Timing of 29 Pulsars Discovered in the PALFA Survey

Research output: Contribution to journalArticle

  • Authors:
  • A.~G. Lyne
  • B.~W. Stappers
  • S. Bogdanov
  • R.~D. Ferdman
  • P.~C.~C. Freire
  • And 36 others
  • External authors:
  • V.~M. Kaspi
  • B. Knispel
  • R. Lynch
  • B. Allen
  • A. Brazier
  • F. Camilo
  • F. Cardoso
  • S. Chatterjee
  • J.~M. Cordes
  • F. Crawford
  • J.~S. Deneva
  • J.~W.~T. Hessels
  • F.~A. Jenet
  • P. Lazarus
  • J. van Leeuwen
  • D.~R. Lorimer
  • E. Madsen
  • J. McKee
  • M.~A. McLaughlin
  • E. Parent
  • C. Patel
  • S.~M. Ransom
  • P. Scholz
  • A. Seymour
  • X. Siemens
  • L.~G. Spitler
  • I.~H. Stairs
  • K. Stovall
  • J. Swiggum
  • R.~S. Wharton
  • W.~W. Zhu
  • C. Aulbert
  • O. Bock
  • H.-B. Eggenstein
  • H. Fehrmann
  • B. Machenschalk

Abstract

We report on the discovery and timing observations of 29 distant long-period pulsars discovered in the ongoing Arecibo PALFA pulsar survey. Following discovery with the Arecibo Telescope, conrmation and timing observations of these pulsars over several years at Jodrell Bank Observatory have yielded high-precision positions and measurements of rotation and radiation properties. We have used multi-frequency data to measure the interstellar scattering properties of some of these pulsars. Most of the pulsars have properties that mirror those of the previously known pulsar population, although four show some notable characteristics. PSRs J1907+0631 and J1925+1720 are young and are associated with supernova remnants or plerionic nebulae: J1907+0631 lies close to the center of SNR G40.5􀀀0.5, while J1925+1720 is coincident with a high-energy
Fermi -ray source. One pulsar, J1932+1500, is in a surprisingly eccentric, 199-day binary orbit with a companion having a minimum mass of 0.33 M. Several of the sources exhibit timing noise, and two, PSRs J0611+1436 and J1907+0631, have both suered large glitches, but with very dierent post-glitch rotation properties. In particular, the rotational period of PSR J0611+1436 will not recover to its pre-glitch value for about 12 years, a far greater recovery timescale than seen following any other large glitches.

Bibliographical metadata

Original languageEnglish
Pages (from-to)137
Number of pages1
JournalThe Astrophysical Journal
Volume834
DOIs
StatePublished - 1 Jan 2017