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Proposal Identification No.:

P2441

Date Received:

2008-Oct-01 15:32:00

Technical Page
Proposal Type: General Category: Observation Category: Total Time Requested: Minimum Useful Time: Prop osal Title: ABSTRACT: Regular Pulsars Galactic 26 Hours 30 minutes

Arecibo Timing Observations of two Gamma-Ray Pulsars

We propose to time two energetic, young radio pulsars. One of them (J2021+3651) was recently confirmed to be one of the brightest known -ray pulsars, the other (J1930+1852) is a young and energetic, but radio-faint pulsar that can only be efficiently timed with Arecibo that might still prove to be a -ray pulsar. Our main goal is to monitor the rotational state of these two radio pulsars, allowing accurate folding of their -ray photons. A secondary goal is to constrain the geometry of the pulsars from polarimetry. Both types of information will be important to verify the multiple theories of -ray emission.

Name Paulo C Freire

Institution NAIC / West Virginia University

E-mail pfreire@naic.edu

Phone 1 304 293 3422, Ext. 1462

Student no

Remote Observing Request

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

Instrument Setup
L-wide Atmospheric Observation Instruments:

Sp ecial Equipment or setup:

none

RFI Considerations Frequency Ranges Planned
1


1370-1570 This proposal requires coordination with GPS L3 at 1381 MHz.

2