Please use this identifier to cite or link to this item:
http://hdl.handle.net/2248/3110
Title: | Radio observations of a coronal mass ejection induced depletion in the outer solar corona |
Authors: | Ramesh, R Sastry, Ch. V |
Keywords: | Sun: Corona Sun: Particle Emission Sun: Radio Radiation |
Issue Date: | Jun-2000 |
Publisher: | European Southern Observatory |
Citation: | Astronomy and Astrophysics, Vol. 358, No. 2, pp. 749 - 752 |
Abstract: | We report the first low frequency radio observations of a depletion that occurred in the outer solar corona in the aftermath of the CME event of 1986 June 5, with the large E-W one dimensional grating interferometer at the Gauribidanur radio observatory. We estimated the mass loss associated with the depletion and found that it agrees well with the value obtained through white light observations of the event. The radio brightness temperature at the location of the depletion was less by a factor of ~ 7 compared to the ambient. The angular extent over which the decrease in brightness took place was <= 3'. The electron density variation was found to be proportional to r-10. Since observations at different wavelength bands have different physical origins, the radio method might be useful in independently estimating the characteristics of CME induced coronal depletions. |
URI: | http://hdl.handle.net/2248/3110 |
ISSN: | 0004-6361 |
Appears in Collections: | IIAP Publications |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Ramesh R.pdf | 430.19 kB | Adobe PDF | ![]() View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.