2006ApJ...640..228T


C.D.S. - SIMBAD4 rel 1.7 - 2020.05.27CEST09:03:25

2006ApJ...640..228T - Astrophys. J., 640, 228-240 (2006/March-3)

High-resolution millimeter imaging of submillimeter galaxies.

TACCONI L.J., NERI R., CHAPMAN S.C., GENZEL R., SMAIL I., IVISON R.J., BERTOLDI F., BLAIN A., COX P., GREVE T. and OMONT A.

Abstract (from CDS):

We present ∼0".6 resolution IRAM PdBI interferometry of eight submillimeter galaxies at z∼2-3.4, where we detect continuum at 1 mm and/or CO lines at 3 and 1 mm. The CO 3-2/4-3 line profiles in five of the sources are double-peaked, indicative of orbital motion either in a single rotating disk or of a merger of two galaxies. The millimeter line and continuum emission is compact; we marginally resolve the sources or obtain tight upper limits to their intrinsic sizes in all cases. The median FWHM diameter for these sources and the previously resolved sources, SMM J023952-0136 and SMM J140104+0252, is ≤0".5 (4 kpc). The compactness of the sources does not support a scenario in which the far-IR/submillimeter emission comes from a cold (T<30 K), very extended dust distribution. These measurements clearly show that the submillimeter galaxies (SMGs) we have observed resemble scaled-up and more gas-rich versions of the local universe, ultraluminous galaxy population. Their central densities and potential well depths are much greater than those in other z∼2-3 galaxy samples studied so far. They are comparable to those of elliptical galaxies or massive bulges. The SMG properties fulfill the criteria of ``maximal'' starbursts, in which most of the available initial gas reservoir of 1010-1011 M is converted to stars on a timescale ∼3-10tdyn∼a few times 108 yr.

Abstract Copyright:

Journal keyword(s): Cosmology: Observations - Galaxies: Evolution - Galaxies: Formation - Galaxies: High-Redshift - Galaxies: ISM

CDS comments: HDF 76 and 242 not identified, HDF 76 = NAME SMM J123549.44+621536.8, HDF 242 = NAME SMM J123707.21+621408.1

Simbad objects: 18

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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 - 2020
#notes
1 NAME SMM J02399-0136 G 02 39 51.87 -01 35 58.8       21.20   ~ 178 2
2 NAME SMM J023952-0136 Sy2 02 39 51.9 -01 35 58     21.90     ~ 39 0
3 NAME SMM J04431+0210 GiC 04 43 05.8 +02 09 06           ~ 44 0
4 CAIRNS J044306.09+020955.5 GiC 04 43 06.09 +02 09 55.5           ~ 5 0
5 ClG 0440+02 ClG 04 43 09.7 +02 10 19     17.03     ~ 118 0
6 ACO 851 ClG 09 42 56.6 +46 59 22           ~ 308 0
7 [BCS99b] Cl 0939+47 H07 Rad 09 43 03.70 +47 00 15.1           ~ 12 0
8 NAME SMM J09431+4700 AGN 09 43 03.96 +47 00 16.0       23.80   ~ 41 0
9 NAME SMM J123549.44+621536.8 AGN 12 35 49.4 +62 15 37 24.6 23.9 23.6 23.3 23.1 ~ 51 0
10 NAME Hubble Deep Field reg 12 36 49.5 +62 12 58           ~ 1821 1
11 NAME SMM J123707.2+621408 AGN 12 37 07.2086 +62 14 08.499 28.12 26.9 26.6 25.6 25.4 ~ 70 0
12 [BCS99b] ACO 1835 J2 GiC 14 01 04.806 +02 52 24.73           ~ 18 0
13 NAME SMM J14011+0252 GiC 14 01 04.95 +02 52 24.0           ~ 151 1
14 NAME SMM J16358+6612.1 LeI 16 35 50.96 +66 12 05.5           ~ 13 0
15 NAME SMM J16359+6612.6 LeI 16 35 55.18 +66 12 37.2           ~ 18 0
16 NAME SMM J163650.43+405734.5 AGN 16 36 50.5 +40 57 34   23.3 23.30   21.83 ~ 82 0
17 NAME SMM J16366+4105 AGN 16 36 58.2 +41 05 24   26.0     24.48 ~ 52 0
18 EM* MWC 349 ** 20 32 45.499080 +40 39 36.74124   15.88 13.15 12.13   Bep 700 0

    Equat.    Gal    SGal    Ecl

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2020.05.27-09:03:25

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