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Structure in the nucleus of NGC 1068 at 10 microns
- Source :
- NASA, Washington Star Formation in Galaxies.
- Publication Year :
- 1987
- Publisher :
- United States: NASA Center for Aerospace Information (CASI), 1987.
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Abstract
- New 8 to 13 micron array camera images of the central kiloparsec of Seyfert 2 galaxy NGC 1068 resolve structure that is similar to that observed at visible and radio wavelengths. The images reveal an infrared source which is extended and asymmetric, with its long axis oriented at P.A. 33 deg. Maps of the spatial distribution of 8 to 13 micron color temperature and warm dust opacity are derived from the multiwavelength infrared images. The results suggest that there exist two pointlike luminosity sources in the central regions of NGC 1068, with the brighter source at the nucleus and the fainter one some 100 pc to the northeast. This geometry strengthens the possibility that the 10 micron emission observed from grains in the nucleus is powered by a nonthermal source. In the context of earlier visible and radio studies, these results considerably strengthen the case for jet induced star formation in NGC 1068.
- Subjects :
- Astrophysics
Subjects
Details
- Language :
- English
- Database :
- NASA Technical Reports
- Journal :
- NASA, Washington Star Formation in Galaxies
- Publication Type :
- Report
- Accession number :
- edsnas.19870014937
- Document Type :
- Report