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We report on $XMM-Newton$ EPIC observations of the young pulsar J2022+3842, with a characteristic age of 8.9 kyr. We detected X-ray pulsations and found the pulsation period $Papprox 48.6$ ms, and its derivative $dot{P}approx 8.6times 10^{-14}$, twice larger than the previously reported values. The pulsar exhibits two very narrow (FWHM $sim 1.2$ ms) X-ray pulses each rotation, separated by $approx 0.48$ of the period, with a pulsed fraction of $approx 0.8$. Using the correct values of $P$ and $dot{P}$, we calculate the pulsars spin-down power $dot{E}=3.0 times 10^{37}$ erg s$^{-1}$ and magnetic field $B=2.1times 10^{12}$ G. The pulsar spectrum is well modeled with a hard power-law (PL) model (photon index $Gamma = 0.9pm0.1 $, hydrogen column density $n_H = (2.3pm0.3) times 10^{22},{rm cm}^{-2}$). We detect a weak off-pulse emission which can be modeled with a softer PL ($Gamma approx 1.7pm0.7$), poorly constrained because of contamination in the EPIC-pn timing mode data. The pulsars X-ray efficiency in the $0.5-8$ keV energy band, $eta_{rm PSR}= L_{rm PSR}/dot{E} = 2 times 10^{-4} (D/10,{rm kpc})^2$, is similar to those of other pulsars. The $XMM-Newton$ observation did not detect extended emission around the pulsar. Our re-analysis of $Chandra$ X-ray observatory archival data shows a hard, $Gamma approx 0.9 pm 0.5$, spectrum and a low efficiency, $eta_{rm PWN}sim 2times 10^{-5} (D/10,{rm kpc})^2$, for the compact pulsar wind nebula, unresolved in the $XMM-Newton$ images.
We report on an X-ray observation of the 166 Myr old radio pulsar J0108-1431 with XMM-Newton. The X-ray spectrum can be described by a power-law model with a relatively steep photon index Gamma~3 or by a combination of thermal and non-thermal compone
Candidate supernova remnants G23.5+0.1 and G25.5+0.0 were observed by XMM-Newton in the course of a snap-shot survey of plerionic and composite SNRs in the Galactic plane. In the field of G23.5+0.1, we detected an extended source, ~3 in diameter, whi
We report the discovery of PSR J1838-0537, a gamma-ray pulsar found through a blind search of data from the Fermi Large Area Telescope (LAT). The pulsar has a spin frequency of 6.9 Hz and a frequency derivative of -2.2e-11 Hz/s, implying a young char
The relativistic double neutron star binary PSR J0737-3039 shows clear evidence of orbital phase-dependent wind-companion interaction, both in radio and X-rays. In this paper we present the results of timing analysis of PSR J0737-3039 performed durin
XMM-Newton has observed the X-ray sky since early 2000. The XMM-Newton Survey Science Centre Consortium has published catalogues of X-ray and ultraviolet sources found serendipitously in the individual observations. This series is now augmented by a