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B. Kent (NRAO/West Virginia Univ.), J. Braatz (NRAO), J. Darling (Carnegie Observatories)
The Green Bank Telescope has been used to search for OH Megamasers (OHMs) in ultra-luminous infrared galaxies. This survey, begun in June 2002, complements extensive searches done at the Arecibo Observatory (Darling & Giovanelli 2002) and elsewhere which in total have produced a catalog of approximately 100 known OHMs. Using similar selection methods as Darling and Giovanelli, we have observed 47 sources and detected 10 new OHMs. Intensities of the new sources detected in our survey range from 4 to over 70 mJy. The survey is an ongoing effort.
Candidate sources were taken from the Point Source Catalog Redshift survey (Saunders et al. 2000). We selected sources at the high end of the 60 micron power distribution, and we eliminated those in the declination range covered by Arecibo (0 deg < declination < 37 deg). We also restricted the redshift range of candidates (z < 0.25) so that the OH lines fall within the L-band frequency range. Spectra of both detected and undetected galaxies and other preliminary results of this survey are available online at http://www.gb.nrao.edu/~bkent/ohmaser.html.
This project was supported by the National Science Foundation Research Experiences for Undergraduates Program.
If you would like more information about this abstract, please follow the link to http://www.gb.nrao.edu/~bkent/ohmaser.html. This link was provided by the author. When you follow it, you will leave the Web site for this meeting; to return, you should use the Back comand on your browser.
The author(s) of this abstract have provided an email address for comments about the abstract: brkastro@yahoo.com
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Bulletin of the American Astronomical Society, 34, #4
© 2002. The American Astronomical Soceity.