Indications of R-mode Oscillations in SOHO/MDI Solar Radius Measurements
Abstract
Analysis of solar radius measurements acquired by the Michelson Doppler Imager on the Solar and Heliospheric Observatory spacecraft supports previously reported evidence of solar internal r-mode oscillations in Mt Wilson radius data and in 90Sr beta-decay data. The frequencies of these oscillations are compatible with oscillations in a putative inner tachocline that separates a slowly rotating core from the radiative envelope.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- May 2015
- DOI:
- 10.1088/0004-637X/804/1/47
- arXiv:
- arXiv:1503.01039
- Bibcode:
- 2015ApJ...804...47S
- Keywords:
-
- methods: data analysis;
- Sun: oscillations;
- Astrophysics - Solar and Stellar Astrophysics
- E-Print:
- 10 pages,5 figures, 2 tables, accepted for publication in Astrophysical Journal