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http://hdl.handle.net/2248/3498
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DC Field | Value | Language |
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dc.contributor.author | Kathiravan, C | - |
dc.contributor.author | Ramesh, R | - |
dc.date.accessioned | 2008-09-09T10:43:59Z | - |
dc.date.available | 2008-09-09T10:43:59Z | - |
dc.date.issued | 2005-07 | - |
dc.identifier.citation | Astrophysical Journal, Vol. 627, No. 1, Part 2, pp. L77 - L80 | en |
dc.identifier.issn | 0004-637X | - |
dc.identifier.uri | http://hdl.handle.net/2248/3498 | - |
dc.description.abstract | We present meter-wavelength observations of the solar corona close to the onset of the ``halo'' coronal mass ejection (CME) of 1998 January 21 and estimate the change in electron density with time through a reproduction of the observed two-dimensional radio brightness distribution using a ray-tracing technique. Our calculations show that the average density above the background in the southeast quadrant of the corona overlying the visible solar disk had increased significantly (from 0 to 18), in the aftermath of the CME liftoff. This indicates that the source region of the event must have been located at a lower level of the solar atmosphere in that area. The rate of mass injection corresponding to the above change in density was found to be ~8.8×10/sup15 g hr/sup-1. | en |
dc.language.iso | en | en |
dc.publisher | The American Astronomical Society | en |
dc.relation.uri | http://www.journals.uchicago.edu/doi/abs/10.1086/431930 | en |
dc.relation.uri | http://dx.doi.org/10.1086/431930 | en |
dc.subject | Sun: Solar-terrestrial Relations | en |
dc.subject | Sun: Activity | en |
dc.subject | Sun: Corona | en |
dc.subject | Sun: Radio Radiation | en |
dc.title | Identification of the Source Region of a ``Halo'' Coronal Mass Ejection Using Meter-Wavelength Radio Data | en |
dc.type | Article | en |
Appears in Collections: | IIAP Publications |
Files in This Item:
File | Description | Size | Format | |
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Identification of the Source Region of a ``Halo'' Coronal Mass Ejection Using Meter-Wavelength Radio Data | 105.49 kB | Adobe PDF | ![]() View/Open |
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