Abstract
There has been some discussion at this meeting of small changes in frequencies and frequency splittings observed during the solar cycle. Previous observations of frequency changes at the level of 10−4 have been convincingly confirmed by several observations presented at this meeting (Jefferies et al. 1990; Libbrecht and Woodard 1990; Palle et al. 1990). It has been noted that solar photometric (differential and absolute) observations are of comparable accuracy and show similar solar cycle variations. I will summarize here how the latest photometric and helioseismic data may be accounted for by changes in the the convection zone during a solar cycle. Some of these data and this model have been further described elsewhere (Kuhn 1989; Goode and Kuhn 1990).
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
