Stellar Death at Low Metallicity
Iain McDonald, University of Manchester, UK
Monday 15 October 2012, 12:00 pm
Pratt Conference Room, 60 Garden Street
From the dust in the earliest galaxies to the elements making up rocky
planets today, all astronomical metals have been made in successive
generations of stars and returned to the interstellar medium (ISM) through
these stars' subsequent demise. To understand the transition from pristine
gas to the complex mixture of the ISM today, we must understand the life
and - particularly - the death of the low-metallicity stars that have come
In this talk, I will talk about death: that of (low-mass) metal-poor
stars and how it differs from the solar-metallicity stars we see around us.
I will discuss how the chemical and mineralogical return from these stars
to space has changed over time, and the differences this implies
for studying the high-redshift Universe.