Using Polar Faculae to Determine the Sun’s High-latitude Rotation Rate. I. Techniques and Initial Measurements

• Published in: The Astrophysical Journal
• Main Author: Neil R. Sheeley Jr.
• Format: Article in Journal/Newspaper
• Language: English
• Published: IOP Publishing 2024
• Subjects: Solar faculae; Solar rotation; Solar cycle; Solar magnetic fields; Astrophysics; QB460-466; Lambda; South Pole; South pole
• Online Access: https://doi.org/10.3847/1538-4357/ad85d0; https://doaj.org/article/b75dc6c9ddb744ec98da268b35d84df9

This paper describes a new way of determining the high-latitude solar rotation rate statistically from simultaneous observations of many polar faculae. In this experiment, I extracted frames from a movie made previously from flat-fielded images obtained in the 6767 Å continuum during 1997–1998 Febru...