Sign on

SAO/NASA ADS Astronomy Abstract Service


· Find Similar Abstracts (with default settings below)
· Full Refereed Journal Article (PDF/Postscript)
· Full Refereed Scanned Article (GIF)
· On-line Data
· Table of Contents
· References in the article
· Citations to the Article (346) (Citation History)
· Refereed Citations to the Article
· SIMBAD Objects (2)
· NED Objects (2)
· Associated Articles
· Also-Read Articles (Reads History)
·
· Translate This Page
Title:
Post-asymptotic giant branch evolution of low- to intermediate-mass stars
Authors:
Vassiliadis, E.; Wood, P. R.
Affiliation:
AA(The Australian National Univ., Private Bag, Australia), AB(The Australian National Univ., Private Bag, Australia)
Publication:
The Astrophysical Journal Supplement Series, vol. 92, no. 1, p. 125-144 (ApJS Homepage)
Publication Date:
05/1994
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
Astronomical Models, Asymptotic Giant Branch Stars, Magellanic Clouds, Main Sequence Stars, Mass Flow Rate, Planetary Nebulae, Stellar Evolution, Stellar Luminosity, White Dwarf Stars, Abundance, Computer Programs, Helium, Hydrogen, Metallicity, Numerical Analysis, Star Trackers
DOI:
10.1086/191962
Bibliographic Code:
1994ApJS...92..125V

Abstract

In this paper, we present the results for the post-Asymptotic Giant Branch (AGB) phases of stellar evolutionary sequences, complete from the main-sequence phase, through the AGB phase, and on into the planetary nebula and white dwarf regimes. Mass loss has been included using an empirical formalism derived from observed mass-loss rates of planetary nebula nuclei available in the literature and from radiation-pressure-driven stellar wind theory. Models are calculated for initial masses 0.89, 0.95, 1.0, 1.5, 2.0, 2.5, 3.5, and 5.0 solar mass, and metallicities 0.016, 0.008, 0.004, and 0.001. These abundance and mass values were chosen to allow comparison with Galactic, and Magellanic Cloud planetary nebulae and their nuclei. The post-AGB evolutionary sequences fall into two distinct groups depending on when the planetary nebula nuclei leave the AGB: one group where helium-shell burning is dominant, and the other group where hydrogen-shell burning is dominant. Of the 27 computed sequences: 17 are hydrogen-burners, and 10 are helium-burners. In only five cases was any effort made to control the phase of departure from the AGB. Lower mass models are more likely to leave the AGB burning helium, as the preceding AGB evolution has a mass-loss rate which is greatest immediately prior to a helium-shell flash. The calculations are compared with the large observational database that has developed over recent years for the Large Magellanic Cloud. These calculations will be useful for determining the planetary nebula luminosity function, and for the study of the ultraviolet excess observed in elliptical galaxies.

Associated Articles

Source Paper     Catalog Description    


Printing Options

Print whole paper
Print Page(s) through

Return 600 dpi PDF to Acrobat/Browser. Different resolutions (200 or 600 dpi), formats (Postscript, PDF, etc), page sizes (US Letter, European A4, etc), and compression (gzip,compress,none) can be set through the Printing Preferences



More Article Retrieval Options

HELP for Article Retrieval


Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)

  New!

Find Similar Abstracts:

Use: Authors
Title
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints