Analysis and modeling of the dynamics of the glow of calcium and hydrogen lines in solar and stellar flares

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F21%3A00552237" target="_blank" >RIV/67985815:_____/21:00552237 - isvavai.cz</a>

Výsledek na webu

<a href="http://hdl.handle.net/11104/0327371" target="_blank" >http://hdl.handle.net/11104/0327371</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1515/astro-2021-0011" target="_blank" >10.1515/astro-2021-0011</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Analysis and modeling of the dynamics of the glow of calcium and hydrogen lines in solar and stellar flares

Popis výsledku v původním jazyce

We present intensity curves of solar flares obtained in the H alpha hydrogen line and CaII H, CaIR 8542 angstrom lines using multichannel spectrographs of Ondrejov Observatory (Czech Republic) for the period 2000-2012. The general behavior of observed intensity curves is practically the same for all flares and is consistent with temporal variations of X-ray emission. However, our results differ significantly from those obtained by other authors for selected flare stars, for example, AD Leo, EV Lac, YZ CMi . We tried to explain the difference in the behavior of Ca II and H alpha radiation flux by appearance of a shock wave during a flare and slow heating of the plasma.

Název v anglickém jazyce

Analysis and modeling of the dynamics of the glow of calcium and hydrogen lines in solar and stellar flares

Popis výsledku anglicky

We present intensity curves of solar flares obtained in the H alpha hydrogen line and CaII H, CaIR 8542 angstrom lines using multichannel spectrographs of Ondrejov Observatory (Czech Republic) for the period 2000-2012. The general behavior of observed intensity curves is practically the same for all flares and is consistent with temporal variations of X-ray emission. However, our results differ significantly from those obtained by other authors for selected flare stars, for example, AD Leo, EV Lac, YZ CMi . We tried to explain the difference in the behavior of Ca II and H alpha radiation flux by appearance of a shock wave during a flare and slow heating of the plasma.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Open Astronomy

ISSN

2543-6376

e-ISSN

2543-6376

Svazek periodika

30

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

PL - Polská republika

Počet stran výsledku

4

Strana od-do

91

Kód UT WoS článku

000731524700001

EID výsledku v databázi Scopus

2-s2.0-85122697547