HXR and Microwave Spectroscopy of the X2.2 flare on February 15 2011

Details HXR and Microwave Spectroscopy of the X2.2 flare on February 15 2011 HXR and Microwave Spectroscopy of the X2.2 flare on February 15 2011

May 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011spd....42.2203x&link_type=abstract

American Astronomical Society, SPD meeting #42, #22.03; Bulletin of the American Astronomical Society, Vol. 43, 2011

Astronomy and Astrophysics

Astronomy

Scientific paper

We present a spectroscopic study of an X-class flare observed on 2011 Feb. 15, which is confirmed as a white-light flare by HINODE/SOT continuum images. HXR observation of this flare was taken by the Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) and radio observation was taken by the Korean Solar Radio Burst Locator (KSRBL).
During the 10 minute lifetime of this flare, four major temporal peaks have
been identified in both HXR and radio emissions. Spectra at each individual peak are obtained with a frequency range in microwave from 5 to 18 GHz and an energy range in HXR from 35 to 150 keV, respectively. The high cadence observations in HXR and microwave provide an unique tool to diagnose the properties of energetic electrons and their temporal evolution. In particular, we will present the result of electron power index as derived from these two wavelengths, and its peak-to-peak variation.

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