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In this review we describe recent observational and theoretical developments in our understanding of pulsar winds and pulsar-wind nebulae (PWNe). We put special emphasis on the results from observations of well-characterized PWNe of various…

High Energy Astrophysical Phenomena · Physics 2015-08-03 Oleg Kargaltsev , Benoit Cerutti , Yuri Lyubarsky , Edoardo Striani

Planetary nebulae (PNe) can be roughly categorized into several broad morphological classes. The high quality images of PNe acquired in recent years, however, have revealed a wealth of fine structures that preclude simplistic models for…

Solar and Stellar Astrophysics · Physics 2015-05-18 L. F. Miranda , G. Ramos-Larios , M. A. Guerrero

The model for pulsar wind nebulae (PWNe) as the result of the magnetohydrodynamic (MHD) downstream flow from a shocked, relativistic pulsar wind has been successful in reproducing many features of the nebulae observed close to the central…

High Energy Astrophysical Phenomena · Physics 2015-06-04 Xiaping Tang , Roger A. Chevalier

Produced by the interaction between the ``pulsar wind'' powered by the rotational energy of a neutron star and its surroundings, the study of pulsar wind nebulae (PWNe) provides vital insight into the physics of neutron star magnetospheres…

In this contribution we review the recent progress in the modeling of Pulsar Wind Nebulae (PWN). We start with a brief overview of the relevant physical processes in the magnetosphere, the wind-zone and the inflated nebula bubble. Radiative…

High Energy Astrophysical Phenomena · Physics 2017-03-16 Oliver Porth , Rolf Buehler , Barbara Olmi , Serguei Komissarov , Astrid Lamberts , Elena Amato , Yajie Yuan , Alexander Rudy

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

The radio, optical, X-ray and gamma-ray nebulae that surround many pulsars are thought to arise from synchrotron and inverse Compton emission. The energy powering this emission, as well as the magnetic fields and relativistic particles, are…

High Energy Astrophysical Phenomena · Physics 2015-05-19 J. G. Kirk

In the last few years, new observations by CHANDRA and XMM have shown that Pulsar Wind Nebulae present a complex but similar inner feature, with the presence of axisymmetric rings and jets, which is generally referred as {\it jet-torus…

Astrophysics · Physics 2008-11-26 N. Bucciantini

The number of plausible associations of extended VHE (TeV) sources with pulsars has been steadily growing, suggesting that many of these sources are pulsar wind nebulae (PWNe). Here we overview the recent progress in X-ray and TeV…

High Energy Astrophysical Phenomena · Physics 2012-07-09 Oleg Kargaltsev , George G. Pavlov , Martin Durant

Pulsar Wind nebulae (PWNe), are among the most efficient particle accelerators in the Universe, however understanding the physical conditions and the magnetic geometry in their inner region has always proved elusive. X-ray polarization…

High Energy Astrophysical Phenomena · Physics 2025-07-02 N. Bucciantini , J. Wong , R. W. Romani , F. Xie , C. -Y. Ng , S. Silvestri , N. Di Lalla , Y. -J. Yang , S. Zhang , P. Slane , W. -T. Ye , M. Pilia , N. Omodei , M. Negro

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

The morphology of young Pulsar Wind Nebulae (PWN) is largely determined by the properties of the wind injected by the pulsar. We have used a recent parametrization of the wind obtained from Force Free Electrodynamics simulations of pulsar…

High Energy Astrophysical Phenomena · Physics 2016-08-04 Rolf Buehler , Matteo Giomi

Bow-shock pulsar wind nebulae (PWNe) show a variety of morphological shapes. We attribute this diversity to the geometrical factors: relative orientations of the pulsar rotation axis, proper velocity, and the line of sight (magnetic…

High Energy Astrophysical Phenomena · Physics 2019-01-30 Maxim V. Barkov , Maxim Lyutikov , Dmitry Khangulyan

We present preliminary results from a systematic spectral study of pulsars and their wind nebulae using the Chandra X-Ray Observatory. The superb spatial resolution of Chandra allows us to differentiate the compact object's spectrum from…

Astrophysics · Physics 2007-05-23 E. V. Gotthelf , C. M. Olbert

A remarkable number of pulsar wind nebulae (PWN) are coincident with EGRET gamma-ray sources. X-ray and radio imaging studies of unidentified EGRET sources have resulted in the discovery of at least 6 new pulsar wind nebulae (PWN).…

The standard approach to the long term evolution of pulsar wind nebulae (PWNe) is based on one-zone models treating the nebula as a uniform system. In particular for the late phase of evolved systems, many of the generally used…

High Energy Astrophysical Phenomena · Physics 2020-10-07 R. Bandiera , N. Bucciantini , J. Martin , B. Olmi , D. F. Torres

Angular momentum loss by the plasma wind is considered as a universal feature of isolated neutron stars including magnetars. The wind nebulae powered by magnetars allow us to compare the wind properties and the spin-evolution of magnetars…

High Energy Astrophysical Phenomena · Physics 2016-08-31 Shuta J. Tanaka

The dynamics, energetics and evolution of pulsar wind nebulae (PWNe) and supernova remnants (SNRs), are strongly affected by their magnetic field strength and distribution. They are usually strong, extended, sources of non-thermal X-ray…

High Energy Astrophysical Phenomena · Physics 2017-08-09 E. de Ona Wilhelmi , J. Vink , A. Bykov , R. Zanin , N. Bucciantini , E. Amato , R. Bandiera , B. Olmi , Yu. Uvarov

Pulsars with high spin-down power produce relativistic winds radiating a fraction of the power in the range from radio to gamma-rays in the pulsar wind nebulae (PWNe). The rest of the power is dissipated in the interactions of the PWNe with…

High Energy Astrophysical Phenomena · Physics 2017-06-30 A. M. Bykov , E. Amato , A. E. Petrov , A. M. Krassilchtchikov , K. P. Levenfish

Pulsar wind nebulae (PWNe) are important sources for understanding galactic high-energy processes, but it is controversial until now about how high-energy particles in PWNe are accelerated and transported. Lacking radio counterparts of…

High Energy Astrophysical Phenomena · Physics 2025-03-04 Yu Zhang , Yihan Liu , C. -Y. Ng , Mallory S. E. Roberts , Lili Yang