Starburst wind from the nucleus of NGC 7714

Details Starburst wind from the nucleus of NGC 7714 Starburst wind from the nucleus of NGC 7714

May 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988aj.....95.1378t&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 95, May 1988, p. 1378-1388, 1579.

Astronomy and Astrophysics

Astronomy

39

Emission Spectra, Galactic Nuclei, Infrared Astronomy Satellite, Infrared Spectroscopy, Starburst Galaxies, Stellar Winds, Far Infrared Radiation, H Alpha Line, Ionized Gases, Molecular Gases

Scientific paper

High-resolution optical spectroscopic observations and infrared spectroscopy have been made of the starburst-nucleus galaxy NGC 7714. From the detailed investigation of the velocity field of ionized gas, the authors find the noncircular motion of the nuclear emitting region. The isovelocity map, derived from the Hα emission, clearly shows that slowly rotating emission-line regions lie along the perturbed disk (or the bar structure). This can be interpreted by an outward flow from the starburst nucleus with the conservation of angular momentum. The isovelocity map of the [N II] gas strongly suggests the presence of bipolar wind nearly perpendicular to the above slowly rotating clouds. Combining with IRAS observations and other information, the authors discuss the circumnuclear gaseous contents.

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