Astronomy and Astrophysics – Astrophysics – Cosmology and Extragalactic Astrophysics
Scientific paper
2011-06-08
Astronomy and Astrophysics
Astrophysics
Cosmology and Extragalactic Astrophysics
Letter accepted for publication in A&A; final version after shortening and language editing
Scientific paper
We analyse Herschel/SPIRE images of the edge-on spiral galaxy NGC 891 at 250, 350 and 500 micron. Using a 3D radiative transfer model we confirm that the dust has a radial fall-off similar to the stellar disk. The dust disk shows a break at about 12 kpc from the center, where the profile becomes steeper. Beyond this break, emission can be traced up to 90% of the optical disk in the NE side. On 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.
Bianchi Simone
Xilouris Emmanuel
No associations
LandOfFree
The extent of dust in NGC 891 from Herschel/SPIRE images does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The extent of dust in NGC 891 from Herschel/SPIRE images, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The extent of dust in NGC 891 from Herschel/SPIRE images will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-320014