2000MNRAS.312..433L

Query : 2000MNRAS.312..433L

2000MNRAS.312..433L - Mon. Not. R. Astron. Soc., 312, 433-441 (2000/February-3)

Dust and gas in luminous infrared galaxies - results from SCUBA observations.

LISENFELD U., ISAAK K.G. and HILLS R.

Abstract (from CDS):

We present new data taken at 850µm with SCUBA at the James Clerk Maxwell Telescope for a sample of 19 luminous infrared galaxies. Fourteen galaxies were detected. We have used these data, together with fluxes at 25, 60 and 100µm from IRAS, to model the dust emission. We find that the emission from most galaxies can be described by an optically thin, single temperature dust model with an exponent of the dust extinction coefficient (kλ∝λ–β) of β≃1.4-2. A lower β≃1 is required to model the dust emission from two of the galaxies, Arp 220 and NGC 4418. We discuss various possibilities for this difference and conclude that the most likely is a high dust opacity. In addition, we compare the molecular gas mass derived from the dust emission, M850µm, with the molecular gas mass derived from the CO emission, MCO, and find that MCO is on average a factor 2-3 higher than M850µm.

Abstract Copyright: Blackwell Science Ltd

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

CDS comments: Table 1: objects with truncated designations not in SIMBAD

Simbad objects: 22

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Number of rows : 22
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 NGC 253 SyG 00 47 33.134 -25 17 19.68   8.03   6.94 8.1 ~ 3588 2
2 NGC 891 H2G 02 22 32.907 +42 20 53.95 11.08 10.81 9.93 7.86   ~ 1741 2
3 NGC 1614 Sy1 04 34 00.027 -08 34 44.57   14.66 13.99     ~ 697 1
4 RAFGL 618 pA* 04 42 53.6242032600 +36 06 53.400902220   16.32   12.59   C-rich 1027 0
5 NGC 1667 Sy2 04 48 37.1804579280 -06 19 11.824427712   13.66 12.86 11.72   ~ 384 2
6 NGC 2623 LIN 08 38 24.016 +25 45 16.29 14.10 13.99 13.36     ~ 533 2
7 IRC +10216 C* 09 47 57.40632 +13 16 43.5648           C9,5e 2455 0
8 NGC 3110 Sy1 10 04 02.12400 -06 28 29.1250   13.4   13.3 12.5 ~ 191 2
9 IC 2810 rG 11 25 45.04728 +14 40 35.8176   15.4       ~ 140 0
10 IC 2810B rG 11 25 49.5408391632 +14 40 06.610250208   15.4       ~ 46 0
11 NGC 4194 rG 12 14 09.615 +54 31 35.93   13.79 13.30     ~ 467 2
12 NGC 4355 Sy2 12 26 54.6206739120 -00 52 39.421212996   14.21 13.37     ~ 527 2
13 Z 294-4 Sy1 12 56 14.2341182928 +56 52 25.238373852   14.68 13.84     ~ 2096 3
14 IC 883 SBG 13 20 35.37960 +34 08 21.8400   14.8       ~ 421 1
15 NGC 5135 Sy2 13 25 44.059 -29 50 01.24   12.58 13.35 11.53 12.2 ~ 500 1
16 M 51 Sy2 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 4565 4
17 NGC 5256 PaG 13 38 17.81 +48 16 41.2   14.1 13.42     ~ 449 1
18 Z 271-60 Sy2 13 44 42.1883001099 +55 53 13.596220922   15.68 14.91     ~ 958 3
19 NGC 5653 AGN 14 30 10.4187147048 +31 12 55.568509596   12.7       ~ 184 1
20 NGC 5936 AGN 15 30 00.846 +12 59 21.55   13.0       ~ 179 1
21 IC 1127 SyG 15 34 57.22396 +23 30 11.6084   14.76 13.88     ~ 3090 4
22 NGC 6240 Sy2 16 52 58.9 +02 24 03   14.31 13.37     ~ 1734 2

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