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Proposal Identification No.: P2110 Date Received: 2005­May­31 14:27:25
Technical Page
Proposal Type: Regular
General Category: Pulsars
Observation Category:
Total Time Requested: 60 Hours
Proposal Title: Polarimetric Pulse­Sequence Observations of Bright Unstudied Arecibo Pulsars
ABSTRACT:
New polarimetric pulse­sequence observations are proposed on a group of heretofore unstudied Arecibo pulsars. Of
the about 330 ''normal'' pulsars in the Arecibo sky, some 190 have never been studied polarimetrically. To our
great surprise, a significant number of these stars are quite bright, well strong enough to support detailed
pulse­sequence analyses. In previous work under the P1639 and P1734 projects, we observed some 100 pulsars and
identified a number of uniquely interesting individual objects as well as finding new phen­omena and patterns of
emission behavior. We have also determined more than 50 new rotation measures. Our estimates indicate that
there are some 30--50 unstudied stars which can be observed with a single­pulse S/N more than 10 (and typically
20--30), and experience has shown that there are probably at least an equal number which so far lack reliable flux
density estimates. Some of these stars were discovered in the Parkes Multibeam Survey, but some half have been
known from earlier surveys. Studies of such second­tier stars have already extended our conceptions of pulsar
emission behavior and altered our understanding of what is usual and typical. We believe that it is fairly urgent
that this long overdue work be carried out before similar pressures develop for the many pulsars expected to be
discovered by ALFA.
Name Institution E­mail Phone Student
Joanna M Rankin University of Ver­
mont
Joanna.Rankin@uvm.edu (802) 656­0051 no
Service Observing Request Remot e Observing Request
X None No
All of the observing run. X Maybe
Part of the observing run. Yes
Queue Observing
Instrument Setup
L­wide 327
Atmospheric Observation Instruments:
1

Special Equipment or setup: n/a
RFI Considerations
Frequency Ranges Planned
1120 -- 1680 MHz
327 +/­ 13 MHz
This proposal requires Iridium RFI protection at 1612 MHz between 10pm and 6am EST.
This proposal requires coordination with Punta Salinas radar within the band 1222­1381 MHz..
This proposal requires coordination with GPS L3 at 1381 MHz.
2