SIMBAD references

2007MNRAS.378L..20W - Mon. Not. R. Astron. Soc., 378, L20-L23 (2007/June-2)

A search for 22-GHz H2 O masers in supernova remnants.


Abstract (from CDS):

We have examined 18 known supernova remnants for evidence of the 22.235-GHz water maser spectral line, using the 20-m telescope at the Onsala observatory in Sweden. No evidence of such emission was discovered above the background noise in any of the observations. We have developed a radiative transfer water maser model for the shocked regions of supernova remnants in order to determine why this emission was not detected. The model indicates an insignificant amount of 22.235-GHz gain; the gain lengths are far too short to allow the formation of detectable water masers from these objects. We predict that only in unusual environments can 22-GHz water masers be detected around supernova remnants.

Abstract Copyright: 2007 The Authors. Journal compilation © 2007 RAS

Journal keyword(s): MHD - masers - radiative transfer - shock waves - supernova remnants - radio lines: ISM

Simbad objects: 20

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