Abstract Details
| Name: Tomin K James Affiliation: Iiser pune Conference ID: ASI2018_599 Title : Study on energetics of type I bursts using a model independent electron acceleration mechanism. Authors and Co-Authors : Prasad Subramanian, IISER Pune Abstract Type : Poster Abstract Category : Sun and the Solar System Abstract : A resolution to the problem of solar coronal heating is still elusive, despite decades of intense research. However, it is now clear that the solution lies in the details of electron acceleration during magnetic reconnection. Specifically, small energy release events like nanoflares are a primary candidate to explain coronal heating. Most studies on electron acceleration have concentrated on analysing X-ray, UV and EUV data while little attention has been paid to small events related to coronal heating at radio wavelengths. The coherent nature of some radio emissions makes it possible to detect radio signatures from much smaller non-thermal electron populations compared to those responsible emissions at other wavelengths (such as X-rays). Radio observations can thus provide a complementary and novel approach to address the problem of coronal heating by nanoflares. We use combined observations of GMRT and NRH on type I radio bursts to study magnetic reconnection rates. This combined observation method developed by Mercier et al.(2014) had found the smallest yet observed source sizes for a radio noise storm. Using this high temporal resolution data we find the acceleration timescales for the events described by Mercier et al.(2014). Following the model-independent approach to estimate the energetics of type I bursts developed by Subramanian et.al(2005) we determine the energy output of these bursts and the non-thermal fraction of electrons generating these bursts. |