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Neutron stars lose the bulk of their rotational energy in the form of a pulsar wind: an ultra-relativistic outflow of predominantly electrons and positrons. This pulsar wind significantly impacts the environment and possible binary…

High Energy Astrophysical Phenomena · Physics 2015-01-05 J. D. Gelfand , R. P. Breton , C. -Y. Ng , J. W. T. Hessels , B. Stappers , M. S. E. Roberts , A. Possenti

Pulsar Wind Nebulae (PWNe), structures powered by energetic pulsars, are known for their detection across the entire electromagnetic spectrum, with diverse morphologies and spectral behaviour between these bands. The temporal evolution of…

High Energy Astrophysical Phenomena · Physics 2023-04-05 A. M. W. Mitchell , J. Gelfand

Pulsar Wind Nebulae (PWNe) are ideal astrophysical laboratories where high energy relativistic phenomena can be investigated. They are close, well resolved in our observations, and the knowledge derived in their study has a strong impact in…

High Energy Astrophysical Phenomena · Physics 2015-06-18 N. Bucciantini

Pulsar Wind Nebulae (PWNe) are ideal astrophysical laboratories where high energy relativistic phenomena can be investigated. They are close, well resolved in our observations, and the knowledg derived in their study has a strong impact in…

High Energy Astrophysical Phenomena · Physics 2013-11-25 N. Bucciantini

Pulsar wind nebulae (PWNe), especially the young ones, are among the most energetic astrophysical sources in the Galaxy. It is usually believed that the spin-down energy injected from the pulsars is converted into magnetic field and…

High Energy Astrophysical Phenomena · Physics 2025-01-16 Xuan-Han Liang , Xiao-Bin Chen , Ben Li , Ruo-Yu Liu , Xiang-Yu Wang

We review observations of several classes of neutron-star-powered outflows: pulsar-wind nebulae (PWNe) inside shell supernova remnants (SNRs), PWNe interacting directly with interstellar medium (ISM), and magnetar-powered outflows. We…

High Energy Astrophysical Phenomena · Physics 2017-05-26 Stephen P. Reynolds , George G. Pavlov , Oleg Kargaltsev , Noel Klinger , Matthieu Renaud , Sandro Mereghetti

Our understanding of Pulsar Wind Nebulae (PWNe), has greatly improved in the last years thanks to unprecedented high resolution images taken from the HUBBLE, CHANDRA and XMM satellites. The discovery of complex but similar inner features,…

Astrophysics · Physics 2009-06-23 N. Bucciantini

I review the current status of our theoretical understanding of Pulsar Winds and associated nebulae (PWNe). In recent years, axisymmetric models of pulsar winds with a latitude dependent energy flux have proved very successful at explaining…

High Energy Astrophysical Phenomena · Physics 2015-06-18 E. Amato

Pulsars are rapidly-rotating neutron stars born out of the death of stars. A diffuse nebula is formed when particles stream from these neutron stars and interact with the ambient medium. These pulsar wind nebulae (PWNe) are visible across…

High Energy Astrophysical Phenomena · Physics 2014-01-28 Joshua Lande

Pulsar wind nebulae (PWNe), formed when the wind originating from a rapidly rotating neutron star flows out into its surroundings, have now been observed across the electromagnetic spectrum from the radio to the PeV gamma-ray regime. For…

High Energy Astrophysical Phenomena · Physics 2026-03-19 Alison M. W. Mitchell , Samuel T. Spencer

Pulsar winds shocked in the ambient medium produce spectacular nebulae observable from the radio through gamma-rays. The shape and the spectrum of a pulsar wind nebula (PWN) depend on the angular distribution, magnetization and energy…

Astrophysics · Physics 2009-09-29 O. Kargaltsev , G. G. Pavlov

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

Pulsars are known to be efficient accelerators that produce copious amounts of relativistic particles and inject them into the Galactic medium. The radiation emitted by such a pulsar wind can be seen from radio through gamma-rays as a…

High Energy Astrophysical Phenomena · Physics 2015-05-18 Oleg Kargaltsev , George Pavlov

We review multiwavelength properties of pulsar wind nebulae (PWNe) created by supersonically moving pulsars and the effects of pulsar motion on the PWN morphologies and the ambient medium. Supersonic pulsar wind nebulae (SPWNe) are…

High Energy Astrophysical Phenomena · Physics 2017-11-15 Oleg Kargaltsev , George G. Pavlov , Noel Klingler , Blagoy Rangelov

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 bubbles or relativistic plasma that form when the pulsar wind is confined by the SNR or the ISM. Recent observations have shown a richness of emission features that has driven a renewed interest in the…

High Energy Astrophysical Phenomena · Physics 2015-05-19 N. Bucciantini

Pulsar Wind Nebulae (PWNe) shine at multi-wavelengths and are expected to constitute the largest class of gamma-ray sources in our Galaxy. They are known to be very efficient particle accelerators: the Crab nebula, the PWNe class prototype,…

High Energy Astrophysical Phenomena · Physics 2023-03-27 Barbara Olmi

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

The Crab Nebula demonstrates that neutron stars can interact with their environments in spectacular fashion, their relativistic winds generating nebulae observable across the electromagnetic spectrum. At many previous conferences,…

Astrophysics · Physics 2007-05-23 Bryan M. Gaensler

Pulsars, or more generally rotation powered neutron stars, are excellent factories of antimatter in the Galaxy, in the form of pairs of electrons and positrons. Electrons are initially extracted from the surface of the star by the intense…

High Energy Astrophysical Phenomena · Physics 2010-07-28 Pasquale Blasi , Elena Amato
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