Minor Merger Origin for the Circumnuclear Starburst in NGC 7742
We present an emission-line diagnostic analysis of integral-field spectroscopic observations that cover the central kiloparsec of NGC 7742. This Sa galaxy hosts a spectacular nuclear starburst ring and nuclear regions characterized by low-ionization emission. The gas in the ring rotates in the opposite sense to the stars in the galaxy, suggesting a
Mazzuca, L. M. et al.
Fecha de publicación:
10
2006