Physics
Scientific paper
May 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agusmsh54b..04n&link_type=abstract
American Geophysical Union, Spring Meeting 2007, abstract #SH54B-04
Physics
1739 Solar/Planetary Relationships, 7536 Solar Activity Cycle (2162), 7537 Solar And Stellar Variability (1650), 7938 Impacts On Humans, 7974 Solar Effects
Scientific paper
The variability of the Sun over stellar and planetary evolutionary timescales may have important consequences for planetary atmospheres such as the Earth's, including the forcing of global climate and evolution of life. This solar variability is in part due to the changing magnetism of the Sun, which has origins in the solar dynamo mechanism. A novel approach towards determining solar variability over such long timescales - stretching to billions of years - is to use Sun-like stars in various evolutionary phases as proxies of solar activity. In this talk, I will review efforts to derive this long-term variability of the Sun through theoretical dynamo modelling and observational analysis of stellar magnetic activity. This work is funded by the NASA Living With a Star program through grant NNG05GE47G.
Martens Petrus C.
Nandy Dibyendu
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