Abstract Details

Name: Reetika Joshi
Affiliation: Kumaun University, Nainital
Conference ID: ASI2017_1231
Title : Multiple Solar Jets from Rotating Active Region
Authors and Co-Authors : Ramesh Chandra Kumaun University, Nainital
Abstract Type : Oral
Abstract Category : Sun and the Solar System
Abstract : We present here the study of seven solar jets on 2014 April 15 - 16 from the active region NOAA 12035. These jets were well observed by AIA and HMI instruments on-board SDO satellite. We have computed the kinematics of all the observed jets at different E(UV) wavebands. We found different speeds at different wavelengths, which implies jets speed varies with the different heights of solar atmosphere. The calculated average speeds varies from 50 to 450 km/s. We have also computed the height, width and lifetimes of these jets. In order to understand the magnetic causes of these jets, we have used HMI magnetic field. The major positive polarity spots of the active region shows clockwise rotation, which evidenced the increase of shear in the active region. Further the evolution of photospheric magnetic field indicate the emergence as well cancellation at the jet's locations. We describe in detail about these emerging and cancelling magnetic features and its connection with the origin of jets.