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Statements

Subject Item
n2:RIV%2F67985815%3A_____%2F14%3A00435318%21RIV15-GA0-67985815
rdf:type
n8:Vysledek skos:Concept
dcterms:description
We investigate the possibility of diagnosing the degree of departure from the Maxwellian distribution using single-ion spectra originating in astrophysical plasmas in collisional ionization equilibrium. We find that it is possible to perform density diagnostics independently of kappa, with many Fe xi, Fe xii, and Fe xiii line ratios showing strong density-sensitivity and negligible sensitivity to kappa and temperature. We also tested different averaging of the collision strengths. It is found that averaging over 0.01 interval in log(E [ Ryd ]) is sufficient to produce accurate distribution-averaged collision strengths Upsilon(T,kappa) at temperatures of the ion formation in ionization equilibrium. We investigate the possibility of diagnosing the degree of departure from the Maxwellian distribution using single-ion spectra originating in astrophysical plasmas in collisional ionization equilibrium. We find that it is possible to perform density diagnostics independently of kappa, with many Fe xi, Fe xii, and Fe xiii line ratios showing strong density-sensitivity and negligible sensitivity to kappa and temperature. We also tested different averaging of the collision strengths. It is found that averaging over 0.01 interval in log(E [ Ryd ]) is sufficient to produce accurate distribution-averaged collision strengths Upsilon(T,kappa) at temperatures of the ion formation in ionization equilibrium.
dcterms:title
Signatures of the non-Maxwellian κ-distributions in optically thin line spectra I. Theory and synthetic Fe IX–XIII spectra Signatures of the non-Maxwellian κ-distributions in optically thin line spectra I. Theory and synthetic Fe IX–XIII spectra
skos:prefLabel
Signatures of the non-Maxwellian κ-distributions in optically thin line spectra I. Theory and synthetic Fe IX–XIII spectra Signatures of the non-Maxwellian κ-distributions in optically thin line spectra I. Theory and synthetic Fe IX–XIII spectra
skos:notation
RIV/67985815:_____/14:00435318!RIV15-GA0-67985815
n3:aktivita
n17:P n17:I
n3:aktivity
I, P(GAP209/12/1652)
n3:cisloPeriodika
October
n3:dodaniDat
n14:2015
n3:domaciTvurceVysledku
n6:3166821
n3:druhVysledku
n18:J
n3:duvernostUdaju
n13:S
n3:entitaPredkladatele
n15:predkladatel
n3:idSjednocenehoVysledku
44807
n3:idVysledku
RIV/67985815:_____/14:00435318
n3:jazykVysledku
n5:eng
n3:klicovaSlova
Sun: UV radiation; X-rays; gamma rays
n3:klicoveSlovo
n10:gamma%20rays n10:Sun%3A%20UV%20radiation n10:X-rays
n3:kodStatuVydavatele
FR - Francouzská republika
n3:kontrolniKodProRIV
[5EE574D49F2D]
n3:nazevZdroje
Astronomy & Astrophysics
n3:obor
n12:BN
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
4
n3:projekt
n11:GAP209%2F12%2F1652
n3:rokUplatneniVysledku
n14:2014
n3:svazekPeriodika
570
n3:tvurceVysledku
Del Zanna, G. Dzifčáková, Elena Mason, H. E. Dudík, J.
n3:wos
000344158500074
s:issn
0004-6361
s:numberOfPages
23
n16:doi
10.1051/0004-6361/201424124