Abstract Details

Name: BISWANATH MALAKER
Affiliation: IUCAA
Conference ID : ASI2023_526
Title : Thermodynamic evolution of plumes
Authors : Biswanath Malaker and Durgesh Tripathi
Mode of Presentation: Poster
Abstract Category : Sun and the Solar System
Abstract : Coronal plumes are elongated structures prominently visible inside coronal holes. These are long-lasting transient features having a lifetime of around 20 hours. There is some evidence that plumes are related to jets, which are transients occurring at much shorter timescale compared to plumes. Observations further suggest that numerous jets occurring at the foot points of the plumes are responsible for such long-lasting nature of the plumes. In this work, we exploit the continuous multiwavelength observations from the Atmospheric Imaging Assembly (AIA) to study and establish the relationship between jets and plumes and their thermodynamic evolution by employing the technique of Different Emission Measure (DEM). We also aim to study the evolution of the photospheric magnetic field in the footpoint regions of plumes using the measurements taken from the Helioseismic and Magnetic Imager (HMI). For this purpose, we have selected ~100 plumes and analyzed one in detail. Preliminary results related to the plume's origin and thermodynamic evolution will be presented.