PSR J1744-3922: Hint of a new binary pulsar class

R. P. Breton, Mallory Roberts, S. M. Ransom, V. M. Kaspi, M. Durant, P. Bergeron, A. J. Faulkner

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Standard binary evolution models of pulsars in very circular orbits can explain systems with lighter companions and weaker magnetic fields: they are descended from long-lived Low Mass X-ray Binaries with Roche-lobe overflow. By contrast, those having more massive companions and larger magnetic fields are descendants of Intermediate Mass systems, that experienced a common envelope phase. PSR J1744-3922 is a Galactic field binary pulsar exhibiting an unusual combination of characteristics compared to other binary pulsars with low-mass members in circular orbits: it has a relatively long spin period (172 ms), a relatively high magnetic field (1.7×1010G), a short orbital period (4.6 h) and a light companion (Mmin=0.08M). These properties are not self-consistently explained by standard evolution models and so suggest that PSR J1744-3922 has a peculiar evolutionary history. We identify some other previously catalogued Galactic field binary pulsars with similar properties and propose they are potential members of a new class of binary pulsars. Such pulsars could possibly be formed by the recycling of a pulsar originally having a magnetar-strength magnetic field, accretion-induced collapse of a massive white dwarf or a special case of common envelope accretion from a low-mass star.

Original languageEnglish (US)
Title of host publication40 Years Of Pulsars
Subtitle of host publicationMillisecond Pulsars, Magnetars and More
Pages479-481
Number of pages3
Volume983
DOIs
StatePublished - Mar 20 2008
Event40 Years Of Pulsars: Millisecond Pulsars, Magnetars and More - Montreal, QC, Canada
Duration: Aug 12 2007Aug 17 2007

Other

Other40 Years Of Pulsars: Millisecond Pulsars, Magnetars and More
CountryCanada
CityMontreal, QC
Period8/12/078/17/07

Fingerprint

pulsars
circular orbits
magnetic fields
envelopes
magnetars
recycling
lobes
histories
stars
orbitals
x rays

Keywords

  • Binary evolution
  • Binary pulsar
  • PSR J1744-3922

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Breton, R. P., Roberts, M., Ransom, S. M., Kaspi, V. M., Durant, M., Bergeron, P., & Faulkner, A. J. (2008). PSR J1744-3922: Hint of a new binary pulsar class. In 40 Years Of Pulsars: Millisecond Pulsars, Magnetars and More (Vol. 983, pp. 479-481) https://doi.org/10.1063/1.2900278

PSR J1744-3922 : Hint of a new binary pulsar class. / Breton, R. P.; Roberts, Mallory; Ransom, S. M.; Kaspi, V. M.; Durant, M.; Bergeron, P.; Faulkner, A. J.

40 Years Of Pulsars: Millisecond Pulsars, Magnetars and More. Vol. 983 2008. p. 479-481.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Breton, RP, Roberts, M, Ransom, SM, Kaspi, VM, Durant, M, Bergeron, P & Faulkner, AJ 2008, PSR J1744-3922: Hint of a new binary pulsar class. in 40 Years Of Pulsars: Millisecond Pulsars, Magnetars and More. vol. 983, pp. 479-481, 40 Years Of Pulsars: Millisecond Pulsars, Magnetars and More, Montreal, QC, Canada, 8/12/07. https://doi.org/10.1063/1.2900278
Breton RP, Roberts M, Ransom SM, Kaspi VM, Durant M, Bergeron P et al. PSR J1744-3922: Hint of a new binary pulsar class. In 40 Years Of Pulsars: Millisecond Pulsars, Magnetars and More. Vol. 983. 2008. p. 479-481 https://doi.org/10.1063/1.2900278
Breton, R. P. ; Roberts, Mallory ; Ransom, S. M. ; Kaspi, V. M. ; Durant, M. ; Bergeron, P. ; Faulkner, A. J. / PSR J1744-3922 : Hint of a new binary pulsar class. 40 Years Of Pulsars: Millisecond Pulsars, Magnetars and More. Vol. 983 2008. pp. 479-481
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