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@ARTICLE{Aharonian:596657,
author = {Aharonian, F. and Ait Benkhali, F. and Aschersleben, J. and
Ashkar, H. and Backes, M. and Barbosa Martins, V. and
Batzofin, R. and Becherini, Y. and Berge, D. and Bernlöhr,
K. and Bi, B. and Böttcher, M. and Boisson, C. and Bolmont,
J. and de Bony de Lavergne, M. and Borowska, J. and
Bradascio, F. and Breuhaus, M. and Brose, R. and Brun, F.
and Bruno, B. and Bulik, T. and Burger-Scheidlin, C. and
Bylund, T. and Cangemi, F. and Caroff, S. and Casanova, S.
and Celic, J. and Cerruti, M. and Chand, T. and Chandra, S.
and Chen, A. and Chibueze, O. and Cotter, G. and Damascene
Mbarubucyeye, J. and Djannati-Atai, A. and Dmytriiev, A. and
Egberts, K. and Ernenwein, J.-P. and Feijen, K. and Fiasson,
A. and Fichet de Clairfontaine, G. and Fontaine, G. and
Füßling, M. and Funk, S. and Gabici, S. and Gallant, Y. A.
and Ghafourizadeh, S. and Giavitto, G. and Giunti, L. and
Glawion, D. and Glicenstein, J. F. and Goswami, P. and
Grolleron, G. and Grondin, M.-H. and Haerer, L. and Haupt,
M. and Hinton, J. A. and Hofmann, W. and Holch, T. L. and
Holler, M. and Horns, D. and Huang, Zhiqiu and Jamrozy, M.
and Jankowsky, F. and Joshi, V. and Jung-Richardt, I. and
Kasai, E. and Katarzynski, K. and Khélifi, B. and Klepser,
S. and Klúzniak, W. and Komin, Nu. and Kosack, K. and
Kostunin, D. and Lang, R. G. and Le Stum, S. and Lemière,
A. and Lemoine-Goumard, M. and Lenain, J.-P. and Leuschner,
F. and Lohse, T. and Luashvili, A. and Lypova, I. and
Mackey, J. and Malyshev, D. and Malyshev, D. and Marandon,
V. and Marchegiani, P. and Marcowith, A. and Marinos, P. and
Martí-Devesa, G. and Marx, R. and Maurin, G. and Meyer, M.
and Mitchell, A. and Moderski, R. and Mohrmann, L. and
Montanari, A. and Moulin, E. and Muller, J. and Murach, T.
and Nakashima, K. and de Naurois, M. and Niemiec, J. and
Noel, A. Priyana and O'Brien, P. and Ohm, S. and
Olivera-Nieto, L. and de Ona Wilhelmi, E. and Ostrowski, M.
and Panny, S. and Panter, M. and Parsons, R. D. and Peron,
G. and Pita, S. and Prokhorov, D. A. and Prokoph, H. and
Pühlhofer, G. and Punch, M. and Quirrenbach, A. and
Reichherzer, P. and Reimer, A. and Reimer, O. and Renaud, M.
and Rieger, F. and Rowell, G. and Rudak, B. and
Ruiz-Velasco, E. and Sahakian, V. and Sailer, S. and
Salzmann, H. and Sanchez, D. A. and Santangelo, A. and
Sasaki, M. and Schüssler, F. and Schwanke, U. and Shapopi,
J. N. S. and Sinha, A. and Sol, H. and Specovius, A. and
Spencer, S. and Spir-Jacob, M. and Stawarz, L. and
Steenkamp, R. and Steinmassl, S. and Steppa, C. and Sushch,
I. and Suzuki, H. and Takahashi, T. and Tanaka, T. and
Tavernier, T. and Terrier, R. and Thorpe-Morgan, C. and
Tluczykont, M. and Tsirou, M. and Tsuji, N. and van Eldik,
C. and Vecchi, M. and Veh, J. and Venter, C. and Vink, J.
and Wagner, S. J. and Werner, F. and White, R. and
Wierzcholska, A. and Wong, Yu Wun and Yassin, H. and
Zacharias, M. and Zargaryan, D. and Zdziarski, A. A. and
Zech, A. and Zhu, S. J. and Zouari, S. and Zywucka, N. and
Zanin, R. and Kerr, M. and Johnston, S. and Shannon, R. M.
and Smith, D. A.},
collaboration = {H. E. S. S.{ Collaboration}},
title = {{D}iscovery of a {R}adiation {C}omponent from the {V}ela
{P}ulsar {R}eaching 20 {T}eraelectronvolts},
reportid = {PUBDB-2023-06203, arXiv:2310.06181},
year = {2023},
note = {38 pages, 6 figures. This preprint has not undergone peer
review or any post-submission improvements or corrections.
The Version of Record of this article is published in Nature
Astronomy, Nat Astron (2023), and is available online at
https://doi.org/10.1038/s41550-023-02052-3},
abstract = {Gamma-ray observations have established energetic isolated
pulsars as outstanding particle accelerators and antimatter
factories in the Galaxy. There is, however, no consensus
regarding the acceleration mechanisms and the radiative
processes at play, nor the locations where these take place.
The spectra of all observed gamma-ray pulsars to date show
strong cutoffs or a break above energies of a few
gigaelectronvolt (GeV). Using the H.E.S.S. array of
Cherenkov telescopes, we discovered a novel radiation
component emerging beyond this generic GeV cutoff in the
Vela pulsar's broadband spectrum. The extension of gamma-ray
pulsation energies up to at least 20 teraelectronvolts (TeV)
shows that Vela pulsar can accelerate particles to Lorentz
factors higher than $4\times10^7$. This is an order of
magnitude larger than in the case of the Crab pulsar, the
only other pulsar detected in the TeV energy range. Our
results challenge the state-of-the-art models for
high-energy emission of pulsars while providing a new probe,
i.e. the energetic multi-TeV component, for constraining the
acceleration and emission processes in their extreme energy
limit.},
keywords = {pulsar, emission (INSPIRE) / antimatter, particle source
(INSPIRE) / gamma ray (INSPIRE) / acceleration (INSPIRE) /
GeV (INSPIRE) / TeV (INSPIRE) / accelerator (INSPIRE) /
Cherenkov counter (INSPIRE) / Lorentz (INSPIRE) / galaxy
(INSPIRE) / HESS (INSPIRE)},
cin = {$Z_HESS$},
ddc = {520},
cid = {$I:(DE-H253)Z_HESS-20210408$},
pnm = {613 - Matter and Radiation from the Universe (POF4-613)},
pid = {G:(DE-HGF)POF4-613},
experiment = {EXP:(DE-H253)HESS-20170101},
typ = {PUB:(DE-HGF)25},
eprint = {2310.06181},
howpublished = {arXiv:2310.06181},
archivePrefix = {arXiv},
SLACcitation = {$\%\%CITATION$ = $arXiv:2310.06181;\%\%$},
url = {https://bib-pubdb1.desy.de/record/596657},
}
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