On the Reliability of Planetary Nebulae as Extragalactic Probes

Details On the Reliability of Planetary Nebulae as Extragalactic Probes On the Reliability of Planetary Nebulae as Extragalactic Probes

Nov 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aipc..804..269s&link_type=abstract

PLANETARY NEBULAE AS ASTRONOMICAL TOOLS: International Conference on Planetary Nebulae as Astronomical Tools. AIP Conference Pr

Astronomy and Astrophysics

Astronomy

7

Planetary Nebulae, Stellar Evolution, Planetary Nebulae

Scientific paper

We report on the first 1D radiation-hydrodynamics simulations aimed at exploring the metallicity dependance of the evolution of planetary nebulae. Using scaled mean abundances, based on Galactic disk objects, we found that for lower metallicities the nebulae become more dilute and prone to departures from thermal equilibrium because of the reduced wind power of the central star and the reduced cooling efficiency of the nebular gas. At selected evolutionary phases we `switched off' the hydrodynamic terms and computed equilibrium models for the fixed density structure and radiation field. This enabled us to study how the electron temperature and the emission of important diagnostic lines is influenced by hydrodynamics.

Affiliated with

Also associated with

No associations

Rating

On the Reliability of Planetary Nebulae as Extragalactic Probes 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 On the Reliability of Planetary Nebulae as Extragalactic Probes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the Reliability of Planetary Nebulae as Extragalactic Probes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1834929