NDLI: Extended far-infrared emission and star formation in seyfert galaxies

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Extended far-infrared emission and star formation in seyfert galaxies

Content Provider	NASA Technical Reports Server (NTRS)
Author	Marston, A. P.
Copyright Year	1994
Description	An investigation into the extended distribution of far-infrared (FIR) emission associated with nearby Seyfert galaxies is made using a set of MEM reconstructions of IRAS Chopped Photometric Channel (CPC) data (Marston 1993). The data is compared to a set of HII/starburst galaxy images similarly processed in order to compare distributions and FIR color properties. It is shown that the central 1 kpc or so of Seyfert galaxies show extended FIR emission. FIR colors suggest that the bulk of this emission is not directly associated with an active nucleus. They further suggest that the origins of the majority of the emission is from heated dust associated with star formation surrounding the nucleus rather than dust heated by the active nucleus. Nearby Seyfert galaxies are shown to have a higher concentration of far-infrared emission from their centers than the HII/starburst galaxies and a number appear to reside in disk galaxies with relatively low ongoing star formation in their disks. An example of this is NGC 7582 which has a smooth disk but an active nucleus/starbust center.
File Size	281836
Page Count	8
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19950015347
Archival Resource Key	ark:/13960/t6tx8817c
Language	English
Publisher Date	1994-04-01
Access Restriction	Open
Subject Keyword	Documentation And Information Science Seyfert Galaxies Dust Star Formation Disk Galaxies Stellar Evolution Infrared Astronomy Satellite Photometry Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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