Запис Детальніше

Frequency drift rates of powerful decameter Type III bursts

Vernadsky National Library of Ukraine

Переглянути архів Інформація
 
 
Поле Співвідношення
 
Title Frequency drift rates of powerful decameter Type III bursts
 
Creator Boiko, A.I.
Mel'nik, V.N.
Konovalenko, A.A.
Rucker, H.O.
Abranin, E.P.
Dorovskyy, V.V.
Lecacheux, A.
 
Description We report on the observations of powerful (fluxes are larger than 10⁻¹⁹ W m⁻² Hz⁻¹) solar Type III bursts at frequencies 10 − 30 MHz. Recordings of 163 bursts, observed in July 2002 and of 231 bursts observed in August 2002 are investigated. The main properties of these Type III bursts (frequency drift rate, duration, flux, frequency bandwidth) are analyzed. In present report we pay more attention to consideration of frequency drift rate. A great difference between the observed and the well-known empirical frequency dependencies of Type III bursts drift rate is determined. A linear approximation for the drift rate versus frequency is found. It indicates, that solar corona above active regions has exponential density distribution. We consider that drift rate value depends on the position of an active region on the solar disc.
 
Date 2017-06-03T19:24:54Z
2017-06-03T19:24:54Z
2011
 
Type Article
 
Identifier Frequency drift rates of powerful decameter Type III bursts / A.I. Boiko, V.N. Mel'nik, A.A. Konovalenko, H.O. Rucker, E.P. Abranin, V.V. Dorovskyy, A. Lecacheux // Advances in Astronomy and Space Physics. — 2011. — Т. 1., вип. 1-2. — С. 57-60. — Бібліогр.: 5 назв. — англ.
987-966-439-367-3
2227-1481
http://dspace.nbuv.gov.ua/handle/123456789/119085
 
Language en
 
Relation Advances in Astronomy and Space Physics
 
Publisher Advances in astronomy and space physics