Results 31 to 40 of about 5,865 (191)
TIME-DEPENDENT MODELING OF PULSAR WIND NEBULAE [PDF]
The Astrophysical Journal, 2013 A spatially independent model that calculates the time evolution of the electron spectrum in a spherically expanding pulsar wind nebula (PWN) is presented, allowing one to make broadband predictions for the PWN's non-thermal radiation. The source spectrum of electrons injected at the termination shock of the PWN is chosen to be a broken power law.
Vorster, M. +3 more
openaire +5 more sources
Magnetic Reconnection in the Space Sciences: Past, Present, and Future
Journal 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
X-RAY EVOLUTION OF PULSAR WIND NEBULAE [PDF]
The 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
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A new approach to generate a catalogue of potential historical novae
Astronomische 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
DA 495: An Aging Pulsar Wind Nebula [PDF]
The Astrophysical Journal, 2008 We present a radio continuum study of the pulsar wind nebula (PWN) DA 495 (G65.7+1.2), including images of total intensity and linear polarization from 408 to 10550 MHz based on the Canadian Galactic Plane Survey and observations with the Effelsberg 100-m Radio Telescope.
Kothes, R. +4 more
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Slow motion pulsar wind nebulae
Journal of Physics: Conference Series, 2021 Abstract We show that even the slow (subsonic) motion of pulsar wind nebulae (PWNe) relative to an ambient matter has a significant impact on their observables. The motion changes the appearance of nebulae on X-ray images, comparing to what would be observed for a nebula at rest.
K P Levenfish +4 more
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International Astronomical Union Colloquium, 1996 Abstract I discuss pulsar wind nebulae for which ram pressure from the neutron star’s motion is a key element of the morphology. These PWN are tools for determining the pulsar distance, radial velocity component, and interaction of pulsar winds with surrounding media.
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The Mouse Pulsar Wind Nebula [PDF]
The Astrophysical Journal, 2018 Abstract The young energetic pulsar J1747–2958 (τ = 26 kyr, erg s−1) powers the Mouse pulsar wind nebula (PWN), famous for its spectacular tail spanning 45″ in X-rays and 12′ in radio (d ∼ 5 kpc).
Noel Klingler +5 more
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A Spatially Resolved X-Ray Polarization Map of the Vela Pulsar Wind Nebula
The Astrophysical Journal Letters, 2023 In this paper, we present a full spatially resolved polarization map for the Vela pulsar wind nebula (PWN) observed by IXPE. By employing effective background discrimination techniques, our results show a remarkably high degree of local polarization in ...
Kuan Liu +14 more
doaj +1 more source
Modeling Pulsar Wind Nebulae [PDF]
Advances in Space Research, 2008 22 pages, 7 figures, Proceedings of the 2006 COSPAR Meeting in Beijing, accepted for publication in ...
openaire +2 more sources