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Proposal Identication No.: A1341 Date Received: 1999-Sep-30 15:24:19
Technical Page
Proposal Type: Regular
General Category: Astronomy
Sub-Category: Spectroscopy
Observation Category: Extragalactic
Total Time Requested: 200 Hours
Proposal Title: A Search for OH Megamasers in the PSCz Catalog at 0:1 < z < 0:45
ABSTRACT:
We propose to conduct a targeted search for OH megamasers (OHMs) in the redshift range 0:1  z  0:45. 296
candidates have been selected from the ux-limited IRAS Point Source Catalog redshift survey (PSCz) of
Saunders et al (1999). We request an allotment of 200 hours in 2 to 3 installments to use the L-wide Gregorian
receiver to search for the redshifted 1667 MHz line emission of OHMs. We expect to discover roughly 50 OHMs in
this survey, based on a preliminary success rate of 1 in 6. This would double the number of known OHMs, and
increase those at z > 0:1 by a factor of 6. This survey will (i) provide a ux-limited measure of the OH luminosity
function which can be calibrated to the low-redshift galaxy merger rate, and (ii) provide much-enhanced sample of
OH megamasers for the study of their environments, engines, lifetimes, and structure.
Name Institution E-mail Phone Student
Jeremy K Darling Cornell University darling@astrosun.tn.cornell.edu 607 255 6472 G
Instrument Setup
L-wide
Atmospheric Optical Instruments:
Special Equipment or setup: none
RFI Considerations
Frequency Ranges Planned
1150-1515
This proposal requires coordination with Punta Salinas radar within the band 1222-1381 MHz..
This proposal requires coordination with GPS L3 at 1381 MHz.
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