Results 21 to 30 of about 54,876 (252)

Positron flux and γ-ray emission from Geminga pulsar and pulsar wind nebula [PDF]

Monthly notices of the Royal Astronomical Society, 2019
Nearby pulsars have been suggested as sources of $\sim$TeV $e^+/e^-$ Cosmic Ray (CR) excess on Earth. The High-Altitude Water Cherenkov Observatory (HAWC) detected extended TeV emission regions in the direction of two nearby middle-aged pulsars, Geminga ...
Xiaping Tang, Tsvi Piran
openalex   +3 more sources

The Pulsar Wind Nebula of the Geminga Pulsar [PDF]

The Astrophysical Journal, 2006
Revised version: data analysis described in more detail, Figure 2 replaced; 6 pages, 2 color figures; accepted for publication in ApJ (v.643, 2006 June 1)
George G. Pavlov, D. Sanwal, V. E. Zavlin   +2 more
openalex   +4 more sources

Pulsar wind nebulae in supernova remnants [PDF]

arXiv, 2000
A spherically symmetric model is presented for the interaction of a pulsar wind with the associated supernova remnant. This results in a pulsar wind nebula whose evolution is coupled to the evolution of the surrounding supernova remnant. This evolution can be divided in three stages.
van der Swaluw, E., Achterberg, A, Gallant, Y.A., Tóth, G.   +3 more
arxiv   +4 more sources

Pulsar wind nebulae of runaway massive stars [PDF]

Monthly Notices of the Royal Astronomical Society: Letters, 2022
A significant fraction of massive stars move at speed through the interstellar medium of galaxies. After their death as core collapse supernovae, a possible final evolutionary state is that of a fast rotating magnetised neutron star, shaping its circumstellar medium into a pulsar wind nebula. Understanding the properties of pulsar wind nebulae requires
D M-A Meyer, Z Meliani
arxiv   +4 more sources

Solution to the Sigma-Problem of Pulsar Wind Nebulae [PDF]

Monthly Notices of the Royal Astronomical Society: Letters, 2012
We present first results of three dimensional relativistic magnetohydrodynamical simulations of Pulsar Wind Nebulae. They show that the kink instability and magnetic dissipation inside these nebulae may be the key processes allowing to reconcile their observations with the theory of pulsar winds.
Rony Keppens, Oliver Porth, Oliver Porth, Serguei S. Komissarov   +3 more
arxiv   +6 more sources

The Pulsar Wind Nebula in G11.2−0.3 [PDF]

The Astrophysical Journal, 2003
4 pages, 2 figures, To appear in "Neutron Stars in Supernova Remnants" (ASP Conference Proceedings), eds P. O. Slane and B.
M. S. Roberts, Cindy R. Tam, V. M. Kaspi, Maxim Lyutikov, Gautam Vasisht, M. J. Pivovaroff, E. V. Gotthelf, N. Kawai   +7 more
openalex   +6 more sources

Pulsar Wind Nebulae Created by Fast-Moving Pulsars [PDF]

Journal of Plasma Physics, 2017
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 characterized by bow-shaped shocks around the pulsar and/or cometary tails filled with the shocked pulsar wind.
Oleg Kargaltsev, George G. Pavlov, Blagoy Rangelov, Blagoy Rangelov, Noel Klingler   +4 more
arxiv   +6 more sources

Dissecting the Crab Nebula with JWST: Pulsar Wind, Dusty Filaments, and Ni/Fe Abundance Constraints on the Explosion Mechanism [PDF]

Astrophysical Journal Letters
We present JWST observations of the Crab Nebula, the iconic remnant of the historical SN 1054. The observations include NIRCam and MIRI imaging mosaics plus MIRI/MRS spectra that probe two select locations within the ejecta filaments.
Tea Temim, J. M. Laming, Patrick Kavanagh, Nathan Smith, Patrick Slane, William P. Blair, I. De Looze, N. Bucciantini, A. Jerkstrand, Nicole Marcelina Gountanis, Ravi Sankrit, D. Milisavljević, A. Rest, Maxim Lyutikov, Joseph DePasquale, Thomas Martin, Laurent Drissen, J. C. Raymond, Ori D. Fox, M. Modjaz, Anatoly Spitkovsky, Louis-Gregory Strolger   +21 more
openalex   +3 more sources

Exploring the non-thermal physics behind the pulsar wind nebula PSR J2030+4415 through radio observations [PDF]

arXiv
PSR J2030+4415 is a gamma-ray pulsar with an X-ray pulsar wind nebula elongated along the north-south direction. The system shows a prominent X-ray filament oriented at an angle of 130{\deg} to the nebula axis. To improve our understanding of the non-thermal processes occurring in the pulsar wind nebula, we attempted to determine the possible existence
J. M. Paredes, P. Benaglia, V. Bosch‐Ramon, A. Tej, Anindya Saha, J. G. Martí, P. Bordas   +6 more
arxiv   +3 more sources

Multiwavelength Observations of Pulsar Wind Nebulae [PDF]

, 2010
The extended nebulae formed as pulsar winds expand into their surroundings provide information about the composition of the winds, the injection history from the host pulsar, and the material into which the nebulae are expanding. Observations from across the electromagnetic spectrum provide constraints on the evolution of the nebulae, the density and ...
arxiv   +5 more sources