Shock-drift accelerated electrons and n-distribution

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F16%3A00463131" target="_blank" >RIV/67985815:_____/16:00463131 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1051/0004-6361/201527183" target="_blank" >http://dx.doi.org/10.1051/0004-6361/201527183</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/0004-6361/201527183" target="_blank" >10.1051/0004-6361/201527183</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Shock-drift accelerated electrons and n-distribution

Popis výsledku v původním jazyce

By analyzing soft X-ray spectra observed during the impulsive phase of several solar flares, the n-distribution function of superthermal electrons has been detected. In the paper we try to answer the question of whether electrons with this type of distribution function can be produced in a shock, e.g. in a flare termination shock. We use analytical and numerical methods to compute distribution functions of electrons accelerated by a shock. We analytically derive the distribution functions of reflected electrons at quasi-perpendicular shocks. We also consider the influence of the electrostatic cross-shock potential, shock curvature, and the role of the upstream seed population on these distributions. The computed distributions are compared with the n-distributions. We found that a high-energy part of the distribution of electrons reflected at a quasi-perpendicular shock can be very well fitted by the n-distribution in all the cases we studied. This provides a chance to detect the flare termination shock.

Název v anglickém jazyce

Shock-drift accelerated electrons and n-distribution

Popis výsledku anglicky

By analyzing soft X-ray spectra observed during the impulsive phase of several solar flares, the n-distribution function of superthermal electrons has been detected. In the paper we try to answer the question of whether electrons with this type of distribution function can be produced in a shock, e.g. in a flare termination shock. We use analytical and numerical methods to compute distribution functions of electrons accelerated by a shock. We analytically derive the distribution functions of reflected electrons at quasi-perpendicular shocks. We also consider the influence of the electrostatic cross-shock potential, shock curvature, and the role of the upstream seed population on these distributions. The computed distributions are compared with the n-distributions. We found that a high-energy part of the distribution of electrons reflected at a quasi-perpendicular shock can be very well fitted by the n-distribution in all the cases we studied. This provides a chance to detect the flare termination shock.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Astronomy & Astrophysics

ISSN

1432-0746

e-ISSN

—

Svazek periodika

591

Číslo periodika v rámci svazku

July

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

6

Strana od-do

"A127/1"-"A127/6"

Kód UT WoS článku

000379141300136

EID výsledku v databázi Scopus

2-s2.0-84977110680