Abstract Details
| Name: Tomin K James Affiliation: Iiser pune Conference ID: ASI2016_599 Title : Elemental electron acceleration at sun Authors and Co-Authors : Prasad Subramanian, IISER Pune Abstract Type : Poster Abstract Category : Sun and the Solar System Abstract : We aim to estimate the energy involved in elemental electron acceleration episodes in the solar corona. We fit the observed electron distribution to a Kappa distribution function, which seamlessly integrates thermal and non-thermal characteristics. Using a steady-state Fokker-Planck equation to describe the stochastic acceleration of electrons, we find that the energy involved in each electron acceleration spike normally around 10^21 ergs/s. To understand the acceleration of the energetic particles at the acceleration site we compare hard X-ray photon spectra observed by RHESSI with the near-earth electron spectra of the associated events measured using the EPAM experiment aboard ACE spacecraft. We find a positive correlation, suggesting same physical mechanism responsible for the acceleration process of the HXR producing electrons and the electrons escaping from the acceleration site. |