Carleton Author

Weisberg, Joel M.

Department

Physics and Astronomy

Journal Title

Monthly Notices of the Royal Astronomical Society

Publication Date

2004

Volume

350

Issue

4

First Page

L61

Publisher

Wiley-Blackwell

Last Page

L65

File Name

056_Weisberg-Joel_ARelativisticBinaryPulsar.pdf

Keywords

pulsars, individual J1829+2456

Abstract

We report the discovery of a new binary pulsar, PSR J1829+2456, found during a mid-latitude drift-scan survey with the Arecibo telescope. Our initial timing observations show the 41-ms pulsar to be in a 28-hr, slightly eccentric, binary orbit. The advance of periastron ˙ω = 0 .28 ± 0 .01 deg yr − 1 is derived from our timing observations spanning 200 days. Assuming that the advance of periastron is purely relativistic and a reasonable range of neutron star masses for PSR J1829+2456 we constrain the companion mass to be between 1.22 M ⊙ and 1.38 M ⊙, making it likely to be another neutron star. We also place a firm upper limit on the pulsar mass of 1.38 M ⊙. The expected coalescence time due to gravitational-wave emission is long ( ∼ 60 Gyr) and this system will not significantly impact upon calculations of merger rates that are relevant to upcoming instruments such as LIGO.

Rights Management

Carleton College does not own the copyright to this work and the work is available through the Carleton College Library following the original publisher's policies regarding self-archiving. For more information on the copyright status of this work, refer to the current copyright holder.

RoMEO Color

Yellow

Preprint Archiving

Yes (with publisher permission, 0-24 month embaro depending on journal)

Postprint Archiving

No

Contributing Organization

Carleton College

Type

Article

Format

application/pdf

Language

English

Included in

Physics Commons

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