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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20180201T103000
DTEND;TZID=Atlantic/Canary:20180201T113000
UID:iactalks-1123
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/1123
CREATED:2018-02-01T10:30:00+00:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:On the evolution of rotation and magnetism from solar-like stars to
  red giants using Kepler data
DESCRIPTION:On the evolution of rotation and magnetism from solar-like star
 s to red giants using Kepler data\nDr. Savita Mathur\n\n More than 40 year
 s ago, Skumanich (1972) showed how rotation and  magnetic activity decreas
 ed with the age of a solar-like star. While  this result was based on the 
 study of young cluster stars, later  observations  of other clusters,
  still younger than the Sun, agreed with  this “gyrochronology&rdquo
 ; relationship.   With the high-quality photometric data collected by the 
 Kepler mission,  we have the opportunity to test and study the evolution o
 f stellar  dynamics to older field stars. While for clusters, the determin
 ation of  stellar ages is eased by the fact that the stars were born from 
 the same  molecular cloud, it gets trickier and less precise for field sta
 rs.  This is where asteroseismology plays an important role by providing m
 ore  precise ages than any other classical methods.   In this talk I will 
 mostly focus on asteroseismic targets from  solar-like stars to red giants
  where we could measure surface rotation,  core rotation, and magnetic act
 ivity. I will show how the photometric  data of Kepler is providing key in
 formation in the understanding of  angular momentum transport in stars and
  of magnetic activity at  different evolutionary stages of a star like the
  Sun.
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