Gas flow, population structure and starburst activity in the central zone of NGC 4736
The Sb galaxy NGC 4736 has a well observed ring of bright HII regions just outside its bulge, at some 1.3 kpc from the nucleus, with an apparent expansion velocity of about 30 km/s. Dynamical evidence is produced to show that this outflow originated in a starburst in the bulge which occurred some 3 x 10 exp 7 years ago. Corroborative evidence for
Varela, A. M. et al.
Fecha de publicación:
0
1990