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The evolution of pulsar Wind Nebulae (PWNe) influences how high energy particles in the vicinity are generated and transport. The Vela PWN (only $\sim300$\,pc away), provides a rather rare case between young and well-evolved systems. We…

High Energy Astrophysical Phenomena · Physics 2026-03-03 Yihan Liu , Yu Zhang , C. -Y. Ng , Zijian Qiu , Sujie Lin , Lili Yang

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

An observational model is presented for the spectra of young rotation-powered pulsars and their nebulae based on a study of nine bright Crab-like pulsar systems observed with the Chandra X-ray observatory. A significant correlation is…

Astrophysics · Physics 2009-11-07 E. V. Gotthelf

Pulsar wind nebulae (PWNe) are outstanding accelerators in Nature, in the sense that they accelerate electrons up to the radiation reaction limit. Motivated by this observation, this paper examines the possibility that young pulsar wind…

High Energy Astrophysical Phenomena · Physics 2015-09-01 Martin Lemoine , Kumiko Kotera , Jérôme Pétri

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) are the synchrotron bubbles inflated by the rotational energy of a neutron star. Observing variability within them has previously been limited to cases of significant brightening, or the few instances where…

High Energy Astrophysical Phenomena · Physics 2020-09-09 Benson Guest , Samar Safi-Harb

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

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

Context. Pulsar wind nebulae (PWNe) are a source of very high energy radiation that can reach up to tera-electron volts and even peta-electron volts. Our work uses the pulsar tree, a graph theory tool recently presented to analyze the…

High Energy Astrophysical Phenomena · Physics 2024-11-27 Wei Zhang , Diego F. Torres , C. R. García , J. Li , Enrique Mestre

Bow shock pulsar wind nebulae (BSPWNe) are know to show a large variety of shapes and morphologies, both when comparing different objects, and for the same object in different energy bands. It is unclear if such a variety is related to…

High Energy Astrophysical Phenomena · Physics 2019-02-13 Barbara Olmi , Niccolo' Bucciantini

Pulsar wind nebulae (PWNe) are one of the most energetic galactic sources with bright emissions from radio waves to very high-energy gamma-rays. We perform wideband X-ray spectroscopy of four energetic PWNe, N157B, PSR J1813-1749, PSR…

High Energy Astrophysical Phenomena · Physics 2022-08-24 Aya Bamba , Shinpei Shibata , Shuta J. Tanaka , Koji Mori , Hiroyuki Uchida , Yukikatsu Terada , Wataru Ishizaki

(shortened) PSR J1119-6127 is a high magnetic field (B=4.1E13 Gauss), young (<=1,700 year-old), and slow (P=408 ms) radio pulsar associated with the supernova remnant (SNR) G292.2-0.5. In 2003, Chandra allowed the detection of the X-ray…

Astrophysics · Physics 2009-11-13 Samar Safi-Harb , Harsha S. Kumar

Pulsars steadily dissipate their rotational energy via relativistic winds. Confinement of these outflows generates luminous pulsar wind nebulae, seen across the electromagnetic spectrum in synchrotron and inverse Compton emission, and in…

Astrophysics · Physics 2008-11-26 Bryan M. Gaensler , Patrick O. Slane

Pulsar wind nebulae are now well established as important probes both of neutron stars' relativistic winds and of the surrounding interstellar medium. Amongst this diverse group of objects, pulsar bow shocks have long been regarded as an…

Astrophysics · Physics 2009-11-10 Bryan M. Gaensler

Photospheric radius expansion during X-ray bursts can be used to measure neutron star radii and help constrain the equation of state of neutron star matter. Understanding the stellar wind dynamics is important for interpreting observations.…

Solar and Stellar Astrophysics · Physics 2020-07-01 Yago Herrera , Gloria Sala , Jordi José

Neutron stars are among the most fascinating astrophysical sources, being characterized by strong gravity, densities about the nuclear one or even above, and huge magnetic fields. Their observational signatures can be extremely diverse…

High Energy Astrophysical Phenomena · Physics 2017-11-06 L. Del Zanna , A. G. Pili , B. Olmi , N. Bucciantini , E. Amato

Pulsar Wind Nebulae (PWNe) are key astrophysical laboratories for high energy phenomena. Specifically, radio observations and related polarimetry are essential probes to understand acceleration and transport, as well as PWN interaction with…

High Energy Astrophysical Phenomena · Physics 2026-05-26 Haotian Qiu , Yunlei Huang , C-Y. Ng , Lili Yang , Sujie Lin , Yihan Liu

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…

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

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