The double pulsar: evolutionary constraints from the system geometry

Rene Breton, R D {Ferdman}, I H {Stairs}, M {Kramer}, R N {Manchester}, A G {Lyne}, R P {Breton}, M A {McLaughlin}, A {Possenti}, M {Burgay}, C {Bassa} (Editor), Z {Wang} (Editor), A {Cumming} (Editor), V M {Kaspi} (Editor)

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


    The double pulsar system PSR J0737-3039A/B is a highly relativistic double neutron star (DNS) binary, with a 2.4-hour orbital period. The low mass of the second-formed NS, as well the low system eccentricity and proper motion, point to a different evolutionary scenario compared to other known DNS systems. We describe analysis of the pulse profile shape over 6 years of observations, and present the resulting constraints on the system geometry. We find the recycled pulsar in this system, PSR 0737-3039A, to have a low misalignment between its spin and orbital angular momentum axes, with a 68.3% upper limit of 6.1$\,^{\circ}$, assuming emission from both magnetic poles. This tight constraint lends credence to the idea that the supernova that formed the second pulsar was relatively symmetric, possibly involving electron-capture onto an O-Ne-Mg core.
    Original languageEnglish
    Title of host publication40 Years of Pulsars: Millisecond Pulsars, Magnetars and More
    EditorsC {Bassa}, Z {Wang}, A {Cumming}, V M {Kaspi}
    Number of pages5
    Publication statusPublished - Feb 2008

    Publication series

    NameAmerican Institute of Physics Conference Series


    • Pulsars
    • Neutron stars
    • Binary and multiple stars
    • Supernovae


    Dive into the research topics of 'The double pulsar: evolutionary constraints from the system geometry'. Together they form a unique fingerprint.

    Cite this