Statistics
Scientific paper
Jan 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21520902r&link_type=abstract
American Astronomical Society, AAS Meeting #215, #209.02; Bulletin of the American Astronomical Society, Vol. 42, p.417
Statistics
Scientific paper
Blind periodicity searches with the Fermi LAT have been highly successful at discovering new gamma-ray pulsars, with at least 16 discoveries reported so far (Abdo et al. 2009). These gamma-ray selected pulsars are a very important subset of the gamma-ray pulsars detected by the LAT, since they are potentially radio-quiet pulsars like Geminga and are subject to very different selection effects than the known population of radio pulsars. We describe the gamma-ray pulse timing measurements of these pulsars, from which positions can be measured at the few arcsecond level. These positions, far more precise than positions derived from LAT photon direction measurements, are critical for multi-wavelength follow up. We have made deep radio observations of the new gamma-ray selected pulsars to search for radio pulsations. When successful, radio observations can provide measurements of the distance to the pulsar and the emission geometry. Strong upper limits contribute to population statistics that constrain the emission models for the sources. In this talk, I describe the results of the pulse timing measurements and the current status of the radio pulsation searches.
Fermi LAT Collaboration
Fermi Pulsar Search Consortium
Ray Paul Shelton
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