Results 71 to 80 of about 1,321 (200)

Turbulent Magnetic Relaxation in Pulsar Wind Nebulae [PDF]

The Astrophysical Journal, 2017
Abstract We present a model for magnetic energy dissipation in a pulsar wind nebula. A better understanding of this process is required to assess the likelihood that certain astrophysical transients may be powered by the spin-down of a “millisecond magnetar.” Examples include superluminous supernovae, gamma-ray bursts, and anticipated ...
Jonathan Zrake, Jonathan Arons
openaire   +2 more sources

A MODEL OF THE SPECTRAL EVOLUTION OF PULSAR WIND NEBULAE [PDF]

The Astrophysical Journal, 2010
Recent observations suggest that many old pulsar wind nebulae (PWNe) are bright TeV gamma-ray sources without a strong X-ray counterpart. In this paper, we study the spectral evolution of PWNe taking into account the energy which was injected when they were young for old PWNe.
Tanaka, S. J., Takahara, F.
openaire   +3 more sources

Discovery of two candidate pulsar wind nebulae in very-high-energy gamma rays [PDF]

, 2007
Context.We present the discovery of two very-high-energy $\gamma$-ray sources in an ongoing systematic search for emission above 100 GeV from pulsar wind nebulae in survey data from the HESS telescope array.
D. Spangler (7600187), M. Füßling (7617542), M. Lemoine-Goumard (7599752), K. J. Orford (7599779), J. M. Martin (7600181), B. Degrange (7599659), V. Sahakian (7599827), G. Dubus (7599668), B. Behera (5159561), G. Pedaletti (7600436), O. Martineau-Huynh (7599761), M. Raue (7599800), L. Rolland (7599821), G. Pelletier (5566976), G. Heinzelmann (7599710), T. Lohse (7599758), M. Ward (3574001), Van Eldik C (7617533), U. Schwanke (7599842), S. Rosier-Lees (7600499), D. Berge (7599623), A. R. Bazer-Bachi (7599614), J. -. P. Tavernet (7600571), B. Glück (7617572), De Jager OC (7617551), I. Büsching (7617548), J. F. Glicenstein (7599698), G. Superina (7600190), K. Kosack (7600463), F. Aharonian (7599605), S. Pita (7599788), C. Stegmann (7599854), D. Nedbal (7600184), Le Gallou R (7601021), D. Horns (7599728), L. Rob (7599818), P. M. Chadwick (7599647), P. -. O. Petrucci (7600352), E. Kendziorra (7582064), R. Steenkamp (7599851), J. -. P. Olive (7601297), H. J. Dickinson (7600166), C. Farnier (7600346), R. Schröder (3530756), S. Schlenker (7599833), S. Carrigan (7600757), M. Tluczykont (7599866), I. J. Latham (7600178), L. -. M. Chounet (7600622), De Naurois M (7617524), H. J. Volk (7599875), A. G. Akhperjanian (7599608), S. J. Wagner (7599878), S. Schwarzburg (7600529), G. Lamanna (7600475), M. Häuser (7617815), T. Boutelier (7600472), D. Emmanoulopoulos (7599671), W. Domainko (7600544), E. Moulin (7600394), I. Braun (7599635), V. Borrel (7600160), S. Funk (7599686), A. Hoffmann (1937761), A. Förster (7617569), N. Komin (7599737), A. Marcowith (7599764), M. Beilicke (7599617), J. A. Hinton (7600136), B. Giebels (7599692), R. Cornils (7599653), A. M. Brown (7599641), S. M. Rayner (7599806), W. Hofmann (7599722), E. Brion (7600781), C. Hadjichristidis (7599704), C. Boisson (3938273), J. L. Osborne (2907383), M. Panter (7599785), K. Bernlöhr (7617518), P. Goret (7599701), L. O. Drury (7599665), A. Jacholkowska (7600172), G. Coignet (7600490), A. Fiasson (7600358), A. Noutsos (7599776), R. Schlickeiser (7599836), M. Punch (7599794), G. Rowell (7599824), F. Feinstein (7599677), A. Shalchi (7600538), G. Pühlhofer (7617566), P. Vincent (1971931), J. Ripken (7599815), H. Sol (7599848), L. Saugé (7617596), P. H. Tam (7600568), R. Bühler (7617521), G. Henri (7599713), C. Masterson (2957730), D. Häuser (7617818), O. Bolz (7599632), G. Maurin (1467919), R. Terrier (7599860), M. Kerschhaggl (7600433), Y. A. Gallant (7599689), G. Hermann (7599716), A. Djannati-Ataï (7617560), A. Lemière (7617554), L. Costamante (7599656), S. Hoppe (7600406), A. Santangelo (4839537), B. Khélifi (7617557), G. Vasileiadis (7599872), P. Espigat (7599674), S. J. Nolan (7599773), K. Egberts (7600334), G. Fontaine (1586569), J. Ruppel (7600508), M. Holleran (7599725), C. Venter (5647607), W. Benbow (7599620), B. C. Raubenheimer (7599797), T. J. L. McComb (7599767), S. Ranchon (7600769), J. P. Vialle (7600592), S. Schwemmer (7600535)   +126 more
core   +4 more sources

Understanding Pulsar Wind Nebulae with the SKA

The Open Journal of Astrophysics
Produced by the interaction between the "pulsar wind'' powered by the rotational energy of a neutron star and its surroundings, the study of pulsar wind nebulae (PWNe) provides vital insight into the physics of neutron star magnetospheres and ultra ...
Joseph D. Gelfand, C.-Y. Ng, B. Posselt, Mallory S. E. Roberts, Subir Bhattacharyya, Shi Dai, Rene Breton, Benjamin Stappers, Andrea Possenti, Jason Hessels, Yifan Sun, Moaz Abdelmaguid, SKA Pulsar Science Working Group   +12 more
doaj   +1 more source

PULSAR WIND NEBULAE WITH THICK TOROIDAL STRUCTURE [PDF]

The Astrophysical Journal, 2011
We investigate a class of pulsar wind nebulae that show synchrotron emission from a thick toroidal structure. The best studied such object is the small radio and X-ray nebula around the Vela pulsar, which can be interpreted as the result of interaction of a mildly supersonic inward flow with the recent pulsar wind.
Chevalier, Roger A., Reynolds, Stephen P.   +1 more
openaire   +2 more sources

Population synthesis of Galactic middle-aged pulsar wind nebulae

Astronomy & Astrophysics
Pulsar wind nebulae (PWNe) constitute the largest population of Galactic very high-energy (VHE; E > 100 GeV) γ-ray sources and are key laboratories for studying particle acceleration and pulsar–supernova remnant (SNR) interactions.
De Sarkar A., Torres D. F., Olmi B., Bucciantini N., Meyer D. M.-A.   +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

Relativistic MHD simulations of pulsar bow-shock nebulae [PDF]

, 2005
Pulsar bow-shock nebulae are a class of pulsar wind nebulae (PWNe) that form when the pulsar wind is confined by the ram pressure of the ambient medium, and are usually associated with old pulsars, that have already emerged from the progenitor Supernova ...
Del Zanna, Luca, L. Del Zanna, Amato, E., E. Amato, N. Bucciantini   +4 more
core   +1 more source

From young to old: the evolutionary path of Pulsar Wind Nebulae [PDF]

, 2023
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 at gamma-rays ...
Bucciantini, Niccolò, Olmi, Barbara
core   +2 more sources

Comparison between the Emission Torus and the Measured Toroidal Magnetic Field for the Crab and Vela Nebulae

The Astrophysical Journal
Polarization measurements provide insight into the magnetic field, a critical aspect of the dynamics and emission properties around the compact object.
Wei Deng, Fei Xie, Kuan Liu, Mingyu Ge, Youli Tuo, Fabio La Monaca, Alessandro Di Marco, En-wei Liang   +7 more
doaj   +1 more source