Discovery of a radiation component from the Vela pulsar reaching 20 teraelectronvolts

The H.E.S.S. Collaboration et al.

doi:10.1038/s41550-023-02052-3

Discovery of a radiation component from the Vela pulsar reaching 20 teraelectronvolts

The H.E.S.S. Collaboration et al.

Dublin Institute for Advanced Studies
Max-Planck-Institut für Kernphysik
Yerevan State University
Landessternwarte Heidelberg
University of Amsterdam
University of Namibia
North-West University
c/o DESY
University of the Witwatersrand, Johannesburg
Astroparticule and Cosmol APC
Linnaeus University, Växjö
Humboldt-Universität zu Berlin
University of Tübingen
LUTH - Laboratoire de l'Univers et de ses Theories
Sorbonne Université
Université Savoie Mont Blanc
Université Paris-Saclay
Friedrich-Alexander University (FAU) Erlangen-Nürnberg and Universitätsklinikum Erlangen
University of Warsaw
Institute for Nuclear Physics
University of Oxford
University of Potsdam
Aix-Marseille Université
University of Adelaide
Ip Paris
Laboratoire Univers et Particules de Montpellier
UMR 5797
University of Innsbruck
Universität Hamburg
Jagiellonian University
Nicolaus Copernicus University
Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences
University of Leicester
Yerevan Physics Institute
Konan University
University of Tokyo
Riken
Cherenkov Telescope Array Observatory gGmbH
Naval Research Laboratory
Commonwealth Scientific and Industrial Research Organization
Swinburne University of Technology
ARC Centre of Excellence for Gravitational Wave Discovery
Laboratoire d'Astrophysique de Bordeaux

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

Résumé

Gamma-ray observations have established energetic isolated pulsars as outstanding particle accelerators and antimatter factories. However, many questions are still open regarding the acceleration and radiation processes involved, as well as the locations where they occur. The radiation spectra of all gamma-ray pulsars observed to date show strong cutoffs or a break above energies of a few gigaelectronvolts. Using the High Energy Stereoscopic System’s Cherenkov telescopes, we discovered a radiation component from the Vela pulsar which emerges beyond this generic cutoff and extends up to energies of at least 20 teraelectronvolts. This is an order of magnitude larger than in the case of the Crab pulsar, the only other pulsar detected in the teraelectronvolt energy range. Our results challenge the state-of-the-art models for the high-energy emission of pulsars. Furthermore, they pave the way for investigating other pulsars through their multiteraelectronvolt emission, thereby imposing additional constraints on the acceleration and emission processes in their extreme energy limit.

langue originale	Anglais
Pages (de - à)	1341-1350
Nombre de pages	10
journal	Nature Astronomy
Volume	7
Numéro de publication	11
Les DOIs	https://doi.org/10.1038/s41550-023-02052-3
état	Publié - 1 nov. 2023

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10.1038/s41550-023-02052-3

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@article{615bbeac65ac4bd7ac0e885cfe40cdbc,

title = "Discovery of a radiation component from the Vela pulsar reaching 20 teraelectronvolts",

abstract = "Gamma-ray observations have established energetic isolated pulsars as outstanding particle accelerators and antimatter factories. However, many questions are still open regarding the acceleration and radiation processes involved, as well as the locations where they occur. The radiation spectra of all gamma-ray pulsars observed to date show strong cutoffs or a break above energies of a few gigaelectronvolts. Using the High Energy Stereoscopic System{\textquoteright}s Cherenkov telescopes, we discovered a radiation component from the Vela pulsar which emerges beyond this generic cutoff and extends up to energies of at least 20 teraelectronvolts. This is an order of magnitude larger than in the case of the Crab pulsar, the only other pulsar detected in the teraelectronvolt energy range. Our results challenge the state-of-the-art models for the high-energy emission of pulsars. Furthermore, they pave the way for investigating other pulsars through their multiteraelectronvolt emission, thereby imposing additional constraints on the acceleration and emission processes in their extreme energy limit.",

author = "\{The H.E.S.S. Collaboration et al.\} and F. Aharonian and Benkhali, \{F. Ait\} and J. Aschersleben and H. Ashkar and M. Backes and Martins, \{V. Barbosa\} and R. Batzofin and Y. Becherini and D. Berge and K. Bernl{\"o}hr and B. Bi and M. B{\"o}ttcher and C. Boisson and J. Bolmont and \{de Bony de Lavergne\}, M. and J. Borowska and F. Bradascio and M. Breuhaus and R. Brose and F. Brun and B. Bruno and T. Bulik and C. Burger-Scheidlin and T. Bylund and F. Cangemi and S. Caroff and S. Casanova and J. Celic and M. Cerruti and T. Chand and S. Chandra and A. Chen and O. Chibueze and G. Cotter and Mbarubucyeye, \{J. Damascene\} and A. Djannati-Ata{\"i} and A. Dmytriiev and K. Egberts and Ernenwein, \{J. P.\} and K. Feijen and A. Fiasson and \{Fichet de Clairfontaine\}, G. and G. Fontaine and M. F{\"u}{\ss}ling and S. Funk and S. Gabici and Gallant, \{Y. A.\} and S. Ghafourizadeh and G. Giavitto and L. Giunti",

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doi = "10.1038/s41550-023-02052-3",

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AU - The H.E.S.S. Collaboration et al.

AU - Aharonian, F.

AU - Benkhali, F. Ait

AU - Aschersleben, J.

AU - Ashkar, H.

AU - Backes, M.

AU - Martins, V. Barbosa

AU - Batzofin, R.

AU - Becherini, Y.

AU - Berge, D.

AU - Bernlöhr, K.

AU - Bi, B.

AU - Böttcher, M.

AU - Boisson, C.

AU - Bolmont, J.

AU - de Bony de Lavergne, M.

AU - Borowska, J.

AU - Bradascio, F.

AU - Breuhaus, M.

AU - Brose, R.

AU - Brun, F.

AU - Bruno, B.

AU - Bulik, T.

AU - Burger-Scheidlin, C.

AU - Bylund, T.

AU - Cangemi, F.

AU - Caroff, S.

AU - Casanova, S.

AU - Celic, J.

AU - Cerruti, M.

AU - Chand, T.

AU - Chandra, S.

AU - Chen, A.

AU - Chibueze, O.

AU - Cotter, G.

AU - Mbarubucyeye, J. Damascene

AU - Djannati-Ataï, A.

AU - Dmytriiev, A.

AU - Egberts, K.

AU - Ernenwein, J. P.

AU - Feijen, K.

AU - Fiasson, A.

AU - Fichet de Clairfontaine, G.

AU - Fontaine, G.

AU - Füßling, M.

AU - Funk, S.

AU - Gabici, S.

AU - Gallant, Y. A.

AU - Ghafourizadeh, S.

AU - Giavitto, G.

AU - Giunti, L.

PY - 2023/11/1

Y1 - 2023/11/1

N2 - Gamma-ray observations have established energetic isolated pulsars as outstanding particle accelerators and antimatter factories. However, many questions are still open regarding the acceleration and radiation processes involved, as well as the locations where they occur. The radiation spectra of all gamma-ray pulsars observed to date show strong cutoffs or a break above energies of a few gigaelectronvolts. Using the High Energy Stereoscopic System’s Cherenkov telescopes, we discovered a radiation component from the Vela pulsar which emerges beyond this generic cutoff and extends up to energies of at least 20 teraelectronvolts. This is an order of magnitude larger than in the case of the Crab pulsar, the only other pulsar detected in the teraelectronvolt energy range. Our results challenge the state-of-the-art models for the high-energy emission of pulsars. Furthermore, they pave the way for investigating other pulsars through their multiteraelectronvolt emission, thereby imposing additional constraints on the acceleration and emission processes in their extreme energy limit.

AB - Gamma-ray observations have established energetic isolated pulsars as outstanding particle accelerators and antimatter factories. However, many questions are still open regarding the acceleration and radiation processes involved, as well as the locations where they occur. The radiation spectra of all gamma-ray pulsars observed to date show strong cutoffs or a break above energies of a few gigaelectronvolts. Using the High Energy Stereoscopic System’s Cherenkov telescopes, we discovered a radiation component from the Vela pulsar which emerges beyond this generic cutoff and extends up to energies of at least 20 teraelectronvolts. This is an order of magnitude larger than in the case of the Crab pulsar, the only other pulsar detected in the teraelectronvolt energy range. Our results challenge the state-of-the-art models for the high-energy emission of pulsars. Furthermore, they pave the way for investigating other pulsars through their multiteraelectronvolt emission, thereby imposing additional constraints on the acceleration and emission processes in their extreme energy limit.

UR - https://www.scopus.com/pages/publications/85173933154

U2 - 10.1038/s41550-023-02052-3

DO - 10.1038/s41550-023-02052-3

M3 - Article

AN - SCOPUS:85173933154

SN - 2397-3366

VL - 7

SP - 1341

EP - 1350

JO - Nature Astronomy

JF - Nature Astronomy

IS - 11

ER -

Discovery of a radiation component from the Vela pulsar reaching 20 teraelectronvolts

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