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Strong neutrino cooling by cycles of electron capture and β− decay in neutron star crusts

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  • H. Schatz

    (National Superconducting Cyclotron Laboratory, Michigan State University, 640 South Shaw Lane, East Lansing, Michigan 48824, USA
    Joint Institute for Nuclear Astrophysics, 225 Nieuwland Science Hall, University of Notre Dame
    Michigan State University, 567 Wilson Road, East Lansing, Michigan 48824, USA)

  • S. Gupta

    (Indian Institute of Technology Ropar, Nangal Road, Rupnagar (Ropar), Punjab 140 001, India)

  • P. Möller

    (Joint Institute for Nuclear Astrophysics, 225 Nieuwland Science Hall, University of Notre Dame
    MS B214, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA)

  • M. Beard

    (Joint Institute for Nuclear Astrophysics, 225 Nieuwland Science Hall, University of Notre Dame
    225 Nieuwland Science Hall, University of Notre Dame)

  • E. F. Brown

    (National Superconducting Cyclotron Laboratory, Michigan State University, 640 South Shaw Lane, East Lansing, Michigan 48824, USA
    Joint Institute for Nuclear Astrophysics, 225 Nieuwland Science Hall, University of Notre Dame
    Michigan State University, 567 Wilson Road, East Lansing, Michigan 48824, USA)

  • A. T. Deibel

    (Joint Institute for Nuclear Astrophysics, 225 Nieuwland Science Hall, University of Notre Dame
    Michigan State University, 567 Wilson Road, East Lansing, Michigan 48824, USA)

  • L. R. Gasques

    (Instituto de Física da Universidade de São Paulo, Caixa Postal 66318, 05315-970 São Paulo, Brazil)

  • W. R. Hix

    (Oak Ridge National Laboratory, PO Box 2008, Oak Ridge, Tennessee 37831-6354, USA
    University of Tennessee, 401 Nielsen Physics Building, 1408 Circle Drive, Knoxville, Tennessee 37996-1200, USA)

  • L. Keek

    (National Superconducting Cyclotron Laboratory, Michigan State University, 640 South Shaw Lane, East Lansing, Michigan 48824, USA
    Joint Institute for Nuclear Astrophysics, 225 Nieuwland Science Hall, University of Notre Dame
    Michigan State University, 567 Wilson Road, East Lansing, Michigan 48824, USA)

  • R. Lau

    (National Superconducting Cyclotron Laboratory, Michigan State University, 640 South Shaw Lane, East Lansing, Michigan 48824, USA
    Joint Institute for Nuclear Astrophysics, 225 Nieuwland Science Hall, University of Notre Dame
    Michigan State University, 567 Wilson Road, East Lansing, Michigan 48824, USA)

  • A. W. Steiner

    (Joint Institute for Nuclear Astrophysics, 225 Nieuwland Science Hall, University of Notre Dame
    Institute for Nuclear Theory, University of Washington, Physics and Astronomy Building, Box 351550, Seattle, Washington 98195-1550, USA)

  • M. Wiescher

    (Joint Institute for Nuclear Astrophysics, 225 Nieuwland Science Hall, University of Notre Dame
    225 Nieuwland Science Hall, University of Notre Dame)

Abstract

Cycles of electron capture and β− decay involving neutron-rich nuclei at a typical depth of about 150 metres are found to cool the outer crust of a neutron star by emitting neutrinos while also thermally decoupling the surface layers from the deeper crust; this mechanism has been studied in other astrophysical environments, but has not hitherto been considered in neutron stars.

Suggested Citation

  • H. Schatz & S. Gupta & P. Möller & M. Beard & E. F. Brown & A. T. Deibel & L. R. Gasques & W. R. Hix & L. Keek & R. Lau & A. W. Steiner & M. Wiescher, 2014. "Strong neutrino cooling by cycles of electron capture and β− decay in neutron star crusts," Nature, Nature, vol. 505(7481), pages 62-65, January.
    • Handle: RePEc:nat:nature:v:505:y:2014:i:7481:d:10.1038_nature12757
    DOI: 10.1038/nature12757
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