Wolf-Rayet stars in the barred spiral galaxy NGC 5430
by Budgieye moderator
This is an area studied by one of the Galaxy Zoo scientists.
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.
http://articles.adsabs.harvard.edu//full/1982PASP...94..765K/0000767.000.html There is a spectrum.