The Galactic Bulge: the stellar and planetary nebulae populations

Details The Galactic Bulge: the stellar and planetary nebulae populations The Galactic Bulge: the stellar and planetary nebulae populations

Nov 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000ign..confe..13c&link_type=abstract

Ionized Gaseous Nebulae. Mexico City November 21- 24, 2000, meeting abstract

Physics

Scientific paper

How the Galactic Bulge formed, what was the duration of this episode, are qu ite controversary subjects. It is even unclear wether stars are still forming there. These questions are generaly adressed with stars, but planetary nebulae are very apropriate tools to trace the Bulge history as well, due to the great variety of their progenitor lifetimes. In particular, because diferent elements are detectable in planetary nebulae and in stars, a combined analysis of the abundances patterns detected in stars and in planetary nebulae offers new insight in this problem. In long lived stars, most elements have their abundances unmodified and keep the fingerprints of the ISM when it was born. Analysing element abundances both in planetary nebulae and in stars allow thus to have a very good idea of the chemical enrichment of the ISM. We will see how we can understand these patterns in terms of supernovae of type II and type Ia explosions. Because the lifetimes of the progenitors of type II and type Ia supernovae are quite different, they offer very good chronometers for the Bulge evolution. As well, we will see how the abundances of elements synthetised in planetary nebulae progenitors can be unterstood in terms of recent star formation.

Affiliated with

Also associated with

No associations

Rating

The Galactic Bulge: the stellar and planetary nebulae populations 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 The Galactic Bulge: the stellar and planetary nebulae populations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Galactic Bulge: the stellar and planetary nebulae populations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1613003