2013A&A...559L...1B


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.10CEST03:11:33

2013A&A...559L...1B - Astronomy and Astrophysics, volume 559, L1-1 (2013/11-1)

An extended Herschel drop-out source in the center of AS 1063: a normal dusty galaxy at z = 6.1 or SZ substructures ?

BOONE F., CLEMENT B., RICHARD J., SCHAERER D., LUTZ D., WEISS A., ZEMCOV M., EGAMI E., RAWLE T.D., WALTH G.L., KNEIB J.-P., COMBES F., SMAIL I., SWINBANK A.M., ALTIERI B., BLAIN A.W., CHAPMAN S., DESSAUGES-ZAVADSKY M., IVISON R.J., KNUDSEN K.K., OMONT A., PELLO R., PEREZ-GONZALEZ P.G., VALTCHANOV I., VAN DER WERF P. and ZAMOJSKI M.

Abstract (from CDS):

In the course of our 870µm APEX/LABOCA follow-up of the Herschel Lensing Survey we have detected a source in AS1063 (RXC J2248.7-4431) that has no counterparts in any of the Herschel PACS/SPIRE bands, it is a Herschel ``drop-out'' with S870/S500≥0.5. The 870µm emission is extended and centered on the brightest cluster galaxy, suggesting either a multiply imaged background source or substructure in the Sunyaev-Zel'dovich increment due to inhomogeneities in the hot cluster gas of this merging cluster. We discuss both interpretations with emphasis on the putative lensed source. Based on the observed properties and on our lens model we find that this source may be the first submillimeter galaxy (SMG) with a moderate far-infrared (FIR) luminosity (LFIR<1012L) detected so far at z>4. In deep HST observations we identified a multiply imaged z∼6 source and measured its spectroscopic redshift to be z=6.107 with VLT/FORS. This source may be associated with the putative SMG, but it is most likely offset spatially by 10-30kpc and they may be interacting galaxies. With a FIR luminosity in the range [5-15]x1011L corresponding to a star formation rate in the range [80-260]M/yr, this SMG would be more representative of the z>4 dusty galaxies than the extreme starbursts detected so far. With a total magnification of ∼25 it would open a unique window to the normal dusty galaxies at the end of the epoch of reionization.

Abstract Copyright:

Journal keyword(s): galaxies: high-redshift - galaxies: star formation - galaxies: evolution - submillimeter: galaxies

Nomenclature: Fig. 2: [BCR2013] LN (Nos L1-L4).

Status at CDS:   All or part of tables of objects will not be ingested in SIMBAD.

Simbad objects: 7

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Number of rows : 7

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 NAME Hubble Deep Field reg 12 36 49.5 +62 12 58           ~ 1826 1
2 NAME Eyelash LeG 21 35 11.60 -01 02 52.0           ~ 183 0
3 [MSG2014] 14d LeG 22 48 41.110 -44 31 11.41         27.4 ~ 11 0
4 [MSG2014] 14b LeG 22 48 43.450 -44 32 04.66         26.4 ~ 12 0
5 [KCC2017] NE-101d LeG 22 48 45.370 -44 31 48.06         25.2 ~ 11 0
6 [MSG2014] 14a LeG 22 48 45.810 -44 32 14.86         25.9 ~ 19 0
7 ACO S 1063 ClG 22 48 54.3 -44 31 07           ~ 205 0

    Equat.    Gal    SGal    Ecl

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2020.07.10-03:11:33

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