Colloquium speaker, David Hogg (NYU) today at 4pm

[Patterson, Robin L.]

Please join us for the Physics Colloquium today, at 4:00 PM in The Robert Smith Seminar Room. There will be a reception in the Atrium at 3:45PM. Details concerning the talk are as follows:

Speaker:         David  Hogg (NYU)
Date:               Tuesday, January 17, 2017
Time:              4:00 PM
Place:             1080 Physics Research Building, The Robert Smith Seminar Room
Title:                Data-driven Models of Stars


Abstract:   We have spent more than a century building physical models of stars. However, like in many physical models, which include (for example) the models of QCD, cosmological structure formation, and the Earth's atmosphere, the physical models disagree with the data in structured and repeatable ways, and we have enormous amounts of data to discover, test, and measure these disagreements. In many cases, we can combine good physical knowledge with good data to build a predictive model that is more powerful than any model built with either used on its own. Here I demonstrate these general points with the specific example of red-giant stars, where our data-driven model is now delivering more precise measurements of detailed stellar chemical compositions (the products of stellar nucleosynthesis) than any purely physical model.


The website for the colloquium is https://physics.osu.edu/physics-colloquium-schedule

Robin
[The Ohio State University]
Robin Patterson
Program Coordinator
Department of Physics
1040K Physics Research Building, 191 W. Woodruff Avenue, Columbus, OH 43210
(614) 292-8523 Office     (614) 292-7557 Fax
patterson.716 at osu.edu<mailto:patterson.716 at osu.edu> osu.edu<http://osu.edu/>

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