[Astronomy seminar] Astronomy Department Seminar - October 8th Anke Arentsen

[Astronomy seminar announcements]

Dear all,

on Friday the 8th of October we will have an Astronomy seminar with Anke Arentsen from The University of Strasbourg speaking remotely via Zoom at 10:30.

We also leave the Zoom session open after the questions, so that interested participants can stay and chat with the speaker in an informal way.

Title: Galactic Archaeology with the oldest stars in the Milky Way

Abstract: The most metal-poor stars we find in the Milky Way today were born in pristine environments in the early Universe — these stars are expected to be extremely old. They can teach us about the First Stars and about the early formation and evolution of our Galaxy. In this talk I will focus on two groups of ancient stars: very metal-poor stars with exceptionally high carbon abundances (CEMP stars), which are probes of the nucleosynthesis in the First Stars and binary interactions, and the most metal-poor stars in the inner regions of the Milky Way. The fraction of metal-poor stars which are very old is expected to be very high in the Galactic bulge region. However, searching for metal-poor stars there faces many challenges, hence much is unknown about the properties of the metal-poor inner Galaxy. I will introduce the Pristine Inner Galaxy Survey (PIGS) which has reached unprecedented efficiency in finding very metal-poor stars in the Galactic bulge region. I will present recent PIGS results on the chemistry and the kinematics of metal-poor inner Galaxy stars, and discuss what they can teach us about this ancient component of the Milky Way.

Tine Libbrecht is inviting you to a scheduled Zoom meeting.

Topic: Friday Seminar
Time: Oct 8, 2021 10:15 AM Stockholm

Join Zoom Meeting
https://stockholmuniversity.zoom.us/j/4181744735?pwd=WlcrNnZpUmVva05seHA4d1ZOUitBUT09

Meeting ID: 418 174 4735
Passcode: wevRIEA38a

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