Type
Article
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.
Language
English
Department(s)
Physics and Astronomy
Journal or Book Title
Monthly Notices of the Royal Astronomical Society
Publication Year
2004
DOI
10.1111/j.1365-2966.2004.07862.x
Publisher
Wiley-Blackwell
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 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
Paid OA Option
Yes
Contributing Organization
Carleton College
Format
application/pdf
Recommended Citation
Champion, D. J., D. R. Lorimer, M. A. McLaughlin, James M. Cordes, Zaven Arzoumanian, Joel M. Weisberg, and Joseph H. Taylor., "PSR J1829+2456: a relativistic binary pulsar". Monthly Notices of the Royal Astronomical Society, vol. 350, no. 4, 2004. Available at: https://doi.org/10.1111/j.1365-2966.2004.07862.x. . [Online]. Accessed via Faculty Work. Physics and Astronomy. Carleton Digital Commons. https://digitalcommons.carleton.edu/phys_faculty/1
The definitive version is available at https://doi.org/10.1111/j.1365-2966.2004.07862.x
