Astronomy and Space Physics

Marília Gabriela Cardoso Corrêa Carlos (Uppsala University): Multiple stellar populations in globular clusters: The case of NGC 2808

Name: Marília Gabriela Cardoso Corrêa Carlos (Uppsala University): Multiple stellar populations in globular clusters: The case of NGC 2808
Start: 2023-02-23T14:00:00+01:00
End: 2023-02-23T15:00:00+01:00
Location: Ångströmlaboratoriet

Thursday 23 Feb 2023, 14:00 → 15:00 Europe/Stockholm

101132 (Ångströmlaboratoriet)

101132

Ångströmlaboratoriet

Description

Title: Multiple stellar populations in globular clusters: The case of NGC 2808
Speaker: Marília Gabriela Cardoso Corrêa Carlos
Affiliation: Uppsala University
Time: Thursday 23 February 2023, 1400 to 1500
Location: 101132Å

Abstract:

In the past 15 years, the overwhelming observational evidence of multiple stellar populations in globular clusters (GCs) has challenged the idea that a GC consists of stars born at the same time out of the same material. I will discuss the methods and tools to investigate the different populations of stars in GCs, from the point of view of photometry and high resolution spectroscopy, in an effort to shed light on the mechanisms behind the formation of multiple stellar populations. I will then present and discuss detailed chemical abundances of NGC 2808, one of the most massive GCs in our Galaxy, hosting at least five different stellar populations.