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Pulsar bow-shock nebulae are a class of pulsar wind nebulae (PWNe) that form when the pulsar wind is confined by the ram pressure of the ambient medium, and are usually associated with old pulsars, that have already emerged from the…

Astrophysics · Physics 2009-11-10 N. Bucciantini , E. Amato , L. Del Zanna

Pulsars out of their parent SNR directly interact with the ISM producing so called Bow-Shock Pulsar Wind Nebulae, the relativistic equivalents of the heliosphere/heliotail system. These have been directly observed from Radio to X-ray, and…

High Energy Astrophysical Phenomena · Physics 2020-12-09 N. Bucciantini , B. Olmi , L. Del Zanna

Bow-shock pulsar wind nebulae are a subset of pulsar wind nebulae that form when the pulsar has high velocity due to the natal kick during the supernova explosion. The interaction between the relativistic wind from the fast-moving pulsar…

High Energy Astrophysical Phenomena · Physics 2016-11-23 Doosoo Yoon , Sebastian Heinz

Many pulsars propagate through the interstellar medium (ISM) with supersonic velocities, and their pulsar winds interact with the interstellar medium (ISM), forming bow shocks and magnetotails (PWN). We model the propagation of pulsars…

High Energy Astrophysical Phenomena · Physics 2019-01-23 O. D. Toropina , M. M. Romanova , R. V. E. Lovelace

A significative fraction of high mass stars sail away through the interstellar medium of the galaxies. Once they evolved and died via a core collapse supernova, a magnetized, rotating neutron star (a pulsar) is usually their leftover. The…

High Energy Astrophysical Phenomena · Physics 2024-09-25 D. M. A. Meyer , Z Meliani , D. F. Torres

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

Bow shock pulsar wind nebulae are observed with a variety of complex morphologies at different wavelengths, most likely due to differences in the magnetic field strength and pulsar wind geometry. Here we present a detailed analysis, showing…

High Energy Astrophysical Phenomena · Physics 2019-08-07 B. Olmi , N. Bucciantini

The interaction between a pulsar wind nebula (PWN) and its host supernova remnant (SNR) can produce a vast array of observable structures. Asymmetry present within these structures derives from the complexity of the composite system, where…

High Energy Astrophysical Phenomena · Physics 2017-07-26 Christopher Kolb , John Blondin , Patrick Slane , Tea Temim

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

We investigate the dynamics of bow shock nebulae created by pulsars moving supersonically through a partially ionized interstellar medium. A fraction of interstellar neutral hydrogen atoms penetrating into the tail region of a pulsar wind…

High Energy Astrophysical Phenomena · Physics 2015-11-04 G. Morlino , M. Lyutikov , M. J. Vorster

We present hydrodynamical simulations, using a 2-D two fluid model, of bow shocks in a representative regime for pulsar wind driven bow-shock nebulae. We also investigate the behaviour of a passive toroidal magnetic field wounded around the…

Astrophysics · Physics 2007-05-23 N. Bucciantini

When a pulsar is moving through a partially ionized medium, a fraction of neutral Hydrogen atoms penetrate inside the pulsar wind and can be photo-ionized by the nebula UV radiation. The resulting protons remains attached to the magnetic…

High Energy Astrophysical Phenomena · Physics 2018-09-26 Barbara Olmi , Niccolò Bucciantini , Giovanni Morlino

We investigate the dynamics of bow shock nebulae created by pulsars moving supersonically through a partially ionized interstellar medium. A fraction of interstellar neutral hydrogen atoms penetrating into the tail region of a pulsar wind…

High Energy Astrophysical Phenomena · Physics 2016-04-19 G. Morlino , M. Lyutikov , M. Vorster

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 moving through ISM produce bow shocks detected in hydrogen H$\alpha$ line emission. The morphology of the bow shock nebulae allows one to probe the properties of ISM on scales $\sim 0.01$ pc and smaller. We performed 2D RMHD…

High Energy Astrophysical Phenomena · Physics 2020-06-17 Maxim Barkov , Maxim Lyutikov , Dmitry Khangulyan

Bow shock pulsar wind nebulae are a large class of non-thermal synchrotron sources associated to old pulsars, that have emerged from their parent supernova remnant and are directly interacting with the interstellar medium. Within this class…

High Energy Astrophysical Phenomena · Physics 2019-10-16 Barbara Olmi , Niccolò Bucciantini

Pulsar wind nebulae are a possible final stage of the circumstellar evolution of massive stars, where a fast rotating, magnetised neutron star produces a powerful wind that interacts with the supernova ejecta. The shape of these so called…

High Energy Astrophysical Phenomena · Physics 2023-11-14 Meyer D. M. -A. , Meliani Z. , Velazquez P. F. , Pohl M. , Torres D. F.

We present hydrodynamical simulations, using a 2-D two component model (ambient medium and pul sar wind have different specific heat ratios), of bow shocks in a representative regime for pu lsar wind driven bow-shock nebulae. We also…

Astrophysics · Physics 2009-11-07 N. Bucciantini

The interaction of the wind from a pulsar (or more generally from a star) with t he amb ient medium gives rise to the formation of a bow-shock nebula. We present a mode l of adiabatic bow-shock nebulae, including the presence of a neutral…

Astrophysics · Physics 2009-11-07 N. Bucciantini

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
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