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Proposal Identification No.:

P2625

Date Received:

2011-Feb-04 15:00:31

Technical Page
Proposal Type: General Category: Observation Category: Total Time Requested: Minimum Useful Time: Prop osal Title: Regular Pulsars Galactic 125 Hours 1.25 hours

PSR J1713+0747 with PUPPI: aiming for the best timing even and a new test of general relativity
ABSTRACT:
We request time for precise timing of PSR J1713+0747 with the new broadband coherent dedispersion machine, PUPPI. This should result in the most precise pulsar timing ever achieved. We plan a campaign of dense observations that will greatly improve the precision of the orbital and astrometric parameters and enhance the sensitivity of Arecibo's timing array to gravitational waves. The improved measurement of the orbital parameters will provide a precise mass value for the pulsar and its companion and greatly improve the precision of a new test of general relativity. The requirements for this (high timing precision and continued timing) are the same as for the detection of gravitational waves.

Name Paulo C Freire

Institution MPIfR

E-mail pfreire@mpifr-bonn.mpg.de

Phone +49 228525496

Student no

Remote Observing Request

Observer will travel to AO X Remote Observing In Absentia (instructions to operator)

Instrument Setup
L-wide S-low

Atmospheric Observation Instruments:

Sp ecial Equipment or setup: The pro ject will include test observations using the new bac-end GUPPI. This should be able to operate in parallel with the present back-ends (ASP and the WAPPs)

RFI Considerations
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Frequency Ranges Planned
1100-1700 1800-2600 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.

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