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Variable Water Maser Emission from Circumstellar Disks
1998We observed the 22 GHz water maser emission in VX UMa (M8e, M=388 d ) and V778 Cyg (C5,5J, SRb=300 d ) from 1987-1992. The spectra of both stars show three distinct components. All three components vary periodically in intensity.
Irene R. Little-Marenin +1 more
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Modelling a Circumstellar Disc Traced by Methanol Masers.
2008We present the accurate modelling of one methanol maser feature in NGC7538IRS1. The aim of this work is to test whether this particular maser feature traces a disc or an outflow in the immediate surroundings of a massive protostar. From our data it is clear that we are in the presence of probably the most smooth and regular maser emission discovered ...
Pestalozzi, M. +6 more
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The chronological sequence of circumstellar masers - Identifying proto-planetary nebulae
Astrophysical Journal, 1989B M Lewis
exaly
The protostellar mass limit for 6.7 GHz methanol masers
Astronomy and Astrophysics, 2003Simon Ellingsen
exaly
VLBI astrometry of circumstellar OH masers: Proper motions and parallaxes of four AGB stars
Astronomy and Astrophysics, 2003exaly