Abstract Details
| Name: Gajanan Dnyaneshwar Harale Affiliation: student Conference ID: ASI2017_471 Title : Study of Particle Acceleration Mechanism during the formation of shocks in galaxy clusters formation Authors and Co-Authors : Surajit Paul Inspire Faculty Dept Of Physics SP Pune University Reju Sam John Ph.D. student Ponducherry University Abstract Type : Poster Abstract Category : General Relativity and Cosmology Abstract : Very high energy radiations that has been observed on the earth as particles showers, mainly consist of accelerated charged particles like electrons, protons and charged nuclei and non charged particles like Gamma rays, neutrinos etc. Though galactic origin of these radiations are very well studied, many of the extragalactic origin has not been explored or remained un-explained. In this context, the biggest puzzle is the observed Gamma ray and neutrino background and their acceleration mechanism. Also, we have not yet detected Gamma rays from Galaxy clusters, the most energetic object known to us. Possibly, large scale structures emitting Gamma rays that creates this back ground, but at a particular state of its activity like mergers.During merging process the possible mechanism that can accelerate particles in Large Scale Structures and contribute to enhance the extragalactic Gamma Rays and neutrino population. We thus investigate the role of particle acceleration in the production of cosmic ray particles like gamma ray and neutrino in the structure formation shocks during formation of galaxy clusters as the mechanism for accelerating particles to such an ultra high energy. We have studied this problem with both analytical and numerical methods. So, in this work, we will try to see how we can guide the observations by predicting correct objects by using our theoretical models of particle acceleration. |