Evolution of the H2O maser emission in IRAS 20126+4104

We present the results of our investigation of the H 2 O maser emission from individual features in IRAS 20126+4104, which is a cold infrared source. The observations were performed at the 22-m radio telescope of the Pushchino Radio Astronomy Observatory. A radial-velocity drift of the features caus...

Full description

Saved in:
Bibliographic Details
Published in:Astronomy letters 2015-11, Vol.41 (11), p.607-612
Main Authors: Lekht, E. E., Pashchenko, M. I., Rudnitskii, G. M.
Format: Article
Language:English
Subjects:
Astronomy
Astrophysics
Astrophysics and Astroparticles
Emissions
Microwaves
Observations and Techniques
Physics
Physics and Astronomy
Star & galaxy formation
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We present the results of our investigation of the H 2 O maser emission from individual features in IRAS 20126+4104, which is a cold infrared source. The observations were performed at the 22-m radio telescope of the Pushchino Radio Astronomy Observatory. A radial-velocity drift of the features caused by their deceleration at the interface between between an accelerated jet and the surrounding molecular environment has been detected. The observed tendency for the H 2 O emission as a whole to drift is associated with the successive excitation of maser features or their clusters by the front of a shock (or magnetohydrodynamic) wave. An estimate of the jet rotation period is provided (∼150 years).
ISSN:1063-7737
1562-6873
DOI:10.1134/S1063773715100035