Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...371..111i&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 371, April 10, 1991, p. 111-130. NSERC-supported research.
Astronomy and Astrophysics
Astrophysics
73
Galactic Nuclei, H I Regions, Interstellar Gas, Spiral Galaxies, Absorption Spectra, Emission Spectra, Interstellar Matter, Line Spectra, Red Shift, Very Large Array (Vla)
Scientific paper
Multiarray VLA H I observations of the radio lobe spiral galaxy NGC 3079 and it companions NGC 3073 and MCG9-17-9 are reported. It is found that the density and velocity distributions in this galaxy can be adequately described, to first order, by simple exponential or Gaussian functions and a Brandt curve, respectively. From residual line profiles, an anomalous redshifted emissions feature centered at a radius of roughly 3.5 kpc on the southern major axis is found. A distinct redshifted absorption component several hundred pc from the nucleus is detected from nuclear absorption profiles. The galaxy is also distinguished by a centrally peaked H I distribution.
Irwin Judith A.
Seaquist Ernest R.
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