Water maser in Southern FIR-bright galaxies: detection and interferometric follow-ups
Abstract
A correlation between the presence of 22 GHz water masers and 100mm flux density was proposed by [1] as a result of a survey on a sample of all northern galaxies (Dec > −30◦) associated with IRAS FIR point sources with 100mm flux densities larger than 50 Jy. The survey provided the relevant maser detection rate of 22%, which is extremely high with respect to other surveys. Therefore, we decided to complete the sample by observing all southern galaxies (with the same FIR flux constraint and Dec < −30◦) with the 70-m Tidbinbilla telescope in a search for water maser emission. We have detected two new water masers in the merging system NGC3256 and in the spiral galaxy NGC3620, respectively, yielding a detection rate consistent with the northern sample. The detections have been followed-up through spectral line interferometric observations with the ATCA.
Additional Information
© 2008 owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence. Published on: 2009 July 13. GS is a student of the International Max Planck Research School (IMPRS) for Radio and Infrared Atronomy. JO is a Jansky Fellow of the National Radio Astronomy Observatory. NRAO is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc. We wish to thank Shinji Horiuchi for performing part of the observations at Tidbinbilla and for useful discussions.Attached Files
Published - IX_EVN_Symposium_109.pdf
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Additional details
- Eprint ID
- 88971
- Resolver ID
- CaltechAUTHORS:20180821-084445888
- National Radio Astronomy Observatory
- Created
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2018-08-21Created from EPrint's datestamp field
- Updated
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2021-11-16Created from EPrint's last_modified field
- Series Name
- Proceedings of Science