Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982aj.....87.1671d&link_type=abstract
Astronomical Journal, vol. 87, Dec. 1982, p. 1671-1678.
Astronomy and Astrophysics
Astronomy
20
Brightness Distribution, Continuous Radiation, Galactic Nuclei, Galactic Radio Waves, Spiral Galaxies, Astronomical Maps, Astronomical Models, Disk Galaxies, Galactic Radiation, H Ii Regions, Nonthermal Radiation
Scientific paper
The radio emission of NGC 4631 is analyzed and found to have many components, including a thermal nuclear component, a nonthermal nuclear component, a nonthermal ring of emission, a nonthermal disk emission, and a weak, clumpy, probably thermal emission from H II regions. General disk emission, which is found to be confined to the optical disk, consists of a strong nonthermal component and a weak, possibly thermal, component associated with H II regions. The nuclear region consists of a triple, the outer two components of which are connected by a ridge of emission. This feature is well modeled with a torus of uniform emissivity seen edge-on. The nuclear component is found to consist of a thermal and a nonthermal source, and the 2.2 micron emission peak is centered on the nonthermal nuclear source, which suggests that it is centered on the stellar nucleus.
Crane Patrick C.
Duric Neb
Seaquist Ernest R.
No associations
LandOfFree
The radio continuum morphology of NGC 4631 at 2.7 and 8.1 GHz 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 radio continuum morphology of NGC 4631 at 2.7 and 8.1 GHz, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The radio continuum morphology of NGC 4631 at 2.7 and 8.1 GHz will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-927522