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Proposal Identication No.: P1734 Date Received: 2003-Oct-01 17:10:12
Technical Page
Proposal Type: Regular
General Category: Pulsars
Observation Category: Galactic
Total Time Requested: 60 Hours
Proposal Title: Subpulse uctuation properties of northern pulsars
ABSTRACT:
Recent high-quality single-pulse observations of drifting subpulses have been interpreted, within the framework of
generally accepted aspects of pulsar theories, using new analysis techniques. This has opened up the possibility of
reconstructing maps of circulating patterns underlying the emission from the pulsar polar region and studying the
stability/evolution of such patterns. It is clear that the details of such patterns and their circulation hold valuable
clues about the electrodynamics in the acceleration region, and hence the relevant quantities need to be measured
for a sizable number of pulsars spanning a range of periods, magnetic elds and emission geometries. Subpulse
uctuation properties have been examined for only a limited number of conal-type northern pulsars so far and
there is a need to identify more of examples suitable for detailed study. We propose to observe at L-band a sample
of about 90 (conal-type) northern pulsars for preliminary analysis of their uctuation properties to search for
suitable candidates for future more detailed study.
Name Institution E-mail Phone Student
Avinash A. Deshpande Arecibo Observatory,
NAIC and RRI, Ban-
galore
desh@naic.edu (+1) 787 878
2612
no
Service Observing Request Remot e Observing Request
X None X No
All of the observing run. Maybe
Part of the observing run. Yes
Queue Observing
Instrument Setup
L-wide L-narrow
Atmospheric Observation Instruments:
Special Equipment or setup: none
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RFI Considerations
Frequency Ranges Planned
1280 - 1500
This proposal requires coordination with Punta Salinas radar within the band 1222-1381 MHz..
This proposal requires coordination with GPS L3 at 1381 MHz.
2