2010A&A...515A..34K


C.D.S. - SIMBAD4 rel 1.7 - 2020.10.27CET05:29:43

2010A&A...515A..34K - Astronomy and Astrophysics, volume 515, A34-34 (2010/6-1)

Hard X-ray timing and spectral characteristics of the energetic pulsar PSR J0205+6449 in supernova remnant 3C 58. An RXTE PCA/HEXTE and XMM-Newton view on the 0.5-250 keV band.

KUIPER L., HERMSEN W., URAMA J.O., DEN HARTOG P.R., LYNE A.G. and STAPPERS B.W.

Abstract (from CDS):

PSRJ0205+6449 is a young rotation-powered pulsar in SNR 3C58. It is one of only three young (<10000 year old) pulsars that have so far been detected in the radio and the classical X-ray bands, as well as at hard X-rays above 20keV and at high-energy (>100MeV) γ-rays. The other two young pulsars are the Crab and PSR B1509-58. Our aim is to derive the timing and spectral characteristics of PSRJ0205+6449 over the broad X-ray band from ∼0.5 to ∼270keV. We used all publicly available RXTE observations of PSRJ0205+6449 to first generate accurate ephemerides over the period September 30, 2000-March 18, 2006. We then employed phase-folding procedures yielded pulse profiles using data from RXTE PCA and HEXTE, and XMM-Newton EPIC PN. All profiles were phase aligned with a radio profile derived from the Jodrell Bank Observatory data, and the time-averaged timing and spectral characteristics of the pulsed X-ray emission were derived. Our timing solutions are consistent with earlier results, but we detect sharper structures in the PCA X-ray profile. The X-ray pulse profile consists of two sharp pulses, separated in phase by 0.488±0.002, that can be described by 2 asymmetric Lorentzians, each with the rising wing steeper than the trailing wing, and full-width-half-maximum 1.41±0.05ms and 2.35±0.22ms, respectively. For the second, weaker pulse we find an indication of a flux increase by a factor ∼2, about 3.5σ above the time-averaged value, over a two-week interval, during which its pulse shape did not change. The spectrum of the pulsed X-ray emission is non-thermal in origin, exhibiting a power-law shape with photon index Γ=1.03±0.02 over the energy band ∼0.5 to ∼270keV. In the energy band covered with the PCA (∼3-30keV), the spectra of the two pulses have the same photon index, namely, 1.04±0.03 and 1.10±0.08, respectively. Comparisons of the detailed timing and spectral characteristics of PSRJ0205+6449 in the radio, hard X-ray, and gamma-ray bands with those of the Crab pulsar, PSR B1509-58 and the middle-aged Vela pulsar uncover more differences than similarities.

Abstract Copyright:

Journal keyword(s): stars: neutron - pulsars: general - X-rays: general - gamma rays: general - radiation mechanisms: non-thermal

Simbad objects: 7

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Number of rows : 7

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 SNR G130.7+03.1 SNR 02 05 37.0 +64 49 42           ~ 570 4
2 PSR J0205+6449 Psr 02 05 37.92 +64 49 42.8           ~ 213 1
3 V* CM Tau Psr 05 34 31.93830 +22 00 52.1758           ~ 4831 1
4 NAME Vela Pulsar Psr 08 35 20.65525 -45 10 35.1545           ~ 2074 1
5 PSR B1509-58 Psr 15 13 55.52 -59 08 08.8           ~ 799 1
6 PSR J1846-0258 Psr 18 46 24.94 -02 58 30.1           ~ 298 2
7 PSR B1937+21 Psr 19 39 39.6 +21 37 22           ~ 961 2

    Equat.    Gal    SGal    Ecl

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2020.10.27-05:29:43

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