2004MNRAS.349.1428S


C.D.S. - SIMBAD4 rel 1.7 - 2021.04.19CEST14:16:31

2004MNRAS.349.1428S - Mon. Not. R. Astron. Soc., 349, 1428-1434 (2004/April-3)

Revised masses of dust and gas of SCUBA Local Universe Survey far-infrared bright galaxies based on a recent CO survey.

SEAQUIST E., YAO L., DUNNE L. and CAMERON H.

Abstract (from CDS):

Recent CO measurements of an essentially complete subsample of galaxies from the SCUBA Local Universe Survey (SLUGS) are used to examine their implications for dust and gas masses in this sample. Estimates of dust masses are affected by a contribution to the SCUBA brightness measurements by CO(3-2) emission, and molecular gas masses by the use of a modified value of the CO-to-H2conversion factor X. The average dust mass is reduced by 25-38 per cent, which has no bearing on earlier conclusions concerning the shape of the dust mass luminosity function derived from the SLUGS. The value of X found from the CO survey, when applied together with the reduction in dust masses, leads to lower estimates for the mean gas-to-dust mass ratios, where the gas includes both H2and H i. For the CO sample, the mean global ratio is reduced from approximately 430 to about 320-360, but is further reduced to values near 50 when applied to the nuclear regions relevant to the CO observations. We discuss these results and suggest that the differences between the nuclear and outer regions may simply reflect differences in metallicity or the existence of considerable amounts of unobserved cold dust in the outer regions of these galaxies.

Abstract Copyright: 2004 RAS

Journal keyword(s): dust, extinction - ISM: molecules - galaxies: ISM - galaxies: starburst - infrared: galaxies

Simbad objects: 19

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Number of rows : 19

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 NAME V380 Ori-NE * 05 36 40.6 -06 38 03           ~ 36 0
2 NGC 3110 H2G 10 04 02.124 -06 28 29.12   13.4   13.3 12.5 ~ 146 3
3 NGC 3221 G 10 22 19.988 +21 34 10.56   14.3       ~ 123 1
4 NGC 3583 GiP 11 14 10.979 +48 19 06.16   11.6       ~ 181 1
5 NGC 3994 LIN 11 57 36.866 +32 16 39.45   13.51 12.87     ~ 171 1
6 NGC 3995 rG 11 57 44.098 +32 17 38.64   12.81       ~ 156 0
7 NGC 4038 GiP 12 01 53.002 -18 52 03.32   10.91   9.74 11.0 ~ 1287 1
8 NAME Antennae IG 12 01 53.170 -18 52 37.92           ~ 1581 0
9 NGC 4039 GiP 12 01 53.8 -18 53 06   11.08   9.77   ~ 1137 1
10 NGC 5104 rG 13 21 23.115 +00 20 33.38   14.5   13.227   ~ 129 0
11 UGC 8739 GiG 13 49 13.912 +35 15 27.04   14.7       ~ 104 1
12 NGC 5433 rG 14 02 36.065 +32 30 37.54   14.0       ~ 78 1
13 NGC 5600 GiG 14 23 49.541 +14 38 19.45   11.9       ~ 84 0
14 NGC 5665 IG 14 32 25.796 +08 04 42.43   12.6       ~ 128 0
15 NGC 5900 GiP 15 15 05.017 +42 12 35.47   14.43 13.39     ~ 96 0
16 NGC 5936 H2G 15 30 00.846 +12 59 21.55   13.0       ~ 152 1
17 NGC 6052 IG 16 05 12.8707837896 +20 32 32.613940524 13.01 13.44 13.00     ~ 338 2
18 M 8 HII 18 03 37 -24 23.2           ~ 564 1
19 NGC 7469 Sy1 23 03 15.674 +08 52 25.28 12.60 13.00 12.34     ~ 1923 3

    Equat.    Gal    SGal    Ecl

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2021.04.19-14:16:31

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