asymptotics in astrophysics SG session 4: helioseismology
- Date
- November 29 (Fri) at 10:30 - 12:00, 2024 (JST)
- Speaker
-
- Ryota Shimada (Ph.D. Student, Department of Astronomy, Graduate School of Science, Kyoto University)
- Venue
- #359 3F, Seminar Room #359
- via Zoom
- Language
- English
- Host
- Lucy McNeill
Constraining the distribution of internal magnetic fields through observations is considered to advance solar dynamo models aimed at understanding the 11-year cycle of solar magnetic activity.
This paper [1] is on the frequency shift of standing acoustic waves inside the Sun caused by internal magnetic fields. Quasi-degenerate perturbation theory is applied to treat perturbation by magnetic fields. I’d like to discuss their methods and application in the session.
Reference
- René Kiefer, Markus Roth, The Effect of Toroidal Magnetic Fields on Solar Oscillation Frequencies, arXiv: 1801.07932
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