Abstract Details

Name: Kartav Kesri
Affiliation: Indian Institute of Science Education and Research Bhopal
Conference ID : ASI2024_49
Title : Dependence of spicule properties on magnetic field -- results from magnetohydrodynamic simulations
Authors : Kartav Kesri Sahel Dey Dr. Piyali Chatterjee Dr. Robertus Erdelyi
Authors Affiliation: Kartav Kesri - IISER Bhopal, IIA Bangalore Sahel Dey - IISc Bangalore, IIA Bangalore Dr. Piyali Chatterjee - IIA Banaglore Dr. Robertus Erdelyi - University of Sheffield, United Kingdom
Mode of Presentation: Poster
Abstract Category : Sun, Solar System, Exoplanets, and Astrobiology
Abstract : Solar spicules are the plasma jets observed in the interface region between the visible solar surface and corona. At any given time, there are millions of spicules present all over the sun. While various models attempt to elucidate their origin and characteristic, but we consider the one driven by the magneto-convection undulations. We solve the radiative magneto-hyrdodynamical (rMHD) equations using PENCIL CODE a spatial resolution of 16 km under four different magnetic field strengths. We investigated the rMHD simulation data to bring out various trends. An intriguing outcome of this study is a consistent reduction in both the number density and the maximum height reached by spicules as magnetic field strength increases. We also conducted parabolic curve fitting on a subset of spicules, selected such that their heights lie above the 75th percentile in the distribution, in order to find a relation between deceleration of spicule tip and the magnetic field strength. Our results contribute valuable insights into the behavior of solar spicules and their response to magnetic field strength from quiet sun to active regions.