Seminar Series

The Life and Death of Intermediate-mass Stars

Speaker

Dr David Frew

Institute

Department of Physics, The University of Hong Kong.

Time & Place

Wed, 18 May 2016 11:00:00 NZST in Rutherford 701, Level 7

All are welcome

Abstract

I will present an overview of our present understanding of the late-stage evolution of intermediate-mass stars (~ 1 to 8 times the mass of our Sun). Both single stars and those in binary systems will be examined. I will pay particular attention to the post-red giant phase(s) of evolution, when most of a star's mass is ejected into the ambient interstellar medium. The physical and chemical characteristics of the "planetary nebulae" that are formed at this point in a star's life provide insights into the many processes governing both stellar death and Galactic enrichment. I will conclude this talk by outlining current and future research questions in this field of astrophysics.