High-energy particles in the wind nebula of pulsar B1509-58 as seen by INTEGRAL

Abstract

We present observations with the INTEGRAL/IBIS telescope of the wind nebula powered by the young pulsar B1509-58 and we discuss the spatial and spectral properties of the unpulsed emission in the 20-200 keV energy band. The source extension and orientation along the northwest-southeast axis corresponds to the jet emission seen at keV and TeV energies. The hard X-ray spectrum is consistent with the earlier Beppo-SAX measurements. It follows a power law with a photon index alpha = -2.12 pm 0.05 up to 160 keV. A possible break at this energy is found at the 2.9 sigma confidence level. The 0.1-100 keV data are consistent with synchrotron aging of pairs in the jet and yield a magnetic field strength of 22-33 muG for a bulk velocity of 0.3-0.5c. The synchrotron cut-off energy thus corresponds to a maximum electron energy of 400-730 TeV.

4 pages, 6 figures, accepted for publication in Apj

References in corpus (9)

• ISGRI: the INTEGRAL Soft Gamma-Ray Imager
• Chandra imaging of the X-ray nebula powered by pulsar B1509-58
• Discovery of extended VHE gamma-ray emission from the asymmetric pulsar wind nebula in MSH 15-52 with H.E.S.S
• SNR G320.4-01.2 and PSR B1509-58: New radio observations of a complex interacting system
• The INTEGRAL IBIS/ISGRI System Point Spread Function and Source Location Accuracy
• Time Variability in the X-ray Nebula Powered by Pulsar B1509-58
• The X-ray Spectrum of the Plerionic System PSR B1509-58/MSH 15-52
• The hard X-ray emission from the complex SNR MSH 15-52 observed by BeppoSAX
• Imaging extended sources with coded mask telescopes: Application to the INTEGRAL IBIS/ISGRI instrument

Cited by in corpus (14)

• Modeling the spectral evolution of PWNe inside SNRs
• Detection of the energetic pulsar PSR B1509-58 and its pulsar wind nebula in MSH 15-52 using the Fermi-Large Area Telescope
• High-Energy X-ray Imaging of the Pulsar Wind Nebula MSH~15-52: Constraints on Particle Acceleration and Transport
• Spatially resolved XMM-Newton analysis and a model of the nonthermal emission of MSH 15-52
• Hard X-ray observations of PSR J1833-1034 and its associated pulsar wind nebula
• X-ray observations of the Large Magellanic Cloud pulsar PSR B0540-69 and its PWN
• INTEGRAL detection of the pulsar wind nebula in PSR J1846-0258
• HESS J1640-465 -- a Gamma-ray emitting pulsar wind nebula ?
• The INTEGRAL view of the pulsating hard X-ray sky: from accreting and transitional millisecond pulsars to rotation-powered pulsars and magnetars
• Observation of an extended VHE gamma-ray emission from MSH 15-52 with CANGAROO-III
• VHE Gamma-ray supernova remnants
• INTEGRAL observations of TeV plerions
• High-resolution Radio Study of Pulsar Wind Nebula MSH 15-52 and Supernova Remnant RCW 89
• INTEGRAL View of TeV Sources: A Legacy for the CTA Project