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Discrete survey of 5-cm OH emission from planetary and proto-planetary nebulae

Published online by Cambridge University Press:  01 March 2007

J.-F. Desmurs ,
A. Baudry ,
P. Sivagnanam ,
C. Henkel  and
A. M. S. Richards
J.-F. Desmurs
Affiliation:
Observatorio Astronómico Nacional, Madrid, Spain email: desmurs@oan.es
A. Baudry
Affiliation:
LAB - Observatoire Aquitain des Sciences de l'Univers, Floirac, France
P. Sivagnanam
Affiliation:
Observatoire de Paris, France
C. Henkel
Affiliation:
MPIfR, Bonn, Germany
A. M. S. Richards
Affiliation:
Jodrell Bank Observatory, UK
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Abstract

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We have undertaken a comprehensive search for the first excited state of OH emission (J=5/2, 2Π3/2) in Planetary and Proto- Planetary Nebulae. With the Effelsberg telescope, we confirm the detection of Vy 2–2 and we present one new detection in the pPN K3−35. This detection has been confirmed by subsequent observations made at 6035 MHz with the MERLIN interferometer. This is the first detection of 6 GHz OH maser emission from a post-AGB star.

Keywords

Maserstars: AGB and post-AGBradio lines: stars
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 3 , Symposium S242: Astrophysical Masers and their Environments , March 2007 , pp. 344 - 345
Copyright
Copyright © International Astronomical Union 2008

References

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