Temporal Variations of High-Degree Solar p-Modes using Ring-Diagram Analysis
Solar and Stellar Astrophysics
2015-06-15 v1
Abstract
We study temporal variations in the amplitudes and widths of high-degree acoustic modes by applying the ring-diagram technique to the GONG+, MDI and HMI Dopplergrams during the declining phase of cycle 23 and rising phase of cycle 24. The mode parameters from all three instruments respond similarly to the varying magnetic activity. The mode amplitudes and widths show consistently lower variation due to smaller magnetic activity in cycle 24 as compared to the previous solar cycle.
Keywords
Cite
@article{arxiv.1303.6722,
title = {Temporal Variations of High-Degree Solar p-Modes using Ring-Diagram Analysis},
author = {Olga Burtseva and Sushant Tripathy and Richard Bogart and Kiran Jain and Rachel Howe and Frank Hill and Maria Cristina Rabello-Soares},
journal= {arXiv preprint arXiv:1303.6722},
year = {2015}
}
Comments
Proceedings of the GONG 2012/ LWS/ SDO-5/ SOHO 27 conference; to be published by the Journal of Physics: Conference Series