Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...326..574d&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 326, March 15, 1988, p. 574-587.
Astronomy and Astrophysics
Astronomy
91
Cosmic Gases, Galactic Radio Waves, Galactic Structure, Radio Astronomy, Spiral Galaxies, Astronomical Models, Bipolarity, Galactic Nuclei, Gas Flow, Radio Jets (Astronomy), Radio Spectra, Synchrotron Radiation
Scientific paper
A high-resolution, radio continuum study of the spiral galaxy NGC 3079 is presented which reveals the presence of a figure eight morphology along the minor axis, centered on the nucleus. The nucleus itself dominates the emission from the galaxy. It has an inverted spectrum and is a possible VLBI source. The morphology is successfully modeled as the interaction between a nuclear wind and interstellar gas in the disk and halo. In this model, the wind plows up interstellar material as it propagates away from the nucleus. The disk focuses the wind along the minor axis, thereby creating the observed features. The restricted volume of space where the wind originates and the high energies associated with the wind point to a compact object such as a black hole or an unusually compact and massive star cluster as the source of the wind.
Duric Nebojsa
Seaquist Ernest R.
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