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Study of the structures of the explosive events in the UV

Published online by Cambridge University Press:  26 February 2010

R. T. Niembro-Hernandez ,
J. E. Mendoza-Torres  and
K. Wilhelm
R. T. Niembro-Hernandez
Affiliation:
Fac. de Ciencias, UNAM, Mexico email: [email protected]
J. E. Mendoza-Torres
Affiliation:
Instituto Nacional de Astrofisica, Optica y Electronica, INAOE, Mexico email: [email protected]
K. Wilhelm
Affiliation:
Max-Planck-Institute for Solar System Research, MPS, Germany email: [email protected]
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Abstract

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We analyze Si iv 139.37 nm emission line during solar Explosive Events (EE) near the center of the solar disk with the aim to study the structure of the sources of EEs observed at the VUV. The observations were made by SUMER, on board SoHO, with a raster regime of six EW positions that allowed us to identify the times and EW, NS positions of the maximum amplitude of each EE. Based on one dimensional NS distributions at three different wavelengths (blue, central and red) for times around each maximum we have identified three different shapes of the sources. Also, It was found that the maximum at the blue wing is attained after the maxima at red and central wavelengths.

Keywords

Sun: UV radiationcoronaactivitytechniques: spectroscopic
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 5 , Symposium S264: Solar and Stellar Variability: Impact on Earth and Planets , August 2009 , pp. 276 - 278
Copyright
Copyright © International Astronomical Union 2010

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