Results 71 to 80 of about 5,865 (191)

Laue Gamma‐Ray Lenses for Space Astrophysics: Status and Prospects

X-Ray Optics and Instrumentation, Volume 2010, Issue 1, 2010., 2010
We review feasibility studies, technological developments, and the astrophysical prospects for Laue lenses devoted to hard X‐/gamma‐ray astronomy observations.
Filippo Frontera, Peter von Ballmoos, Stephen L. O′Dell   +2 more
wiley   +1 more source

Diffusive synchrotron radiation from pulsar wind nebulae [PDF]

Monthly Notices of the Royal Astronomical Society, 2007
Diffusive Synchrotron Radiation (DSR) is produced by charged particles as they random walk in a stochastic magnetic field. The spectrum of the radiation produced by particles in such fields differs substantially from those of standard synchrotron emission because the corresponding particle trajectories deviate significantly from gyration in a regular ...
Fleishman, G. D., Bietenholz, M. F.
openaire   +2 more sources

A Spatially Resolved Turbulent Transport Model of the Spectrum and Extension of the Crab Nebula

The Astrophysical Journal
The Crab Nebula is an exceptional astrophysical laboratory for studying the acceleration, transportation, and radiation of ultrarelativistic particles, since its nonthermal emission extends across the entire electromagnetic spectrum up to the PeV γ -rays.
Fang-Wu Lu, Bo-Tao Zhu, Ji-Yang Ren, Wen Hu, Li Zhang   +4 more
doaj   +1 more source

Fermi-LAT Detection of the Supernova Remnant G312.4-0.4 in the Vicinity of 4FGL J1409.1-6121e

The Astrophysical Journal, 2023
Gamma-ray emission provides constraints on the nonthermal radiation processes at play in astrophysical particle accelerators. This allows both the nature of accelerated particles and the maximum energy that they can reach to be determined.
Pauline Chambery, Marianne Lemoine-Goumard, Armelle Jardin-Blicq, Atreyee Sinha, J. Eagle   +4 more
doaj   +1 more source

Multiwavelength Observations of Pulsar Wind Nebulae

, 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
A Lemiere, A Pellizzoni, A Spitkovsky, AA Abdo, BM Gaensler, BM Gaensler, DA Frail, DA Green, DK Milne, E Giacani, E Swaluw van der, EV Gotthelf, F Bocchino, F Pacini, FA Aharonian, FA Aharonian, FR Stephenson, GC Rudie, J Fang, JD Gelfand, JM Blondin, MC Begelman, MF Bietenholz, N Bucciantini, OC Jager de, P Slane, P Slane, P Slane, PA Shaver, RA Chevalier, RA Chevalier, S Funk, SM LaMassa, SP Reynolds, T Temim, T Temim, V Mangano, YA Shibanov, YE Lyubarsky   +38 more
core   +1 more source

Pulsar-wind nebulae and magnetar outflows: observations at radio, X-ray, and gamma-ray wavelengths [PDF]

, 2017
We review observations of several classes of neutron-star-powered outflows: pulsar-wind nebulae (PWNe) inside shell supernova remnants (SNRs), PWNe interacting directly with interstellar medium (ISM), and magnetar-powered outflows.
A. Abramowski, A. Abramowski, A. Abramowski, A. Abramowski, A. Bykov, A. Djannati-Ataï, A. Etten Van, A. Luca de, A. Luca de, A. Rosa de, A. Tiengo, A. Tiengo, A. Zajczyk, A.A. Abdo, A.K. Harding, A.M. Bykov, B. Posselt, B.-C. Koo, B.J. Williams, B.M. Gaensler, B.M. Gaensler, B.M. Gaensler, B.M. Gaensler, B.M. Gaensler, B.M. Gaensler, B.S. Acharya, C. Kouveliotou, C. Thompson, C.-Y. Ng, C.A. Hales, C.C. Lang, C.F. Kennel, C.F. Kennel, C.J. Salter, C.Y. Hui, D. Hooper, D. Viganò, D.A. Frail, D.A. Frail, D.A. Green, D.A. Green, D.D. Frederiks, D.F. Figer, D.F. Torres, D.J. Helfand, D.L. Kaplan, D.S. Wong, E. Fuerst, E. Nakar, E. Oña-Wilhelmi de, E. Swaluw van der, E. Swaluw van der, E.L. Blanton, E.V. Gotthelf, F. Acero, F. Acero, F. Aharonian, F. Aharonian, F. Aharonian, F. Bocchino, F. Bocchino, F. Camilo, F. Mattana, F. Pacini, F. Yusef-Zadeh, F. Yusef-Zadeh, F.A. Harrison, F.D. Seward, F.J. Lu, F.P. Gavriil, F.P. Wilkin, G. Dubus, G. Morlino, G. Younes, G.G. Pavlov, G.G. Pavlov, G.G. Pavlov, G.G. Pavlov, G.L. Israel, H. An, H. Matheson, H. Matheson, H. Tong, H.L. Kestenbaum, J. Faherty, J. Fang, J. Granot, J. Granot, J. Martín, J.A. Hinton, J.D. Gelfand, J.D. Gelfand, J.G. Kirk, J.M. Blondin, J.M. Cordes, K. Auchettl, K. Mori, K.E. McGowan, K.J. Borkowski, K.K. Madsen, K.W. Weiler, L. Bîrzan, L. Gratton, L. Pavan, L. Zanna Del, M. Ackermann, M. Aguilar, M. Aguilar, M. Arnaud, M. Boudaud, M. Lemoine-Goumard, M. Lyutikov, M. Marelli, M. Mauro Di, M. Nynka, M. Vigelius, M.-H. Grondin, M.-H. Grondin, M.C. Weisskopf, M.F. Bietenholz, M.J. Vorster, M.M. Romanova, M.S.E. Roberts, N. Bucciantini, N. Bucciantini, N. Klingler, N. Klingler, N.I. Serafimovich, N.S. Kardashev, O. Kargaltsev, O. Kargaltsev, O. Kargaltsev, O.C. Jager de, P. Esposito, P. Esposito, P. Kaaret, P. Slane, P. Slane, P. Slane, P.A. Caraveo, P.B. Cameron, R. Bandiera, R. Bandiera, R. Kothes, R. Kothes, R.A. Chevalier, R.N. Manchester, R.P. Mignani, R.W. Romani, S. Chatterjee, S. Della Torre, S. Funk, S. Mereghetti, S. Mereghetti, S. Park, S.A. Olausen, S.E. Boggs, S.J. Tanaka, S.J. Tanaka, S.M. LaMassa, S.P. Johnson, S.P. Reynolds, S.P. Reynolds, S.P. Reynolds, S.P. Reynolds, S.P. Reynolds, S.S. Komissarov, S.V. Zharikov, T. Dolch, T. Temim, T. Temim, T. Temim, T.A. Porter, T.L. Landecker, W. Ku, W.W. Tian, X. Tang, Z. Arzoumanian, Z. Arzoumanian   +178 more
core   +2 more sources

Positrons from pulsar winds

, 2010
Pulsars, or more generally rotation powered neutron stars, are excellent factories of antimatter in the Galaxy, in the form of pairs of electrons and positrons.
Amato, Elena, Blasi, Pasquale
core   +1 more source

The Theory of Pulsar Winds and Nebulae [PDF]

, 2009
We review current theoretical ideas on pulsar winds and their surrounding nebulae. Relativistic MHD models of the wind of the aligned rotator, and of the striped wind, together with models of magnetic dissipation are discussed. It is shown that the observational signature of this dissipation is likely to be point-like, rather than extended, and that ...
Kirk, J., Lyubarsky, Y., Pétri, J.
openaire   +3 more sources

Simulated synchrotron emission from pulsar wind nebulae [PDF]

Astronomy & Astrophysics, 2006
A complete set of diagnostic tools aimed at producing synthetic synchrotron emissivity, polarization, and spectral index maps from relativistic MHD simulations is presented. As a first application we consider here the case of the emission from Pulsar Wind Nebulae (PWNe).
DEL ZANNA, LUCA, D. VOLPI, E. AMATO, N. BUCCIANTINI   +3 more
openaire   +3 more sources

Three-dimensional Analytical Description of Magnetised Winds from Oblique Pulsars

, 2015
Rotating neutron stars, or pulsars, are plausibly the source of power behind many astrophysical systems, such as gamma-ray bursts, supernovae, pulsar wind nebulae and supernova remnants.
Philippov, Alexander, Spitkovsky, Anatoly, Tchekhovskoy, Alexander   +2 more
core   +1 more source