Spectrum of Solar Type I Continuum Noise Storm in the 50–80 MHz Band and Plasma Characteristics in the Associated Source Region | Zendy

G. A. Shanmugha Sundaram | Zendy; K. R. Subramanian | Zendy

Open Access

Spectrum of Solar Type I Continuum Noise Storm in the 50–80 MHz Band and Plasma Characteristics in the Associated Source Region

Author(s) -

G. A. Shanmugha Sundaram,

K. R. Subramanian

Publication year - 2004

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/382582

Subject(s) - physics , spacecraft , plasma , spectral index , astrophysics , radiation , spectrograph , telescope , extreme ultraviolet , noise (video) , astronomy , storm , spectral line , optics , meteorology , laser , quantum mechanics , artificial intelligence , computer science , image (mathematics)

Continuum observations of a solar noise storm in the frequency range of 50 -80 MHz observed with the Gauribidanur radio spectrograph during 2000 September,26 & 27, are presented here. The radio spectral index of the noise stormcontinuum in the band 50 - 80 MHz is found to be ~3.65 during the above period.The Noise Storm continuum radiation is explained as a consequence of thenon-thermal, plasma emission mechanism. The beam-density of suprathermalelectrons is estimated for the coronal plasma near the source region of stormradiation. Supplementary evidence for the density-estimate is provided by wayof analysing the imaging data from the SXT on-board the Yohkoh spacecraft, andthe LASCO, MDI, and EIT on board the SoHO spacecraft.Comment: 43 pages; 5 tables; 15 figures (9 color). ApJ (Part I : accepted

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research