Surrounded by spiders! New black widows and redbacks in the Galactic field

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

Abstract

Over the last few years, the number of known eclipsing radio millisecond pulsar systems in the Galactic field has dramatically increased, with many being associated with Fermi gamma-ray sources. All are in tight binaries (orbital period < 24 hr) with many being classical black widows which have very low mass companions (companion mass Mc ≠0.1 M ⊙) but some are redbacks with low mass (Mc ∼ 0.2-0.4 M ⊙) companions which are probably non-degenerate. These latter are systems where the mass transfer process may have only temporarily halted, and so are transitional systems between low mass X-ray binaries and ordinary binary millisecond pulsars. Here we review the new discoveries and their multi-wavelength properties, and briefly discuss models of shock emission, mass determinations, and evolutionary scenarios.

Original languageEnglish (US)
Title of host publicationNeutron Stars and Pulsars
Subtitle of host publicationChallenges and Opportunities after 80 years
Pages127-132
Number of pages6
EditionS291
DOIs
StatePublished - Aug 1 2012

Publication series

NameProceedings of the International Astronomical Union
NumberS291
Volume8
ISSN (Print)1743-9213
ISSN (Electronic)1743-9221

Fingerprint

spiders
pulsars
mass transfer
shock
orbitals
wavelengths
x rays

Keywords

  • acceleration of particles
  • accretion
  • binaries: close
  • binaries: eclipsing
  • equation of state
  • gamma rays: observations
  • pulsars: general
  • pulsars: individual (PSR J2129-0429)
  • shock waves
  • X-rays: binaries

ASJC Scopus subject areas

  • Astronomy and Astrophysics

Cite this

Roberts, M. (2012). Surrounded by spiders! New black widows and redbacks in the Galactic field. In Neutron Stars and Pulsars: Challenges and Opportunities after 80 years (S291 ed., pp. 127-132). (Proceedings of the International Astronomical Union; Vol. 8, No. S291). https://doi.org/10.1017/S174392131202337X

Surrounded by spiders! New black widows and redbacks in the Galactic field. / Roberts, Mallory.

Neutron Stars and Pulsars: Challenges and Opportunities after 80 years. S291. ed. 2012. p. 127-132 (Proceedings of the International Astronomical Union; Vol. 8, No. S291).

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

Roberts, M 2012, Surrounded by spiders! New black widows and redbacks in the Galactic field. in Neutron Stars and Pulsars: Challenges and Opportunities after 80 years. S291 edn, Proceedings of the International Astronomical Union, no. S291, vol. 8, pp. 127-132. https://doi.org/10.1017/S174392131202337X
Roberts M. Surrounded by spiders! New black widows and redbacks in the Galactic field. In Neutron Stars and Pulsars: Challenges and Opportunities after 80 years. S291 ed. 2012. p. 127-132. (Proceedings of the International Astronomical Union; S291). https://doi.org/10.1017/S174392131202337X
Roberts, Mallory. / Surrounded by spiders! New black widows and redbacks in the Galactic field. Neutron Stars and Pulsars: Challenges and Opportunities after 80 years. S291. ed. 2012. pp. 127-132 (Proceedings of the International Astronomical Union; S291).
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