A Shock-excited OH Maser in a Post-asymptotic Giant Branch Envelope?

Sevenster, Maartje N; Chapman, J M

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A Shock-excited OH Maser in a Post-asymptotic Giant Branch Envelope?

Date

2001

Authors

Sevenster, Maartje N

Chapman, J M

Publisher

IOP Publishing

Abstract

We have observed a sample of OH 1612 MHz masing objects in all four OH ground-state transitions with the Australia Telescope Compact Array. One likely post-asymptotic giant branch (AGB) object is found to emit in the 1612, 1665, and 1720 MHz transitions.