Discovery of X-ray emission from the young radio pulsar PSR J1357-6429

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dc.creatorEsposito, P.
dc.creatorTiengo, A.
dc.creatorDe Luca, A.
dc.creatorMattana, F.
dc.date2007-04-02
dc.date2007-04-11
dc.date.accessioned2026-07-07T12:44:27Z
dc.date.available2026-07-07T12:44:27Z
dc.descriptionWe present the first X-ray detection of the very young pulsar PSR J1357-6429 (characteristic age of 7.3 kyr) using data from the XMM-Newton and Chandra satellites. We find that the spectrum is well described by a power-law plus blackbody model, with photon index Gamma=1.4 and blackbody temperature kT=160 eV. For the estimated distance of 2.5 kpc, this corresponds to a 2-10 keV luminosity of about 1.2E+32 erg/s, thus the fraction of the spin-down energy channeled by PSR J1357-6429 into X-ray emission is one of the lowest observed. The Chandra data confirm the positional coincidence with the radio pulsar and allow to set an upper limit of 3E+31 erg/s on the 2-10 keV luminosity of a compact pulsar wind nebula. We do not detect any pulsed emission from the source and determine an upper limit of 30% for the modulation amplitude of the X-ray emission at the radio frequency of the pulsar.
dc.descriptionRevised version (minor changes in text and figures). Accepted for publication on Astronomy and Astrophysics Letters on 10/04/2007
dc.identifierhttps://arxiv.org/abs/0704.0205
dc.identifierhttp://arxiv.org/abs/0704.0205
dc.identifierAstronomy and Astrophysics, Volume 467, Issue 2, May IV 2007, pp.L45-L48
dc.identifierdoi:10.1051/0004-6361:20077480
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/220775
dc.subjectAstrophysics
dc.titleDiscovery of X-ray emission from the young radio pulsar PSR J1357-6429
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