2009MNRAS.398.1615C

Query : 2009MNRAS.398.1615C

2009MNRAS.398.1615C - Mon. Not. R. Astron. Soc., 398, 1615-1620 (2009/October-1)

Submillimetre detection of the z = 2.83 Lyman-break galaxy, Westphal-MM8, and implications for SCUBA2.

CHAPMAN S.C. and CASEY C.M.

Abstract (from CDS):

We present confusion-limited submillimetre (submm) observations with the Submillimetre Common-User Bolometer Array (SCUBA) camera on the James Clerk Maxwell Telescope of the z = 2.83 Lyman-break galaxy (LBG), Westphal-MM8, reaching an 850µm sensitivity even greater than that achieved in the SCUBA map of the Hubble Deep Field region. The detection of MM8 (S850µm = 1.98±0.48mJy), along with the literature submm detections of lensed LBGs, suggests that the LBG population may contribute significantly to the source counts of submm-selected galaxies in the 1-2mJy regime. Additionally, submm-luminous LBGs are a viable progenitor population for the recently discovered evolved galaxies at z ∼ 2-2.5. These observations represent an important baseline for SCUBA2 observations which will regularly map large regions of the sky to this depth.

Abstract Copyright: © 2009 The Authors. Journal compilation © 2009 RAS

Journal keyword(s): galaxies: active - galaxies: formation - galaxies: individual: Westphal MM8 - infrared: galaxies

Nomenclature: Fig. 1, Table 1: Westphal AAANNN (No. SMG1) added.

Simbad objects: 13

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Number of rows : 13
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 [LGH99] MS 0456.6-0305 A1 G 04 54 12.95 -03 00 54.8           ~ 8 1
2 M 82 AGN 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 6156 6
3 CSWA 1 gLS 11 48 33.10 +19 30 03.2           ~ 90 0
4 NAME Hubble Deep Field reg 12 36 49.5 +62 12 58           ~ 1967 1
5 NAME SMM J141809.8+522205 G 14 18 09.73 +52 22 01.3           ~ 27 0
6 SAS-LBG Westphal-M8 G 14 18 23.92 +52 23 07.7           ~ 9 0
7 Westphal SMG1 G 14 18 29.57 +52 22 54.4           ~ 1 0
8 NAME MS 1512-cB58 AGN 15 14 22.2751 +36 36 25.674     20.64   20.35 ~ 326 0
9 IC 1127 SyG 15 34 57.22396 +23 30 11.6084   14.76 13.88     ~ 3090 4
10 ACO 2218 ClG 16 35 54.0 +66 13 00           ~ 827 1
11 NAME SMM J16359+6613 G 16 35 55.62 +66 12 59.5           ~ 62 1
12 [KBV2006] SMM J163602.6+661255 smm 16 36 02.6 +66 12 55           ~ 2 0
13 NAME Cosmic Eye G 21 35 12.730 -01 01 42.90           ~ 92 0

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