Radio continua modulated by waves: Zebra patterns in solar and pulsar radio spectra?n in the 2001 June 15 flare

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F13%3A00399168" target="_blank" >RIV/67985815:_____/13:00399168 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1051/0004-6361/201321356" target="_blank" >http://dx.doi.org/10.1051/0004-6361/201321356</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/0004-6361/201321356" target="_blank" >10.1051/0004-6361/201321356</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Radio continua modulated by waves: Zebra patterns in solar and pulsar radio spectra?n in the 2001 June 15 flare

Popis výsledku v původním jazyce

We aim to answer the question how waves with plasma density variations affect the radio continua generated by the plasma emission mechanism. We built a simple semi-empirical model of the radio continuum modulation. Assuming that the waves with density variations are in the source of this radio continuum, we modeled the artificial radio spectrum, which we compared with observed spectra. We show that the waves with density variations modulate the radio continua generated by the plasma emission mechanism.Considering a single slow magnetoacoustic wave, we model the radio spectra, which resemble solar zebra patterns. We show that this modulation generates zebra effects even when the radio continuum is composed of many spiky bursts. Generalizing from one single wave to a wave turbulence we find that the computed radio spectrum is similar to so-called lace bursts. Finally, using the same procedure, but for fast magnetoacoustic waves, we modeled the radio spectrum similar to that observed dur

Název v anglickém jazyce

Radio continua modulated by waves: Zebra patterns in solar and pulsar radio spectra?n in the 2001 June 15 flare

Popis výsledku anglicky

We aim to answer the question how waves with plasma density variations affect the radio continua generated by the plasma emission mechanism. We built a simple semi-empirical model of the radio continuum modulation. Assuming that the waves with density variations are in the source of this radio continuum, we modeled the artificial radio spectrum, which we compared with observed spectra. We show that the waves with density variations modulate the radio continua generated by the plasma emission mechanism.Considering a single slow magnetoacoustic wave, we model the radio spectra, which resemble solar zebra patterns. We show that this modulation generates zebra effects even when the radio continuum is composed of many spiky bursts. Generalizing from one single wave to a wave turbulence we find that the computed radio spectrum is similar to so-called lace bursts. Finally, using the same procedure, but for fast magnetoacoustic waves, we modeled the radio spectrum similar to that observed dur

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BN - Astronomie a nebeská mechanika, astrofyzika

OECD FORD obor

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Projekt

<a href="/cs/project/GAP209%2F12%2F0103" target="_blank" >GAP209/12/0103: Rádiová a rentgenová diagnostika procesů primárního uvolňování energie ve slunečních erupcích a jejich numerické simulace</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název periodika

Astronomy & Astrophysics

ISSN

0004-6361

e-ISSN

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Svazek periodika

552

Číslo periodika v rámci svazku

April

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

6

Strana od-do

"A90/1"-"A90/6"

Kód UT WoS článku

000317912000090

EID výsledku v databázi Scopus

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