Results 11 to 20 of about 54,876 (252)

Resolving the Crab pulsar wind nebula at teraelectronvolt energies [PDF]

Nature Astronomy, 2019
The Crab nebula is one of the most-studied cosmic particle accelerators, shining brightly across the entire electromagnetic spectrum up to very-high-energy gamma rays1,2.
H. Abdalla, F. Aharonian, F. Ait Benkhali, E. O. Angüner, Masanori Arakawa, C. Arcaro, Céline Armand, Michael Backes, M. Barnard, Y. Becherini, J. Becker Tjus, D. Berge, K. Bernlöhr, R. Blackwell, M. Böttcher, C. Boisson, J. Bolmont, S. Bonnefoy, P. Bordas, J. Bregeon, F. Brun, P. Brun, M. Bryan, M. Büchele, T. Bulik, T. Bylund, M. Capasso, Sami Caroff, A. Carosi, S. Casanova, M. Cerruti, Nachiketa Chakraborty, T. Chand, S. Chandra, R. C. G. Chaves, A. Chen, S. Colafrancesco, B. Condon, I. D. Davids, C. Deil, J. Devin, P. deWilt, L. Dirson, A. Djannati-Ataı̈, A. Dmytriiev, Axel Donath, Victor Doroshenko, L. O’C. Drury, J. Dyks, K. Egberts, G. Emery, J.-P. Ernenwein, S. Eschbach, S. Fegan, A. Fiaßon, G. Fontaine, S. Funk, M. Füßling, S. Gabici, Y. A. Gallant, F. Gaté, G. Giavitto, D. Glawion, J. F. Glicenstein, D. Gottschall, M.-H. Grondin, Joachim Hahn, M. Haupt, G. Heinzelmann, G. Henri, G. Hermann, J. A. Hinton, W. Hofmann, C. Hoischen, T. L. Holch, M. Holler, D. Horns, David Miles Huber, H. Iwasaki, A. Jachołkowska, M. Jamrozy, D. Jankowsky, F. Jankowsky, L. Jouvin, I. Jung-Richardt, M. A. Kastendieck, K. Katarzyński, M. Katsuragawa, U. Katz, D. Khangulyan, B. Khélifi, J. King, S. Klepser, W. Kluźniak, Nu. Komin, K. Kosack, M. Kraus, G. Lamanna, J. Lau, J. Lefaucheur   +99 more
semanticscholar   +18 more sources

Likely Detection of GeV γ-Ray Emission from Pulsar Wind Nebula G32.64+0.53 with Fermi-LAT [PDF]

The Astrophysical Journal
In this study, we report the likely GeV γ -ray emissions originating from the pulsar PSR J1849-0001's pulsar wind nebula (PWN) G32.64+0.53. Our analysis covers approximately 14.7 yr of data from the Fermi Large Area Telescope Pass 8.
Yifan Xiao, Keyao Wu, Jun Fang
doaj   +2 more sources

GeV Gamma-Ray Emission from Pulsar Wind Nebula HESS J1356-645 with Fermi-Large Area Telescope [PDF]

The Astrophysical Journal, 2023
HESS J1356-645 is considered to be a pulsar wind nebula (PWN) associated with the pulsar PSR J1357-6429. We reanalyze the GeV gamma-ray emission in the direction of HESS J1356-645 with more than 13 yr of Fermi-Large Area Telescope data.
Xi Liu, Xiaolei Guo, Yuliang Xin, Fengrong Zhu, Siming Liu   +4 more
doaj   +2 more sources

HESS J1809$-$193: a halo of escaped electrons around a pulsar wind nebula? [PDF]

Astronomy & Astrophysics, 2023
Context. HESS J1809$-$193 is an unassociated very-high-energy $\gamma$-ray source located on the Galactic plane. While it has been connected to the nebula of the energetic pulsar PSR J1809$-$1917, supernova remnants and molecular clouds present in the ...
H. E. S. S. Collaboration, NULL AUTHOR_ID, F. Aharonian, F. Ait Benkhali, J. Aschersleben, H. Ashkar, Michael Backes, V. Barbosa Martins, Rowan William Batzofin, Y. Becherini, D. Berge, M. Böttcher, C. Boisson, J. Bolmont, Jowita Borowska, M. Bouyahiaoui, F. Bradascio, M. Breuhaus, Robert Brose, F. Brun, B. Bruno, T. Bulik, C. Burger-Scheidlin, T. Bylund, Sami Caroff, S. Casanova, Jelena Celic, M. Cerruti, Pauline Chambery, T. Chand, A. Chen, James O. Chibueze, Ogochukwu Chibueze, J. Damascene Mbarubucyeye, A. Djannati-Ataı̈, A. Dmytriiev, S. Einecke, J.-P. Ernenwein, Kirsty Feijen, M. D. Filipović, G. Fontaine, M. Füßling, S. Funk, S. Gabici, Y. A. Gallant, S. Ghafourizadeh, G. Giavitto, L. Giunti, D. Glawion, P. Goswami, Guillaume Grolleron, M. -H. Grondin, L. Haerer, J. A. Hinton, Werner Hofmann, T. L. Holch, M. Holler, D. Horns, Z. C. Huang, M. Jamrozy, F. Jankowsky, Vikas Joshi, I. Jung-Richardt, E. Kasai, K. Katarzyński, B. Khélifi, W. Kluźniak, Nu. Komin, K. Kosack, D. Kostunin, R. G. Lang, S. Le Stum, F. Leitl, A. Lemière, M. Lemoine‐Goumard, J.-P. Lenain, Fabian Leuschner, T. Lohse, Anna Luashvili, I. Lypova, Jonathan Mackey, D. Malyshev, D. Malyshev, V. Marandon, P. Marchegiani, A. Marcowith, Peter David Marinos, G. Martí-Devesa, R. Marx, A. Mitchell, R. Moderski, L. Mohrmann, A. Montanari, E. Moulin, J. M. Muller, K. Nakashima, M. de Naurois, J. Niemiec, A. Priyana Noel, S. Ohm   +99 more
openalex   +3 more sources

LHAASO J2226+6057 as a pulsar wind nebula [PDF]

Astronomy & Astrophysics, 2022
The Large High Altitude Air Shower Observatory has reported the detection of cosmic-ray sources in Milky Way that can accelerate particles up to PeV (= 10$^{15}$ eV) energies. These sources, so called ``PeVatrons'', are mostly unidentified.
Agnibha De Sarkar, Wei Zhang, J. Martín, D. F. Torres, Jian Li, X. T. Hou   +5 more
openalex   +3 more sources

A radio continuum and polarization study of the pulsar wind nebula CTB 87 (G74.9+1.2) [PDF]

Monthly notices of the Royal Astronomical Society, 2020
We present radio continuum and linear polarization observations of the pulsar wind nebula (PWN) CTB 87 (G74.9+1.2) with the Effelsberg 100-m Radio Telescope between 4.75 and 32 GHz.
R. Kothes, W. Reich, Samar Safi‐Harb, Benson T. Guest, P. Reich, E. Fürst   +5 more
openalex   +3 more sources

Chandra Monitoring of the J1809–1917 Pulsar Wind Nebula and Its Field [PDF]

Astrophysical Journal, 2020
PSR J1809–1917 is a young (τ = 51 kyr) and energetic ( erg s−1) radio pulsar powering an X-ray pulsar wind nebula (PWN) that exhibits morphological variability.
N. J. Klingler, Hui Yang, Jeremy Hare, Oleg Kargaltsev, George G. Pavlov, Bettina Posselt   +5 more
openalex   +3 more sources

Possible GeV gamma-ray emission from the pulsar wind nebula in CTA 1 [PDF]

Monthly notices of the Royal Astronomical Society
We report a detection of GeV γ-ray emission potentially originating from the pulsar wind nebula in CTA 1 by analyzing about 15 yr of Fermi Large Area Telescope data.
Liancheng Zhou, Keyao Wu, Yunlu Gong, Jun Fang   +3 more
openalex   +3 more sources

The imprint of pulsar parameters on the morphology of Pulsar Wind Nebulae [PDF]

Monthly Notices of the Royal Astronomical Society, 2016
The morphology of young Pulsar Wind Nebulae (PWN) is largely determined by the properties of the wind injected by the pulsar. We have used a recent parametrization of the wind obtained from Force Free Electrodynamics simulations of pulsar magnetospheres to simulate nebulae for different sets of pulsar parameters.
Bühler, Rolf, Giomi, Matteo
arxiv   +6 more sources

The Evolution and Structure of Pulsar Wind Nebulae [PDF]

Ann.Rev.Astron.Astrophys.44:17-47,2006, 2006
Pulsars steadily dissipate their rotational energy via relativistic winds. Confinement of these outflows generates luminous pulsar wind nebulae, seen across the electromagnetic spectrum in synchrotron and inverse Compton emission, and in optical emission lines when they shock the surrounding medium. These sources act as important probes of relativistic
Bryan Gaensler, Patrick Slane
arxiv   +5 more sources