Line Strength Gradients in Spiral Bulges

Details Line Strength Gradients in Spiral Bulges Line Strength Gradients in Spiral Bulges

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aas...199.0711m&link_type=abstract

American Astronomical Society, 199th AAS Meeting, #07.11; Bulletin of the American Astronomical Society, Vol. 33, p.1315

Astronomy and Astrophysics

Astronomy

Scientific paper

We present metallicity gradients in roughly a dozen spiral bulges obtained with the Double Imaging Spectrograph at the 3.5m Apache Point Observatory telescope. The goal of the project is to gain insight into the formation of central bulges in spiral galaxies. Models for bulge formation include dissipative collapse at the beginning of galaxy formation, merger events over the lifetime of the galaxy, and secular evolution with disk stars being inserted into the bulge through bar instabilities. The collapse model predicts strong metallicity gradients whereas secular evolution predicts that bulges will look like disks with minimal gradients. Mergers might cause any gradients to be washed out. We comment on the implications of our results for the different bulge formation models.

Affiliated with

Also associated with

No associations

Rating

Line Strength Gradients in Spiral Bulges does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Line Strength Gradients in Spiral Bulges, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Line Strength Gradients in Spiral Bulges will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1228624