Circumstellar H2O in M-type AGB stars
Conference contribution, 2008

Surprisingly high amounts of H2O have recently been reported in the circumstellar envelope around the M-type AGB star W Hya. However, substantial uncertainties remain, as the required radiative transfer modelling is difficult due to high optical depths, sub-thermal excitation and the sensitivity to the combined radiation field from the central star and dust grains.

Author

Matthias Maercker

Fredrik Schöier

Chalmers, Department of Radio and Space Science, National Facility for Radio Astronomy

Hans Olofsson

Chalmers, Department of Radio and Space Science, National Facility for Radio Astronomy

in Proceedings of "Organic Matter in Space", Hong Kong, Feb 18-22, 2008, IAU symposium 251, eds. S. Kwok, S. Sandford, Cambridge University Press

163-164

Subject Categories

Astronomy, Astrophysics and Cosmology

ISBN

9780521889827

More information

Created

10/8/2017