# Sydney Barnes (AIP)

Aspects of the Rotation of Cool Stars
When Feb 15, 2013 from 10:30 AM to 12:00 PM Colloquium SH, Lecture hall vCal / iCal

This talk will focus on the rotation of cool stars, and touch on various other aspects related to stellar activity. The study of these activity-related properties seems to permit access to a number of aspects of modern stellar physics that are not possible with standard' stellar models. Conversely, the rotation of cool stars is now known to be a dependent variable, and this dependence permits improved ways to access classical' stellar properties such as age (via a method called gyrochronology). I will talk briefly about this method, and a couple of possible applications, such as determining a chronology for Galactic stars. However, the onus will be on attempts to understand what is going on within cool stars, and what the implications might be for the evolution of activity-related observables. Some implications for the history of our own Sun will also be mentioned.