A First XMM-Newton Look at the Relativistic Double Pulsar PSR J0737-3039 | Zendy

A. Pellizzoni | Zendy; A. De Luca | Zendy; S. Mereghetti | Zendy; A. Tiengo | Zendy; F. Mattana | Zendy; P. A. Caraveo | Zendy; M. Tavani | Zendy; G. F. Bignami | Zendy

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A First XMM-Newton Look at the Relativistic Double Pulsar PSR J0737-3039

Author(s) -

A. Pellizzoni,

A. De Luca,

S. Mereghetti,

A. Tiengo,

F. Mattana,

P. A. Caraveo,

M. Tavani,

G. F. Bignami

Publication year - 2004

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/424038

Subject(s) - physics , pulsar , astrophysics , luminosity , flux (metallurgy) , photon , orbital period , neutron star , millisecond pulsar , astronomy , stars , optics , materials science , galaxy , metallurgy

We present the results of a 50 ks long X-ray observation of the relativisticdouble pulsar system PSR J0737-3039 obtained with the XMM-Newton satellite inMarch 2004. The source has a soft spectrum (power law photon index =3.5(+0.5,-0.3)) and a 0.2-10 keV luminosity of ~3x10^30 erg/s (assuming adistance of 500 pc), consistent with the values derived from a previous Chandraobservation. No flux variations have been detected, implying the absence oflarge orbital modulations. The high time resolution of the EPIC instrument hasallowed us to perform the first search for X-ray pulsations from this system.The result was negative, with an upper limit of 60% on the pulsed fraction ofthe 22 ms pulsar.Comment: 14 pages, 3 postscript figures. Accepted for publication in ApJ

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