White, G. J. and Macdonald, G. H.
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Previous studies of time variations in water vapour sources associated with HII regions by Sullivan (1971, 1973) and Gammon (1976) have revealed variability on time-scales of 106-107s. Sullivan monitored nine sources over a period of 14 months and Gammon observed W49 (H2O) for 13 months. In an attempt to gather more complete information on the variability of intertellar water masers we have monitored 18 sources for the 32-month period 1974 September-1977 May.
|Item Type:||Conference Item|
|Copyright Holders:||1980 International Astronomical Union|
|Extra Information:||Interstellar Molecules,
Proceedings of the IAU Symposium No. 87
held 6-10 August 1979 in Mont Tremblant, Quebec, Canada.
Edited by B.H. Andrews.
Dordrecht: D. Reidel Publishing Co., 1980
|Keywords:||HII regions; interstellar masers; spectrum analysis; water masers; water vapor; annual variations; astronomical catalogs; physical properties; radio emission; statistical analysis; stellar evolution|
|Academic Unit/School:||Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM)
|Interdisciplinary Research Centre:||Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)|
|Depositing User:||G. J. White|
|Date Deposited:||11 Jun 2012 12:25|
|Last Modified:||29 Nov 2016 22:46|
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