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The Companions of stars across the mass ratio spectrum

Friday October 2, 2020
3:30 pm

 Presenter:  Kaitlin Kratter Associate Professor at Steward Observatory
 Series:  Physics and Astronomy Colloquium
 Abstract:  Stars in our galaxy, and likely the whole Universe, rarely reside alone. They are orbited by planets, other stars, and sometimes both. In this talk I will begin with a census of the varieties and importance of stellar companionship in astronomy. These pairs impact nearly everything we study, from cosmology to planetary habitability. I will then illustrate how recent large surveys have helped us improve theoretical models of star and planet formation. I will also emphasize the unique lessons we can learn from the companions that occupy the “in between:” not quite stars, and not quite planets.
 Web Site:    https:/ / www.as.arizona.edu/ people/ faculty/ kaitlin-kratter
 Host:  Ylva Pihlstrom
 File/Video Recording:  https://youtu.be/pNV_0jdReQw
 Location:  Zoom

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