1997A&A...325..450S


Query : 1997A&A...325..450S

1997A&A...325..450S - Astronomy and Astrophysics, volume 325, 450-456 (1997/9-2)

Origin of the IR continuum in the Circinus galaxy.

SIEBENMORGEN R., MOORWOOD A., FREUDLING W. and KAEUFL H.U.

Abstract (from CDS):

We present infrared and millimeter-wave observations of the Circinus galaxy which is at a distance of only 4 Mpc and provides the closest example of an obscured Seyfert nucleus surrounded by a starburst ring. The FWHM size of the continuum emission is found to be only ≃0.3" (6pc) at 3-5µm, ≃1.3" at 10µm, ≤1.5" at 20µm and ≤23" (460pc) at 1.3mm. The 1.3mm measurements also provide an estimate of ≃1.6x108M for the gas mass. It is shown using a radiative transfer code that both the observed sizes and overall spectral energy distribution, including the 9.7µm silicate absorption and 3.28-11.3µm PAH emission features, can be satisfactorily modelled by assuming that the total luminosity is dominated by dust heated by a central power law source.

Abstract Copyright:

Journal keyword(s): galaxies: individual: Circinus - infrared: galaxies - Infrared: ISM: continuum - dust, extinction

Simbad objects: 4

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Number of rows : 4
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 253 SyG 00 47 33.134 -25 17 19.68   8.03   6.94 8.1 ~ 3124 2
2 M 82 IG 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 5583 6
3 NAME Circinus Galaxy Sy2 14 13 09.906 -65 20 20.47   10.89 9.84 10.6 10.0 ~ 1093 2
4 QSO B1424-41 QSO 14 27 56.2977548952 -42 06 19.437654096   18.48 17.7 16.30   ~ 423 1

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2022.05.24-01:23:52

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