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Related papers: Pulsar Wind Nebulae in the SKA era

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We discuss the observational properties of pulsar wind nebulae (PWNe) linking them to the injected (at the termination shock) electron spectral energy distribution and parameters of pulsar magnetospheres. In particular, we (1) present…

High Energy Astrophysical Phenomena · Physics 2018-01-24 Oleg Kargaltsev , Noel Klingler , Sarah Chastain , George G Pavlov

Recently, the rapid multiwavelength photometry and flash spectra of supernova (SN) 2013fs imply that the progenitor stars of regular type II SNe (SNe II) might be commonly surrounded with a confined dense stellar wind ejected by themselves…

High Energy Astrophysical Phenomena · Physics 2019-01-31 Zhuo Li

Intermittent pulsars are part-time radio pulsars. They have higher slow down rate in the on state (radio-loud) than in the off state (radio-quiet). This gives the evidence that particle wind may play an important role in pulsar spindown.…

High Energy Astrophysical Phenomena · Physics 2015-06-18 L. Li , H. Tong , W. M. Yan , J. P. Yuan , R. X. Xu , N. Wang

We solve the 1D neutrino-heated non-relativistic MHD wind problem for conditions that range from slowly rotating (spin period P > 10 ms) protoneutron stars (PNSs) with surface field strengths typical of radio pulsars (B < 10^13 G), to…

Astrophysics · Physics 2011-02-11 Brian D. Metzger , Todd A. Thompson , Eliot Quataert

The hypothesis that pulsar wind nebulae (PWNe) can significantly contribute to the excess of the positron ($e^+$) cosmic-ray flux has been consolidated after the observation of a $\gamma$-ray emission at TeV energies of a few degree size…

High Energy Astrophysical Phenomena · Physics 2020-07-15 Silvia Manconi , Mattia Di Mauro , Fiorenza Donato

The merger of a neutron star (NS) binary may result in the formation of a long-lived, or indefinitely stable, millisecond magnetar remnant surrounded by a low-mass ejecta shell. A portion of the magnetar's prodigious rotational energy is…

High Energy Astrophysical Phenomena · Physics 2017-11-10 Ke Fang , Brian D. Metzger

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

Pulsar wind nebulae are fascinating systems, and archetypal sources for high-energy astrophysics in general. Due to their vicinity, brightness, to the fact that they shine at multi-wavelengths, and especially to their long-living emission…

High Energy Astrophysical Phenomena · Physics 2023-03-29 Barbara Olmi , Niccolò Bucciantini

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

We consider nebulae which are created around binary systems containing rotation powered pulsars and companion stars with strong stellar winds. It is proposed that the stellar and pulsar winds have to mix at some distance from the binary…

High Energy Astrophysical Phenomena · Physics 2016-02-12 W. Bednarek , J. Sitarek

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

The general properties of the non-thermal non-pulsed X-ray emission of rotation powered pulsars are investigated in the context of a pulsar wind nebula model. An examination of the observed X-ray emission from a sample of 23 pulsars from…

Astrophysics · Physics 2016-08-30 K. S. Cheng , Ronald E. Taam , W. Wang

The hydrodynamics of the interaction of pulsar and stellar winds in binary systems harboring a pulsar and its impact on the nonthermal radiation of the binary pulsar PSR B1259-63/SS2883 is discussed. The collision of an ultrarelativistic…

As for other areas in modern astronomy, the SKA will revolutionize the field of pulsar astrophysics. Not only will new science be possible by the shear number of pulsars discovered, but also by the unique timing precision achievable with…

Astrophysics · Physics 2007-05-23 Michael Kramer

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

A systematic X-ray survey of the most energetic rotation-powered pulsars known, based on spin-down energy loss rate, $\dot E$ = $I\omega\dot\omega$, shows that all energetic pulsars with $\dot E > \dot E_{c} \approx 3.4 \times\ 10^{36}$ erg…

Astrophysics · Physics 2007-05-23 E. V. Gotthelf

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

The Large High Altitude Air Shower Observatory has reported the detection of cosmic-ray sources in Milky Way that can accelerate particles up to PeV (= 10$^{15}$ eV) energies. These sources, so called ``PeVatrons'', are mostly unidentified.…

High Energy Astrophysical Phenomena · Physics 2022-11-30 Agnibha De Sarkar , Wei Zhang , Jonatan Martín , Diego F. Torres , Jian Li , Xian Hou

In the last decade, ground-based Imaging Atmospheric Cherenkov Telescopes have discovered about 175 very-high-energy (VHE; $E >$ 100 GeV) gamma-ray sources, with more to follow with the development of H.E.S.S. II and CTA. Nearly 40 of these…

High Energy Astrophysical Phenomena · Physics 2018-02-02 Carlo van Rensburg , Christo Venter , Paulus Kruger

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
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