ISSN:
1572-946X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract Evidence for circumnuclear starbursts in spiral galaxies can take the form of a blue excess near the nucleus, but more frequently (because of dust extinction)Hi or radio continuum emission. Such bursts are quite common, even in objects with no interacting companions. One consequence of a burst is to sweep gas outwards from the inner zone, so further bursts (and perhaps the initial one) need to be re-supplied with gas. This can be effectedvia a non-axisymmetric gravitational potential, not necessarily a bar, in the nuclear bulge. Searching for these non-axisymmetric features, we have performed two-dimensional photometry on CCD maps inB, V, R, I, andZ bands, for a set of galaxies which have undergone starburst activity, and we present here a set of results from that photometric programme.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00652684
