Lecture by Prof. Arnab Rai choudhury in Physics Auditorium@ 4pm

Location: Physics Auditorium

The National Academy of Sciences, India (NASI), Allahabad
Department of Physics, Indian Institute of Science, Bangalore

cordially invite you for a lecture by Prof. Arnab Rai choudhury

Title : How the Saha Ionization Equation was Discovered

Date and Time : August 13, 2019

Venue : Auditorium, Department of Physics, IISc

Although the Saha ionization equation is a standard topic in advanced statistical physics and most professional physicists would have some knowledge of it, the exact nature of Meghnad Saha’s contributions in this subject is not widely known. Based on an analysis of Saha’s original papers and other relevant papers by contemporary scientists, as well as other source materials such as letters exchanged between scientists, the speaker will discuss how Saha used the theory of thermal ionization to solve some of the most important astrophysics problems of that era.

About the speaker: Arnab Rai Choudhuri is a Professor of Physics at the Indian Institute of Science. He received his PhD in 1985 from the University of Chicago. A theoretical astrophysicist, Choudhuri has done research on the formation of sunspots and the 11-year sunspot cycle. He is the author of two advanced textbooks, The Physics of Fluids and Plasmas (CUP, 1998) and Astrophysics for Physicists (CUP, 2010), used in many universities around the world. Choudhuri is an elected Fellow of all the three science academies of India as well as TWAS. He was a recipient of the Alexander von Humboldt Fellowship and is currently a JC Bose Fellow.

High Tea: 5.15 P.M.