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PRODID:UW-Madison-Physics-Events
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SEQUENCE:0
UID:UW-Physics-Event-8488
DTSTART:20231116T213000Z
DTEND:20231116T223000Z
DTSTAMP:20260414T045328Z
LAST-MODIFIED:20231031T111814Z
LOCATION:4421 Sterling Hall
SUMMARY:Dancing with the stars: next generation models of binary star 
 systems\, Astronomy Colloquium\, Meng Sun\, Northwestern University
DESCRIPTION:Stars serve as the foundational components of astrophysics
 \, with approximately half of them existing in binary systems. Underst
 anding the evolution of these binaries is crucial for understanding my
 sterious phenomena from the existence of blue straggler stars to the d
 iversity of explosive transients\, to black-hole and neutron-star merg
 ers. Modeling these observables needs state-of-the-art modeling of sta
 rs and their interactions. An exciting new modeling paradigm is exempl
 ified in POSYDON\, a cutting-edge publicly available binary population
  synthesis code\, employs detailed stellar structure and binary simula
 tions from MESA. The code balances both speed and accuracy\, providing
  the best of both worlds and better serving the gravitational wave dat
 a analysis. In this presentation\, I also delve into how binary stars 
 are modeled in this framework and discuss key mechanisms in developing
  the new version of POSYDON: wind Roche-lobe overflow and the impact o
 f magnetic braking on angular momentum evolution in binaries.<br>\n
URL:https://www.physics.wisc.edu/events/?id=8488
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