Hostname: page-component-745bb68f8f-f46jp Total loading time: 0 Render date: 2025-01-27T06:53:39.836Z Has data issue: false hasContentIssue false
  • English
  • Français

Millimeter-wave interferometry of Proto-Planetary Nebulae

Published online by Cambridge University Press:  25 May 2016

A. Dayal ,
J. H. Bieging  and
P. Bergman
A. Dayal
Affiliation:
Steward Observatory, Tucson, USA Caltech, Pasadena, USA
J. H. Bieging
Affiliation:
Steward Observatory, Tucson, USA Caltech, Pasadena, USA
P. Bergman
Affiliation:
Onsala Space Obs., Sweden Onsala Space Obs., Sweden

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We have observed 2 compact PPNe, AFGL 2343 and IRAS 22272+5435, in the CO J=1-0 transition using the Owens Valley interferometer (OVRO), and the NRAO 12-meter telescope. Our observations were made in the low and intermediate resolution configurations of the interferometer and we obtain a synthesized beam (HPBW) of ≃ 4″. We are now modelling both sources using statistical equilibrium/radiative transfer codes. Our objectives are to a) map the distribution and kinematics of the molecular gas at high angular resolution and b) estimate the physical conditions (mass loss rate, temperature, density) in the molecular envelopes, through our models.

Type
V. From AGB to Planetary Nebulae
Information
Symposium - International Astronomical Union , Volume 180: Planetary Nebulae , 1997 , pp. 346
Copyright
Copyright © Kluwer 1997