A millisecond pulsar in a stellar triple system

S. M. Ransom, I. H. Stairs, A. M. Archibald, J. W T Hessels, D. L. Kaplan, M. H. Van Kerkwijk, J. Boyles, A. T. Deller, S. Chatterjee, A. Schechtman-Rook, A. Berndsen, R. S. Lynch, D. R. Lorimer, C. Karako-Argaman, V. M. Kaspi, V. I. Kondratiev, M. A. McLaughlin, J. Van Leeuwen, R. Rosen, Mallory Roberts & 1 others K. Stovall

    Research output: Contribution to journalArticle

    Abstract

    Gravitationally bound three-body systems have been studied for hundreds of years and are common in our Galaxy. They show complex orbital interactions, which can constrain the compositions, masses and interior structures of the bodies and test theories of gravity, if sufficiently precise measurements are available. A triple system containing a radio pulsar could provide such measurements, but the only previously known such system, PSR B1620-26 (refs 7, 8; with a millisecond pulsar, a white dwarf, and a planetary-mass object in an orbit of several decades), shows only weak interactions. Here we report precision timing and multiwavelength observations of PSR J0337+1715, a millisecond pulsar in a hierarchical triple system with two other stars. Strong gravitational interactions are apparent and provide the masses of the pulsar (1.4378(13), where is the solar mass and the parentheses contain the uncertainty in the final decimal places) and the two white dwarf companions (0.19751(15) and 0.4101(3)), as well as the inclinations of the orbits (both about 39.2). The unexpectedly coplanar and nearly circular orbits indicate a complex and exotic evolutionary past that differs from those of known stellar systems. The gravitational field of the outer white dwarf strongly accelerates the inner binary containing the neutron star, and the system will thus provide an ideal laboratory in which to test the strong equivalence principle of general relativity.

    Original languageEnglish (US)
    Pages (from-to)520-524
    Number of pages5
    JournalNature
    Volume505
    Issue number7484
    DOIs
    StatePublished - Jan 7 2014

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    pulsars
    orbits
    planetary mass
    stellar systems
    circular orbits
    gravitational fields
    neutron stars
    inclination
    equivalence
    relativity
    time measurement
    interactions
    gravitation
    galaxies
    stars
    orbitals

    ASJC Scopus subject areas

    • General

    Cite this

    Ransom, S. M., Stairs, I. H., Archibald, A. M., Hessels, J. W. T., Kaplan, D. L., Van Kerkwijk, M. H., ... Stovall, K. (2014). A millisecond pulsar in a stellar triple system. Nature, 505(7484), 520-524. https://doi.org/10.1038/nature12917

    A millisecond pulsar in a stellar triple system. / Ransom, S. M.; Stairs, I. H.; Archibald, A. M.; Hessels, J. W T; Kaplan, D. L.; Van Kerkwijk, M. H.; Boyles, J.; Deller, A. T.; Chatterjee, S.; Schechtman-Rook, A.; Berndsen, A.; Lynch, R. S.; Lorimer, D. R.; Karako-Argaman, C.; Kaspi, V. M.; Kondratiev, V. I.; McLaughlin, M. A.; Van Leeuwen, J.; Rosen, R.; Roberts, Mallory; Stovall, K.

    In: Nature, Vol. 505, No. 7484, 07.01.2014, p. 520-524.

    Research output: Contribution to journalArticle

    Ransom, SM, Stairs, IH, Archibald, AM, Hessels, JWT, Kaplan, DL, Van Kerkwijk, MH, Boyles, J, Deller, AT, Chatterjee, S, Schechtman-Rook, A, Berndsen, A, Lynch, RS, Lorimer, DR, Karako-Argaman, C, Kaspi, VM, Kondratiev, VI, McLaughlin, MA, Van Leeuwen, J, Rosen, R, Roberts, M & Stovall, K 2014, 'A millisecond pulsar in a stellar triple system', Nature, vol. 505, no. 7484, pp. 520-524. https://doi.org/10.1038/nature12917
    Ransom SM, Stairs IH, Archibald AM, Hessels JWT, Kaplan DL, Van Kerkwijk MH et al. A millisecond pulsar in a stellar triple system. Nature. 2014 Jan 7;505(7484):520-524. https://doi.org/10.1038/nature12917
    Ransom, S. M. ; Stairs, I. H. ; Archibald, A. M. ; Hessels, J. W T ; Kaplan, D. L. ; Van Kerkwijk, M. H. ; Boyles, J. ; Deller, A. T. ; Chatterjee, S. ; Schechtman-Rook, A. ; Berndsen, A. ; Lynch, R. S. ; Lorimer, D. R. ; Karako-Argaman, C. ; Kaspi, V. M. ; Kondratiev, V. I. ; McLaughlin, M. A. ; Van Leeuwen, J. ; Rosen, R. ; Roberts, Mallory ; Stovall, K. / A millisecond pulsar in a stellar triple system. In: Nature. 2014 ; Vol. 505, No. 7484. pp. 520-524.
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    AU - Van Kerkwijk, M. H.

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    AU - Deller, A. T.

    AU - Chatterjee, S.

    AU - Schechtman-Rook, A.

    AU - Berndsen, A.

    AU - Lynch, R. S.

    AU - Lorimer, D. R.

    AU - Karako-Argaman, C.

    AU - Kaspi, V. M.

    AU - Kondratiev, V. I.

    AU - McLaughlin, M. A.

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