2011A&A...531L..11B


Query : 2011A&A...531L..11B

2011A&A...531L..11B - Astronomy and Astrophysics, volume 531, L11-11 (2011/7-1)

The extent of dust in NGC 891 from Herschel/SPIRE images.

BIANCHI S. and XILOURIS E.M.

Abstract (from CDS):

We analyse Herschel/SPIRE images of the edge-on spiral galaxy NGC 891 at 250, 350, and 500µm. Using a 3D radiative transfer model we confirm that the dust has radial fall-off similar to the stellar disk. The dust disk shows a break at about 12kpc from the centre, where the profile becomes steeper. Beyond this break, emission can be traced up to 90% of the optical disk on the NE side. To the SW, we confirm dust emission associated with the extended, asymmetric HI disk, previously detected by the Infrared Space Observatory (ISO). This emission is marginally consistent with the large diffuse dust disk inferred from radiative transfer fits to optical images. No excess emission is found above the plane beyond that of the thin, unresolved, disk.

Abstract Copyright:

Journal keyword(s): galaxies: individual: NGC 891 - galaxies: spiral - dust, extinction - submillimeter: galaxies - radiative transfer

Simbad objects: 3

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Number of rows : 3
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 UGC 1807 G 02 21 13.40 +42 45 45.7   11.26   14.38   ~ 37 0
2 [LB2005] NGC 891 X4 QSO 02 22 24.4 +42 21 38       17.410   ~ 9 0
3 NGC 891 H2G 02 22 32.907 +42 20 53.95 11.08 10.81 9.93 7.86   ~ 1567 2

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2021.09.24-07:50:16

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