About: Kappa distribution and hard X-ray emission of solar flares

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We investigate whether the so-called kappa distribution, often used to fit electron distributions detected in situ in the solar wind, can describe electrons producing the hard X-ray emission in solar flares. Using Ramaty High Energy Solar Spectroscopic imager (RHESSI) flare data we fit spatially- and feature-integrated spectra, assuming a kappa distribution for the mean electron flux spectrum. We show that a single kappa distribution generally cannot describe spatially integrated X-ray emission composed of both footpoint and coronal sources. In contrast, the kappa distribution is consistent with mean electron spectra producing hard X-ray emission in some coronal sources. Klíčová slova: solar flares, solar X-rays, data analysis. We investigate whether the so-called kappa distribution, often used to fit electron distributions detected in situ in the solar wind, can describe electrons producing the hard X-ray emission in solar flares. Using Ramaty High Energy Solar Spectroscopic imager (RHESSI) flare data we fit spatially- and feature-integrated spectra, assuming a kappa distribution for the mean electron flux spectrum. We show that a single kappa distribution generally cannot describe spatially integrated X-ray emission composed of both footpoint and coronal sources. In contrast, the kappa distribution is consistent with mean electron spectra producing hard X-ray emission in some coronal sources. Klíčová slova: solar flares, solar X-rays, data analysis. (en)
Title	Kappa distribution and hard X-ray emission of solar flares Kappa distribution and hard X-ray emission of solar flares (en)
skos:prefLabel	Kappa distribution and hard X-ray emission of solar flares Kappa distribution and hard X-ray emission of solar flares (en)
skos:notation	RIV/67985815:_____/09:00334859!RIV10-AV0-67985815
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA205/09/1705), P(GP205/06/P135), P(IAA300030701), Z(AV0Z10030501)
http://linked.open...iv/cisloPeriodika	3
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Karlický, Marian Kašparová, Jana
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Astronomický ústav AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	321485
http://linked.open...ai/riv/idVysledku	RIV/67985815:_____/09:00334859
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	solar flares; X-rays; gamma rays (en)
http://linked.open.../riv/klicoveSlovo	solar flares gamma rays X-rays
http://linked.open...odStatuVydavatele	FR - Francouzská republika
http://linked.open...ontrolniKodProRIV	[651F9E8A8140]
http://linked.open...i/riv/nazevZdroje	Astronomy and Astrophysics
http://linked.open...in/vavai/riv/obor	BN
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Diagnostics of the non-thermal electron distributions in the solar korona Particle beams in solar flares Radio and X-ray diagnostics of the solar flare magnetic reconnection
http://linked.open...UplatneniVysledku	2009
http://linked.open...v/svazekPeriodika	497
http://linked.open...iv/tvurceVysledku	Karlický, Marian Kašparová, Jana
http://linked.open...ain/vavai/riv/wos	000265280500001
http://linked.open...n/vavai/riv/zamer	Astronomie a astrofyzika
issn	0004-6361
number of pages	4 (xsd:int)

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