Intrabinary shock emission from "black widows" and "redbacks"

Mallory Roberts, M. A. Mclaughlin, P. Gentile, E. Aliu, J. W T Hessels, S. M. Ransom, P. S. Ray

    Research output: Contribution to journalArticle

    Abstract

    Eclipsing millisecond pulsars in close (Pb < 1 day) binary systems provide a different view of pulsar winds and shocks than do isolated pulsars. Since 2009, the numbers of these systems known in the Galactic field has increased enormously. We have been systematically studying many of these newly discovered systems at multiple wavelengths. Typically, the companion is nearly Roche-lobe filling and heated by the pulsar which drives mass loss from the companion. The pulsar wind shocks with this material just above the surface of the companion. We discuss various observational properties of this shock, including radio eclipses, orbitally modulated X-ray emission, and the potential for γ-ray emission. Redbacks, whose companions are likely non-degenerate and significantly more massive, generally have more luminous shocks than black widows which have very low mass companions. This is expected since the more massive redback companions intercept a greater fraction of the pulsar wind. We also compare these systems to accreting millisecond pulsars, which may be progenitors of black widows and in some cases can pass back and forth between redback and accretion phases.

    Original languageEnglish (US)
    Pages (from-to)313-317
    Number of pages5
    JournalAstronomische Nachrichten
    Volume335
    Issue number3
    DOIs
    StatePublished - Mar 1 2014

    Fingerprint

    pulsars
    shock
    accretion
    radio
    wavelength
    eclipses
    lobes
    rays
    wavelengths
    x rays
    loss
    material

    Keywords

    • Gamma rays: observations
    • Pulsars: general
    • Radio continuum: stars
    • Shock waves
    • X-rays: binaries

    ASJC Scopus subject areas

    • Astronomy and Astrophysics
    • Space and Planetary Science

    Cite this

    Roberts, M., Mclaughlin, M. A., Gentile, P., Aliu, E., Hessels, J. W. T., Ransom, S. M., & Ray, P. S. (2014). Intrabinary shock emission from "black widows" and "redbacks". Astronomische Nachrichten, 335(3), 313-317. https://doi.org/10.1002/asna.201312038

    Intrabinary shock emission from "black widows" and "redbacks". / Roberts, Mallory; Mclaughlin, M. A.; Gentile, P.; Aliu, E.; Hessels, J. W T; Ransom, S. M.; Ray, P. S.

    In: Astronomische Nachrichten, Vol. 335, No. 3, 01.03.2014, p. 313-317.

    Research output: Contribution to journalArticle

    Roberts, M, Mclaughlin, MA, Gentile, P, Aliu, E, Hessels, JWT, Ransom, SM & Ray, PS 2014, 'Intrabinary shock emission from "black widows" and "redbacks"', Astronomische Nachrichten, vol. 335, no. 3, pp. 313-317. https://doi.org/10.1002/asna.201312038
    Roberts M, Mclaughlin MA, Gentile P, Aliu E, Hessels JWT, Ransom SM et al. Intrabinary shock emission from "black widows" and "redbacks". Astronomische Nachrichten. 2014 Mar 1;335(3):313-317. https://doi.org/10.1002/asna.201312038
    Roberts, Mallory ; Mclaughlin, M. A. ; Gentile, P. ; Aliu, E. ; Hessels, J. W T ; Ransom, S. M. ; Ray, P. S. / Intrabinary shock emission from "black widows" and "redbacks". In: Astronomische Nachrichten. 2014 ; Vol. 335, No. 3. pp. 313-317.
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