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P1425 2000-Jun-01 23:18:47
Technical Page
Proposal Type: Regular
General Category: Pulsars
Observation Category:
Total Time Requested: 48 Hours
Proposal Title: Timing of Three Recently Discovered Pulsars
ABSTRACT:
We request monthly timing observations of three pulsars recently discovered in Arecibo searches. The rst two of
these pulsars, J1740+1000 and J1849+2423, were discovered in AO upgrade driftscan searches, while the third,
J1907+0918, was discovered in a search for radio pulsations from SGR 1900+14. PSR J1740+1000 is a young,
high-velocity pulsar. Using Arecibo timing and eventual VLBA, we aim to calculate both an accurate velocity and
distance to this pulsar, placing important constraints on the high-velocity tail of the pulsar velocity distribution.
This is important for models of core collapse processes in supernovae and for a complete census of pulsar
population. PSR ~ J1907+0918 is a very young pulsar with a possible associated supernova remnant. Timing
observations will allow us to calculate a proper motion and determine whether this pulsar, and not SGR 1900+14,
is associated with the remnant. If so, this has important implications for evolutionary scenarios of SGRs.
Name Institution E-mail Phone Student
Maura A McLaughlin Cornell University mclaughl@spacenet.tn.cornell.edu 607-255-6438 G
I NA want to do remote observing.
Instrument Setup
L-wide
Atmospheric Optical Instruments:
Special Equipment or setup: none
RFI Considerations
Frequency Ranges Planned
1