Wolf-Rayet stars and an extraordinary star-forming region in the barred spiral galaxy NGC 5430 deg

Details Wolf-Rayet stars and an extraordinary star-forming region in the barred spiral galaxy NGC 5430 deg Wolf-Rayet stars and an extraordinary star-forming region in the barred spiral galaxy NGC 5430 deg

Oct 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982pasp...94..765k&link_type=abstract

Astronomical Society of the Pacific, Publications, vol. 94, Oct.-Nov. 1982, p. 765-768. NSF-supported research.

Astronomy and Astrophysics

Astronomy

19

Barred Galaxies, Emission Spectra, Hydrogen Clouds, Stellar Evolution, Wolf-Rayet Stars, Abundance, Dwarf Galaxies, H Lines

Scientific paper

A strong emission knot 20 arcsec southeast of the nucleus of NGC 5430 shows spectral features attributable to Wolf-Rayet stars. If they are like those seen nearby, the knot contains 30,000 Wolf-Rayet stars, as well as a still larger number of O stars. Abundances of heavy elements in the ionized gas around the stars may be lower than expected for such a galaxy. A scenario is proposed in which this object results from the collision of a dwarf irregular galaxy with the disk and bar of NGC 5430 and ensuring star formation.

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