1997A&A...325L..21K


Query : 1997A&A...325L..21K

1997A&A...325L..21K - Astronomy and Astrophysics, volume 325, L21-24 (1997/9-3)

Infrared spectral energy distributions of the interacting galaxies Arp 244, NGC 6240, and Arp 220.

KLAAS U., HAAS M., HEINRICHSEN I. and SCHULZ B.

Abstract (from CDS):

For the luminous galaxies Arp 244, NGC 6240 and Arp 220 detailed infrared spectral energy distributions between 3 and 200µm obtained with ISOPHOT are presented. The maximum of the infrared energy distribution can now clearly be determined. The SEDs can be well represented by cold dust emission with temperatures of 30-50K which by far dominates the luminosity. In addition, a second warm dust component is present with temperatures of 120-160K. The infrared luminosities derived from the ISOPHOT data agree, within the errors, with the extrapolated IRAS 8-1000µm luminosities. The cold component of Arp 244 shows similarities to HII regions in normal galaxies, while NGC 6240 and Arp 220 have huge dust masses heated up to considerably higher temperatures. We discuss the observations in the context of heating by starbursts and conversion of mechanical energy from collision or outflow.

Abstract Copyright:

Journal keyword(s): Infrared: galaxies, Galaxies: photometry, fundamental parameters, starburst, individual: Arp 244, NGC 6240, Arp 220

Simbad objects: 5

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Number of rows : 5
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 NGC 4038 GiP 12 01 53.002 -18 52 03.32   10.91   9.74 11.0 ~ 1296 1
2 NAME Antennae IG 12 01 53.170 -18 52 37.92           ~ 1617 0
3 NGC 4039 GiP 12 01 53.8 -18 53 06   11.08   9.77   ~ 1145 1
4 IC 4553 SyG 15 34 57.22396 +23 30 11.6084   14.76 13.88     ~ 2822 4
5 NGC 6240 Sy2 16 52 58.861 +02 24 03.55   14.31 13.37     ~ 1556 2

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2022.05.22-22:45:07

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