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Proposal Identification No.:

P2818

Date Received:

2013-Mar-01 17:50:20

Technical Page
This proposal has not been submitted before. Proposal Type: General Category: Observation Category: Total Time Requested: Minimum Useful Time: Prop osal Title: ABSTRACT: Regular Pulsars Galactic 18 Hours 1.5 hours

Expanding the NANOGrav Pulsar Timing Array

Direct detection of gravitational waves (GW) is a ma jor goal in experimental physics and will open an entirely new astronomical spectrum. Precision pulsar timing stands an excellent chance of being the first method to accomplish this feat. Combining data from many ob jects into a Pulsar Timing Array (PTA) makes GW detection possible. Increasing the number of pulsars in the array improves sensitivity, and over the past few years we have doubled our source list by including newly discovered pulsars. New instrumentation for pulsar timing (PUPPI) now provides an order of magnitude more bandwidth than previously available. In this proposal, we request time to revisit several older pulsar discoveries that with previous instrumentation were either too faint or unreliably detected (due to scintillation) to be useful. When observed with PUPPI we expect several of these sources may now be useful additions to the NANOGrav pro ject.

Name Paul B Demorest

Institution NRAO

E-mail pdemores@nrao.edu

Phone 434-244-6838

Student no

Remote Observing Request

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

Instrument Setup
430 G L-wide S-low

Atmospheric Observation Instruments:

Sp ecial Equipment or setup: PUPPI

RFI Considerations
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Frequency Ranges Planned
420 - 440 1150 - 1800 1700 - 2400

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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