The large-scale radio continuum structure of the edge-on spiral galaxy NGC 253

Details The large-scale radio continuum structure of the edge-on spiral galaxy NGC 253 The large-scale radio continuum structure of the edge-on spiral galaxy NGC 253

Aug 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...137..138h&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 137, no. 1, Aug. 1984, p. 138-144.

Astronomy and Astrophysics

Astrophysics

39

Continuous Spectra, Radio Galaxies, Spiral Galaxies, Astronomical Maps, Astronomical Spectroscopy, Brightness Distribution, Cosmic Rays, Emission Spectra, Galactic Nuclei, Galactic Structure, Radio Spectra, Spectral Energy Distribution, Starburst Galaxies

Scientific paper

VLA observations of NGC 253 are presented. The main results are: (1) The radio continuum emission consists of three main components, a central source (≡50%), an inner disk component containing a bar (≡30%) and an outer disk component (≡20%). (2) The central source has a radio power P4.9GHz ≅ 1021W Hz-1 and a linear half power size of ≡130×60 pc. The spectral index is -0.43±0.07. (3) The inner disk emission has a half power diameter of ≡5 kpc and has a ridge of radio emission at position angle 75°±5° coinciding with the optical bar. The outer disk component has a total extent of ≡15 kpc. There is some suggestion of the presence of a radio spiral arm. (4) The radio disk (inner + outer disk) has a half power z-thickness of 1.4±0.2 kpc and the 1% level z-thickness is 4.5 kpc. No emission at a level Tb > 0.1K at 1.46 GHz was detected at ≥5 kpc above the plane of the galaxy.

Affiliated with

Also associated with

No associations

Rating

The large-scale radio continuum structure of the edge-on spiral galaxy NGC 253 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 large-scale radio continuum structure of the edge-on spiral galaxy NGC 253, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The large-scale radio continuum structure of the edge-on spiral galaxy NGC 253 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1673517