Results 21 to 30 of about 878 (215)

Pulsar Wind Nebulae

open access: yes, 2022
Invited chapter for the "Handbook of X-ray and Gamma-ray Astrophysics" (Springer) Editors C. Bambi & A. Santangelo. Accepted.
Mitchell, A. M. W., Gelfand, J.
openaire   +2 more sources

Pulsar wind nebulae created by fast-moving pulsars [PDF]

open access: yesJournal of Plasma Physics, 2017
We review multiwavelength properties of pulsar wind nebulae created by supersonically moving pulsars and the effects of pulsar motion on the pulsar wind nebulae morphologies and the ambient medium. Supersonic pulsar wind nebulae are characterized by bow-shaped shocks around the pulsar and/or cometary tails filled with the shocked pulsar wind.
Kargaltsev, Oleg   +3 more
openaire   +2 more sources

Neutrinos from the pulsar wind nebulae [PDF]

open access: bronzeAstronomy & Astrophysics, 2003
In the recent paper we calculated the $ $-ray spectra from pulsar wind nebulae (PWNe), assuming that a significant amount of the pulsar rotational energy is converted into relativistic nuclei. These nuclei accelerate leptons which are responsible for most of the observed electromagnetic emission from PWNe.
W. Bednarek
openalex   +3 more sources

PULSAR WIND NEBULAE MODELING [PDF]

open access: yesInternational Journal of Modern Physics: Conference Series, 2014
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 many other fields, from AGNs to GRBs.
openaire   +2 more sources

Pulsar-Wind Nebulae [PDF]

open access: yesSpace Science Reviews, 2015
60 pages, 20 figures; slightly modified version of the article published in Space Science Reviews; citations added in the revised ...
Kargaltsev, Oleg   +3 more
openaire   +2 more sources

Supernova remnants in nearby galaxies

open access: yesAstronomische Nachrichten, Volume 341, Issue 2, Page 156-162, February 2020., 2020
Abstract Supernova remnants (SNRs) are the aftermath of stellar explosions, which inject large amounts of energy into the interstellar medium (ISM), carving out new structures and transferring kinetic energy to the ISM. They also act as recycling centers, which return elements processed in stars to the ISM, and cosmic particle accelerators.
Manami Sasaki
wiley   +1 more source

X-RAY EVOLUTION OF PULSAR WIND NEBULAE [PDF]

open access: yesThe Astrophysical Journal, 2010
During the search for counterparts of very-high-energy gamma-ray sources, we serendipitously discovered large, extended, low surface brightness emission from PWNe around pulsars with the ages up to ~100 kyrs, a discovery made possible by the low and stable background of the Suzaku X-ray satellite.
Bamba, A.   +6 more
openaire   +3 more sources

Magnetic Reconnection in the Space Sciences: Past, Present, and Future

open access: yesJournal of Geophysical Research: Space Physics, Volume 125, Issue 2, February 2020., 2020
Abstract Magnetic reconnection converts, often explosively, stored magnetic energy to particle energy in space and in the laboratory. Through processes operating on length scales that are tiny, it facilitates energy conversion over dimensions of, in some cases, hundreds of Earth radii.
M. Hesse, P. A. Cassak
wiley   +1 more source

Pulsar Wind Nebulae in Egret Error Boxes [PDF]

open access: yesAstrophysics and Space Science, 2005
A remarkable number of pulsar wind nebulae (PWN) are coincident with EGRET gamma-ray sources. X-ray and radio imaging studies of unidentified EGRET sources have resulted in the discovery of at least 6 new pulsar wind nebulae (PWN). Stationary PWN (SPWN) appear to be associated with steady EGRET sources with hard spectra, typical for gamma-ray pulsars ...
Gaensler, BM   +5 more
openaire   +3 more sources

A new approach to generate a catalogue of potential historical novae

open access: yesAstronomische Nachrichten, Volume 341, Issue 1, Page 79-98, January 2020., 2020
Abstract Ancient Chinese, Korean, and Vietnamese observers left us records of celestial sightings, the so‐called “guest stars” dated up to ∼2500 years ago. Their identification with modern observable targets could open interesting insights into the long‐term behavior of astronomical objects, as shown by the successful identification of eight galactic ...
Susanne M. Hoffmann   +2 more
wiley   +1 more source

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