Proceedings of the International Astronomical Union

Table of Contents - January 2012 - Volume 8, Symposium S287 (Cosmic Masers - from OH to H0)  

Contributed Papers

Maser emission during post-AGB evolution

J.-F. Desmursa1

a1 Observatorio Astronómico Nacional, Madrid, Spain email: desmurs@oan.es

Abstract

This contribution reviews recent observational results concerning astronomical masers toward post-AGB objects with a special attention to water fountain sources and the prototypical source OH 231.8+4.2. These sources represent a short transition phase in the evolution between circumstellar envelopes around asymptotic giant branch stars and planetary nebulae. The main masing species are considered and key results are summarized.

Keywords

  • Maser;
  • stars: AGB and Post AGB