| Title: | Proton acceleration in thermonuclear nova explosions revealed by gamma rays |
Authors: | Acciari, V. A.
Ansoldi, S.
ANTONELLI, Lucio Angelo
Arbet Engels, A.
Artero, M.
Asano, K.
Baack, D.
Babić, A.
Baquero, A.
Barres de Almeida, U.
Barrio, J. A.
López-Coto, R.
López-Moya, M.
López-Oramas, A.
Loporchio, S.
Machado de Oliveira Fraga, B.
Maggio, C.
Majumdar, P.
Makariev, M.
Mallamaci, M.
Maneva, G.
Batković, I.
Manganaro, M.
Mannheim, K.
Maraschi, L.
Mariotti, M.
Martínez, M.
Mas Aguilar, A.
Mazin, D.
Menchiari, S.
Mender, S.
Mićanović, S.
Becerra González, J.
Miceli, D.
Miener, T.
Miranda, J. M.
Mirzoyan, R.
Molina, E.
Moralejo, A.
Morcuende, D.
Moreno, V.
Moretti, E.
Nakamori, T.
Bednarek, W.
NAVA, Lara
Neustroev, V.
Nievas Rosillo, M.
Nigro, C.
Nilsson, K.
Nishijima, K.
Noda, K.
Nozaki, S.
Ohtani, Y.
Oka, T.
Bellizzi, L.
Otero-Santos, J.
PAIANO, Simona
Palatiello, M.
Paneque, D.
Paoletti, R.
Paredes, J. M.
Pavletić, L.
Peñil, P.
PERSIC, Massimo
Pihet, M.
Bernardini, E.
Prada Moroni, P. G.
PRANDINI, ELISA
Priyadarshi, C.
Puljak, I.
Rhode, W.
Ribó, M.
Rico, J.
RIGHI, Chiara
Rugliancich, A.
Sahakyan, N.
Bernardos, M.
Saito, T.
Sakurai, S.
Satalecka, K.
SATURNI, Francesco Gabriele
Schleicher, B.
Schmidt, K.
Schweizer, T.
Sitarek, J.
Šnidarić, I.
Sobczynska, D.
Berti, A.
Spolon, A.
STAMERRA, Antonio
Strišković, J.
Strom, D.
Strzys, M.
Suda, Y.
Surić, T.
Takahashi, M.
Takeishi, R.
TAVECCHIO, Fabrizio
Besenrieder, J.
Temnikov, P.
Terzić, T.
Teshima, M.
Tosti, L.
Truzzi, S.
TUTONE, Antonio
Ubach, S.
van Scherpenberg, J.
Vanzo, G.
Vazquez Acosta, M.
Bhattacharyya, W.
Ventura, S.
Verguilov, V.
Vigorito, C. F.
Vitale, V.
Vovk, I.
Will, M.
Wunderlich, C.
Yamamoto, T.
Zarić, D.
AMBROSINO, Filippo
BIGONGIARI, Ciro
Cecconi, M.
CATANZARO, Giovanni
Ferrara, C.
FRASCA, Antonio
MUNARI, MATTEO
Giustolisi, L.
ALONSO SANTIAGO, Javier
Giarrusso, M.
MUNARI, Ulisse
Valisa, P.
Biland, A.
Blanch, O.
Bökenkamp, H.
BONNOLI, Giacomo
Bošnjak, Ž.
Busetto, G.
Carosi, R.
Ceribella, G.
Cerruti, M.
Chai, Y.
Chilingarian, A.
Cikota, S.
Colak, S. M.
Colombo, E.
Contreras, J. L.
Cortina, J.
COVINO, Stefano
D'Amico, G.
D'Elia, V.
Da Vela, P.
Dazzi, F.
De Angelis, A.
De Lotto, B.
Del Popolo, A.
Delfino, M.
Delgado, J.
Delgado Mendez, C.
Depaoli, D.
Di Pierro, F.
Di Venere, L.
Do Souto Espiñeira, E.
Prester, D. Dominis
Donini, A.
Dorner, D.
Doro, M.
Elsaesser, D.
Fallah Ramazani, V.
Fariña Alonso, L.
Fattorini, A.
Fonseca, M. V.
Font, L.
Fruck, C.
Fukami, S.
Fukazawa, Y.
García López, R. J.
Garczarczyk, M.
Gasparyan, S.
Gaug, M.
Giglietto, N.
Giordano, F.
Gliwny, P.
Godinović, N.
GREEN, JARRED GERSHON
Green, D.
Hadasch, D.
Hahn, A.
Hassan, T.
Heckmann, L.
Herrera, J.
Hoang, J.
Hrupec, D.
Hütten, M.
Inada, T.
Ishio, K.
Iwamura, Y.
Jiménez Martínez, I.
Jormanainen, J.
Jouvin, L.
Kerszberg, D.
Kobayashi, Y.
Kubo, H.
Kushida, J.
LAMASTRA, Alessandra
Lelas, D.
LEONE, Francesco
Lindfors, E.
Linhoff, L.
LOMBARDI, Saverio
Longo, F. |
Issue Date: | 2022 |
Journal: | NATURE ASTRONOMY |
Number: | 6 |
Issue: | 6 |
First Page: | 689 |
Abstract: | Classical novae are cataclysmic binary star systems in which the matter of a companion star is accreted on a white dwarf<SUP>1,2</SUP>. Accumulation of hydrogen in a layer eventually causes a thermonuclear explosion on the surface of the white dwarf<SUP>3</SUP>, brightening the white dwarf to ~10<SUP>5</SUP> solar luminosities and triggering ejection of the accumulated matter. Novae provide the extreme conditions required to accelerate particles, electrons or protons, to high energies. Here we present the detection of gamma rays by the MAGIC telescopes from the 2021 outburst of RS Ophiuchi, a recurrent nova with a red giant companion, which allowed us to accurately characterize the emission from a nova in the 60 GeV to 250 GeV energy range. The theoretical interpretation of the combined Fermi LAT and MAGIC data suggests that protons are accelerated to hundreds of gigaelectronvolts in the nova shock. Such protons should create bubbles of enhanced cosmic ray density, of the order of 10 pc, from the recurrent novae. |
URI: | http://hdl.handle.net/20.500.12386/35922 |
URL: | https://www.nature.com/articles/s41550-022-01640-z
https://api.elsevier.com/content/abstract/scopus_id/85128070325 |
ISSN: | 2397-3366 |
DOI: | 10.1038/s41550-022-01640-z |
Bibcode ADS: | 2022NatAs...6..689A |
Fulltext: | open |
| Appears in Collections: | 1.01 Articoli in rivista
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