AST Colloquium - Variable Star Astrophysics

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Variable Star Astrophysics

Variable Star Astrophysics

Dr. Shashi Kanbur
Chair of Physics Department
SUNY Oswego

Variable Stars are stars whose intrinsic brightness changes with time due to internal physics. Radially pulsating stars like Cepheids and RR Lyraes change their brightness by a magnitude or so regularly with periods ranging from hours to days respectively. He gives a brief introduction to the physics behind these stars, the wealth of observational data that is now available, an introduction to theoretically modeling such objects and the applications of the properties of these stars in wider astrophysics problems, most notably non‐CMB based methods of estimating Hubble's constant. Dr. Kanbur concludes with two examples of recent work in this area that include machine learning and the radiation hydrodynamics of the outer envelopes of these stars.

Speaker Bio:
Dr. Kanbur has a BSc in Mathematics from UCL, a masters degrees in Mathematical Statistics from Cambridge and Stanford, a PhD in Astrophysics from UCL. Post‐docs at the University Munich, Nebraska, Glasgow. Now he is chair of the Physics department at SUNY Oswego. Over 2 million dollars in research/education funding from NSF, over 60 papers in peer reviewed journals, and work extensively with undergraduates.

Intended Audience:
No background knowledge is required. All are welcome.

Cheryl Merrell
Event Snapshot
When and Where
February 17, 2020
4:00 pm - 5:00 pm
Room/Location: 1125

This is an RIT Only Event

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