototypical ULIRGs, such as Arp 220, are clearly excluded. Finally, we obtain an upper limit of ≲2.1x10–2M/yr/Mpc3 for the dust-obscured SFR density of Lyα selected galaxies at z∼6.6.

Abstract Copyright:

Journal keyword(s): Galaxy: formation - galaxies: high-redshift - galaxies: clusters: lensing - gravitational lensing - Galaxy: evolution - submillimeter - infrared: galaxies

Simbad objects: 8

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Number of rows : 8

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 ACO 370 ClG 02 39 50.5 -01 35 08           ~ 639 0
2 [CBK2002] 4 smm 02 39 53.83 -01 33 37.0           ~ 3 0
3 NAME HCM 6A EmG 02 39 54.73 -01 33 32.3           ~ 46 0
4 NAME SMM J02400-0134 smm 02 40.0 -01 34           ~ 9 0
5 M 82 IG 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 5332 6
6 SDSS J114816.64+525150.3 QSO 11 48 16.647 +52 51 50.31   25.73 25.04     ~ 391 0
7 IC 4553 SyG 15 34 57.22396 +23 30 11.6084   14.76 13.88     ~ 2681 4
8 NGC 6946 H2G 20 34 52.332 +60 09 13.24   10.5       ~ 2234 2

    Equat.    Gal    SGal    Ecl

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2020.07.06-19:44:23

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