AAS 207th Meeting, 8-12 January 2006
Session 183 Radio and X-Ray Pulsars
Poster, Thursday, 9:20am-4:00pm, January 12, 2006, Exhibit Hall

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[183.08] Searching for weak, isolated pulsars in the globular cluster Terzan 5

B. Sulman (Oberlin College), S. Ransom (NRAO), D. Stinebring (Oberlin College)

The Terzan 5 star cluster is one of the richest globular clusters in the Milky Way.  It contains 32 known recycled millisecond pulsars, 16 of which are binary systems.  We searched for very weak, isolated pulsars in Terzan 5 using an incoherent "stack-search" method that sums power spectra from several observations.  The stable frequencies of isolated pulsars cause their corresponding peaks in the power spectrum to grow faster than the noise.  We added power spectra from over a year's worth of GBT observations, and have so far uncovered at least one new, weak, isolated millisecond pulsar using this method.  We plan to continue using this method to search GBT data from several star clusters and anticipate discovering several additional millisecond pulsars.  This project was supported by NRAO, the NSF REU program, and Oberlin College.

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