ner_tags: O O O O O O O O O B-Organization B-Grant I-Grant I-Grant I-Grant I-Grant O B-Organization I-Organization I-Organization O B-Telescope O O O O O O B-Organization B-Observatory O O B-Telescope O O O O O O O O O B-Person I-Person B-Person I-Person B-Person I-Person O B-Person I-Person
tokens: The authors were supported by a grant from the NASA Living with a Star Program to Ames Research Center. The HMI data used are courtesy of the NASA/ SDO and the HMI science teams. We gratefully acknowledge many useful discussions with Nagi Mansour, Alan Wray, Alexander Kosovichev, and Philip Scherrer.