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Related papers: Pulsar Wind Nebulae in the Chandra Era

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The increasing sensitivity of instruments at X-ray and TeV energies have revealed a large number of nebulae associated with bright pulsars. Despite this large data set, the observed pulsar wind nebulae (PWNe) do not show a uniform behavior…

High Energy Astrophysical Phenomena · Physics 2014-02-25 Diego F. Torres , Analía Cillis , Jonatan Martín , Emma de Oña Wilhelmi

Pulsar wind nebulae (PWNe) are clouds of the magnetized relativistic electron/positron plasma supplied from the central pulsar. However, the number of radio-emitting particles inside a PWN is larger than the expectation from the study of…

High Energy Astrophysical Phenomena · Physics 2024-05-08 Shuta J. Tanaka , Wataru Ishizaki

We present new high-resolution radio and X-ray observations of the supernova remnant (SNR) B0453-685 in the Large Magellanic Cloud, carried out with the Australia Telescope Compact Array and the Chandra X-ray Observatory respectively.…

Astrophysics · Physics 2009-11-07 B. M. Gaensler , S. P. Hendrick , S. P. Reynolds , K. J. Borkowski

The role pulsar wind nebulae play in producing our locally observed cosmic ray spectrum remains murky, yet intriguing. Pulsar wind nebulae are born and evolve in conjunction with SNRs, which are favored sites of Galactic cosmic ray…

High Energy Astrophysical Phenomena · Physics 2019-08-14 A. Weinstein

A recent research shows that particles with a spectrum of a relativistic Maxwellian plus a high-energy tail can be accelerated by relativistic collisionless shocks. We investigate the possibility of the high-energy particles with this new…

High Energy Astrophysical Phenomena · Physics 2015-05-18 J. Fang , L. Zhang

A large part of the Galactic sources emitting very high energy (VHE; > 10^{11} eV) gamma-rays are currently still unidentified. The evolution of Pulsar Wind Nebulae (PWNe) plays a crucial role in interpreting these sources. The…

High Energy Astrophysical Phenomena · Physics 2018-05-30 S. Kaufmann , O. Tibolla

The excellent sensitivity and high resolution capability of wide FoV ground-based imaging atmospheric Cerenkov telescopes allow us for the first time to resolve the morphological structures of pulsar wind nebulae (PWN) which are older and…

Astrophysics · Physics 2007-05-23 O. C. de Jager , C. Venter

As part of a multiwavelength study of the unusual radio supernova remnant DA 495, we present observations made with the Chandra X-ray Observatory. Imaging and spectroscopic analysis confirms the previously detected X-ray source at the heart…

Astrophysics · Physics 2009-11-13 Z. Arzoumanian , S. Safi-Harb , T. L. Landecker , R. Kothes , F. Camilo

Pulsar Wind Nebulae (PWNe) constitute an ideal astrophysical environment to test our current understanding of relativistic plasma processes. It is well known that magnetic fields play a crucial role in their dynamics and emission…

High Energy Astrophysical Phenomena · Physics 2017-08-02 N. Bucciantini , R. Bandiera , B. Olmi , L. Del Zanna

We present the first images of the pulsar wind nebula (PWN) MSH 15-52 in the hard X-ray band (>8 keV), as measured with the Nuclear Spectroscopic Telescope Array (NuSTAR). Overall, the morphology of the PWN as measured by NuSTAR in the 3-7…

Pulsar wind nebulae (PWNe) produced from supersonic runaway pulsars can render extended X-ray structures in the form of tails and prominent jets. In this Letter we report on the analysis of $\sim$130 ks observations of the PWN around…

High Energy Astrophysical Phenomena · Physics 2020-12-16 Pol Bordas , Xiying Zhang

Using the Australia Telescope Compact Array (ATCA) we have imaged the fields around five promising pulsar candidates to search for radio pulsar wind nebulae (PWNe). We have used the ATCA in its pulsar gating mode; this enables an image to…

Astrophysics · Physics 2009-10-31 B. W. Stappers , B. M. Gaensler , S. Johnston

Pulsar Wind Nebulae (PWNe) act as calorimeters for the relativistic pair winds emanating from within the pulsar light cylinder. Their radiative dissipation in various wavebands is significantly different from that of their pulsar central…

High Energy Astrophysical Phenomena · Physics 2015-05-19 Matthew G. Baring

We present deep Chandra observations of the pulsar wind nebula (PWN) powered by PSR J0007+7303 in the composite supernova remnant CTA 1. The merged ACIS image shows a $\sim20''$ jet extending south of the pulsar and bending toward the…

High Energy Astrophysical Phenomena · Physics 2026-05-21 Seth Gagnon , Oleg Kargaltsev , Jason Alford , Joseph Gelfand , Alexander Lange

Based on the expected population of core collapse supernova remnants and the huge number of detected pulsars in the Galaxy, still representing only a fraction of the real population, pulsar wind nebulae are likely to constitute one of the…

High Energy Astrophysical Phenomena · Physics 2023-09-06 Barbara Olmi

We present observations with the Chandra X-ray Observatory of the pulsar wind nebula (PWN) powered by the energetic young pulsar B1509-58. These data confirm the complicated morphology of the system indicated by previous observations, and…

Astrophysics · Physics 2009-11-07 B. M. Gaensler , J. Arons , V. M. Kaspi , M. J. Pivovaroff , N. Kawai , K. Tamura

Energetic pulsars power winds of relativistic leptons which produce photon nebulae (so- called pulsar wind nebulae, PWNe). Their spectral energy distribution has a double-humped structure: the first hump lies in the X-ray regime, the second…

Astrophysics of Galaxies · Physics 2013-05-16 M. Mayer , J. Brucker , M. Holler , I. Jung , K. Valerius , C. Stegmann

Pulsar Wind Nebulae are the astrophysical sources that host the most relativistic shocks in Nature and the only Galactic sources in which we have direct evidence of PeV particles. These facts make them very interesting from the point of…

High Energy Astrophysical Phenomena · Physics 2015-03-10 Elena Amato

We report on an observation of the Vela-like pulsar B1823-13 and its synchrotron nebula with Chandra.The pulsar's spectrum fits a power-law model with a photon index Gamma_PSR=2.4 for the plausible hydrogen column density n_H=10^{22}…

Astrophysics · Physics 2009-11-13 G. G. Pavlov , O. Kargaltsev , W. F. Brisken

Previous searches for radio pulsar wind nebulae (PWN) suggest that only the youngest and most energetic pulsars power PWN. However the selection effects associated with such searches are severe, in that emission from a faint compact PWN…

Astrophysics · Physics 2007-05-23 B. M. Gaensler , B. W. Stappers , D. A. Frail , S. Johnston