A double-pulsar system: a rare laboratory for relativistic gravity and plasma physics |
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| Authors: | Lyne A G Burgay M Kramer M Possenti A Manchester R N Camilo F McLaughlin M A Lorimer D R D'Amico N Joshi B C Reynolds J Freire P C C |
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| Institution: | Jodrell Bank Observatory, University of Manchester, Macclesfield SK11 9DL, UK. agl@jb.man.ac.uk |
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| Abstract: | The clocklike properties of pulsars moving in the gravitational fields of their unseen neutron-star companions have allowed unique tests of general relativity and provided evidence for gravitational radiation. We report here the detection of the 2.8-second pulsar J0737-3039B as the companion to the 23-millisecond pulsar J0737-3039A in a highly relativistic double neutron star system, allowing unprecedented tests of fundamental gravitational physics. We observed a short eclipse of J0737-3039A by J0737-3039B and orbital modulation of the flux density and the pulse shape of J0737-3039B, probably because of the influence of J0737-3039A's energy flux on its magnetosphere. These effects will allow us to probe magneto-ionic properties of a pulsar magnetosphere. |
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