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Proposal Identication No.: P1770 Date Received: 2003-Feb-03 14:04:19
Technical Page
Proposal Type: Regular
General Category: Pulsars
Observation Category: Galactic
Total Time Requested: 57 Hours
Proposal Title: Relativistic Measurements of Binary Pulsar B1913+16
ABSTRACT:
The binary pulsar B1913+16 continues to be an excellent laboratory for the study of relativistic gravitation.
Analysis of measured pulse arrival times has provided conclusive evidence for orbital decay due to gravitational
radiation emission, in excellent agreement with general relativity. Additional relativistic eects will become
measurable with plausible gains in observing sensitivity and favorable orbital geometry. Observations of the system
are also contributing uniquely to basic pulsar astrophysics. While observers are bound forever to see the same cut
across the emission beams of most pulsars, geodetic precession of the spin axis of B1913+16 is enabling us to map
the emission beam in both dimensions. We propose to continue our long-term timing and polarimetry measurements
with an intensive observing session this summer, using much larger bandwidths than were previously available.
Name Institution E-mail Phone Student
Joseph H Taylor Princeton University joe@puppsr13.princeton.edu 609 258-3020 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
Atmospheric Observation Instruments:
Description of Observer Equipment: Princeton Mark III and Mark IV pulsar backends.
Special Equipment or setup: Four WAPPs
RFI Considerations
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Frequency Ranges Planned
We will consult with the observatory sta to help decide which frequencies within the L-wide band to use
for the four-WAPP system so as to minimize RFI. The result may cause changes in some answers below.
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 1222-1381 MHz..
This proposal requires coordination with GPS L3 at 1381 MHz.
2