Abstracts Details


First Name * : Kalugodu
Last Name * : Chandrashekhar
Affiliation * : Indian Institute of Astrophysics
Abstract Type * : Poster
Title * : Dynamics of the Quiet Sun Bright Point as seen by IRIS and SDO
Author(s) * : Kalugodu Chandrashekhar
Abstract Session * : Chromospheric dynamics
Abstract * : A continuous stream of the network like jets is observed from foot point locations corresponding to AIA BP loop system. On one of the footpoints studied, there is a cancellation of magnetic flux. Complete disappearance of -Ve polarity flux is observed. And correlation with +Ve flux is ~89%. Intensity oscillations show ~18+/- 2 min periodicity in different AIA and SJI channels. Similar periodicity is measured from Si IV 1403 line spectral observations (Velocity, line width). HMI -Ve polarity flux show similar periodicity. Flux Cancellation implies Reconnection flows, which in turn are Observed as Intensity Oscillations. This hypothesis has to be verified looking at specific instances of the outflows. If true, how do the cancellations happen in a periodic way? What are the preferred periodicities, if any?