# ITC Colloquium/ITC Luncheon #### calendar\_today Date and Time **March 27, 2025** 11:00AM - 01:30PM EDT **ITC Colloquium - Emily** **Leine****r** Thursday, March 27, 2025 11 AM Phillips and streamed: **Insights in Binary Evolution from Open Cluster Stellar Populations** Observations of star cluster populations were instrumental in developing the theory of single-star stellar evolution, and star clusters can still provide many important observational constraints when it comes to understanding stellar evolution in binary systems. Stars in binary systems will often interact through tidal forces, evolve through Roche lobe overflow and mass transfer, or even merge together at some point in their evolution. Models of these binary interaction processes remain uncertain, making the evolutionary paths of binaries difficult to predict. I will discuss some of the techniques used to identify post-mass-transfer binaries in open clusters. Many of the post-mass-transfer binaries we find with these techniques have characteristics at odds with expectations from standard binary evolution models, and I will review some of the insights these detections provide about binary evolution pathways. If you would like to meet with Emily Leiner (Thursday/Friday) please use the sign up sheet below [https://docs.google.com/spreadsheets/d/1I7j6TxetsblEX1S\_tfZQJbzmvywlwCE8Wdv4SFE2ofw/edit?usp=sharing](https://docs.google.com/spreadsheets/d/1I7j6TxetsblEX1S_tfZQJbzmvywlwCE8Wdv4SFE2ofw/edit?usp=sharing) \------------------------------------------------- **ITC Luncheon (with food!) in Phillips!** Thursday, March 27, 2025 12:30 PM Phillips and streamed: **Emily Leiner\* (Northwestern)** "What are these sub-subgiant stars?" **Kelsey Johnson (UVA)** "The Importance of Awe in the Sciences" **Hongping Deng (Shanghai Astronomy Observatory)** "Meshless finite mass method applied to planet formation: subtleties in resolving (magnetized) subsonic turbulence in distorted accretion disks and beyond" **Rafael Luque (University of Chicago)** "The Water World Opportunity" See also:- [ Colloquium ](/event-type/colloquium) Share on:- [ Facebook ](#) - [ Twitter ](#) - [ Linkedin ](#) Save: [ Add to calendar calendar\_today ](https://itc.cfa.harvard.edu/node/1627196/event-feed.ics) Copy link link