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Proposal Identification No.:

P2824

Date Received:

2013-Mar-03 22:34:24

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 30 Hours 40 min

Scintillation Monitoring and TOA Correction of the Millisecond Pulsar J2317+1439

The NANOGrav collaboration is using long-term, high precision timing of millisecond pulsars to detect and study long wavelength gravitational waves. Timing precision at the 100 ns level and below is needed to achieve this goal. Arecibo observations of a slow period pulsar (Hemberger and Stinebring 2008) demonstrated that scattering-induced time variations from 0.2 - 2 microseconds can occur along the line of sight, even at L-band frequencies toward relatively nearby pulsars. We propose to study the millisecond pulsar, J2317+1439, which is bright at 327 MHz and has a scattering delay around 1 microsecond there. In addition to the analyses employed by Hemberger and Stinebring, we will use recently developed cyclic spectroscopy techniques (Demorest 2011) to obtain the phase of the interstellar transfer function. This will allow us to construct a time delay correction and apply it to the arrival times obtained, thereby testing the efficacy of our correction procedure.

Name Daniel R Stinebring

Institution Oberlin College

E-mail dan.stinebring@oberlin.edu

Phone 440-775-8331

Student no

Remote Observing Request

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

Instrument Setup
430 G 327

Atmospheric Observation Instruments:

Sp ecial Equipment or setup:

none

RFI Considerations
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Frequency Ranges Planned
320 - 350 MHz 410 - 440 MHz

2