Modelling of Shock-Accelerated Gamma-Ray Events

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dc.contributor.authorAlexandr Afanasiev
dc.contributor.authorAngels Aran
dc.contributor.authorRami Vainio
dc.contributor.authorAlexis Rouillard
dc.contributor.authorPietro Zucca
dc.contributor.authorDavid Lario
dc.contributor.authorSuvi Barcewicz
dc.contributor.authorRobert Siipola
dc.contributor.authorJens Pomoell
dc.contributor.authorBlai Sanahuja
dc.contributor.authorOlga E. Malandraki
dc.contributor.organizationfi=avaruustutkimuslaboratorio|en=Space Research Laboratory|
dc.contributor.organization-code1.2.246.10.2458963.20.47833719389
dc.contributor.organization-code2606702
dc.converis.publication-id36943416
dc.converis.urlhttps://research.utu.fi/converis/portal/Publication/36943416
dc.date.accessioned2022-10-28T13:22:12Z
dc.date.available2022-10-28T13:22:12Z
dc.description.abstract<p>Solar <em>γ</em>-ray events recently detected by the <em>Fermi</em>/LAT instrument at energies above 100 MeV have presented a puzzle for solar physicists as many of such events were observed lasting for many hours after the associated flare/coronal mass ejection (CME) eruption. Data analyses suggest the <em>γ</em>-ray emission originate from decay of pions produced mainly by interactions of high-energy protons deep in the chromosphere. Whether those protons are accelerated in the associated flare or in the CME-driven shock has been under active discussion. In this chapter, we present some modelling efforts aimed at testing the shock acceleration hypothesis. We address two <em>γ</em>-ray events: 2012 January 23 and 2012 May 17 and approach the problem by, first, simulating the proton acceleration at the shock and, second, simulating their transport back to the Sun.<br /></p>
dc.format.pagerange157
dc.format.pagerange177
dc.identifier.eisbn978-3-319-60051-2
dc.identifier.isbn978-3-319-60050-5
dc.identifier.issn0067-0057
dc.identifier.olddbid181591
dc.identifier.oldhandle10024/164685
dc.identifier.urihttps://www.utupub.fi/handle/11111/38646
dc.identifier.urlhttps://link.springer.com/chapter/10.1007/978-3-319-60051-2_9
dc.identifier.urnURN:NBN:fi-fe2021042720267
dc.language.isoen
dc.okm.affiliatedauthorAfanasiev, Alexandr
dc.okm.affiliatedauthorVainio, Rami
dc.okm.affiliatedauthorBarcewicz, Suvi
dc.okm.affiliatedauthorSiipola, Robert
dc.okm.discipline115 Astronomy and space scienceen_GB
dc.okm.discipline115 Avaruustieteet ja tähtitiedefi_FI
dc.okm.internationalcopublicationinternational co-publication
dc.okm.internationalityInternational publication
dc.okm.typeA3 Book
dc.publisherSpringer
dc.publisher.isbn978-81-322;978-3-540;978-3-642;978-3-662;978-3-7908;978-3-8274;978-3-8347;978-90-481;978-94-007;978-94-009;978-94-010;978-94-011;978-94-015;978-94-017;978-94-024;978-0-387;978-0-8176;978-1-4419;978-1-4612;978-1-4613;978-1-4614;978-1-4615;978-1-4684;978-1-4757;978-1-4899;978-1-4939;978-1-5041;978-3-319;978-1-4020;978-0-85729;978-1-4471;978-1-84628;978-1-84800;978-1-84882;978-1-84996;978-1-85233;978-3-211;978-3-7091;978-4-431;978-3-322;978-3-409;978-3-531;978-3-658;978-3-663;978-3-8100;978-981-287;978-981-10;978-981-13;978-3-030;978-981-32;978-981-15;978-981-16;978-981-329;978-981-334;978-981-336;978-3-031;978-981-19;
dc.relation.doi10.1007/978-3-319-60051-2_9
dc.relation.ispartofseriesAstrophysics and Space Science Library
dc.relation.volume444
dc.source.identifierhttps://www.utupub.fi/handle/10024/164685
dc.titleModelling of Shock-Accelerated Gamma-Ray Events
dc.title.bookSolar Particle Radiation Storms Forecasting and Analysis: The HESPERIA HORIZON 2020 Project and Beyond
dc.year.issued2018

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