@Article{SubramanianWhKaSySaAn:2007:ElAcPo,
author = "Subramanian, P. and White, S. M. and Karlick{\'y}, M. and Sych,
R. and Sawant, Hanumant Shankar and Ananthakrishnan, S.",
affiliation = "{Indian Institute of Astrophysics} and {Department of Astronomy.
University of Maryland} and {Astronomical Institute of the Academy
of Sciences of the Czech Republic} and Institute of Solar
Terrestrial Physics, Siberian Branch of the Russian Academy of
Sciences (ISTP) and {Instituto Nacional de Pesquisas Espaciais
(INPE)} and National Centre for Radio Astrophysics, Tata Institute
of Fundamental Research, Pune University Campus",
title = "Electron acceleration in a post-flare decimetric continuum
source",
journal = "Astronomy \& Astrophysics",
year = "2007",
volume = "468",
number = "3",
pages = "1099--1102",
month = "June",
keywords = "acceleration of particles, plasmas, Sun : radio radiation, Sun :
corona, Sun : flares, SOLAR RADIO-EMISSION, PLASMA-EMISSION,
CONSTRAINTS.",
abstract = "Aims. To calculate the power budget for electron acceleration and
the efficiency of the plasma emission mechanism in a post-flare
decimetric continuum source. Methods. We have imaged a high
brightness temperature (similar to 10(9) K) post-flare source at
1060 MHz with the Giant Metrewave Radio Telescope (GMRT). We use
information from these images and the dynamic spectrum from the
Hiraiso spectrograph together with the theoretical method
described in Subramanian \& Becker (2006, Sol. Phys., 237, 185)
to calculate the power input to the electron acceleration process.
The method assumes that the electrons are accelerated via a
second-order Fermi acceleration mechanism.Results. We find that
the power input to the nonthermal electrons is in the range 3 x
10(25)-10(26) erg/s. The efficiency of the overall plasma emission
process starting from electron acceleration and culminating in the
observed emission could range from 2.87 x 10(-9) to 2.38 x
10(-8).",
copyholder = "SID/SCD",
issn = "0004-6361 and 1432-0746",
language = "en",
targetfile = "electron acceleration.pdf",
urlaccessdate = "19 maio 2024"
}