9-13 September 2019
University of Geneva A100 Sciences II
Europe/Zurich timezone

SALT CEMP Stars Survey

Not scheduled
5m
A100 Sciences II, 30 quai Ernest Ansermet, 1205 Geneva (University of Geneva A100 Sciences II)

A100 Sciences II, 30 quai Ernest Ansermet, 1205 Geneva

University of Geneva A100 Sciences II

30, quai Ernest Ansermet 1205 Geneva
posters

Speaker

Mr Joseph Zepeda (University of Notre Dame)

Description

CEMP stars have increasingly been shown to be important for understanding Pop III stars, early chemical enrichment, and many neutron capture nucleosynthetic processes. However, currently there are only approximately 150 CEMP stars that have been studied in high resolution. While this number is sufficient for statistic of a single population of stars, CEMP stars exist in many varied subgroups of which larger samples are needed to produce reliable statistics. In this survey we have observed 200 stars CEMP stars. The stars were observed using the high resolution spectrograph on the South African Large Telescope (SALT) with a resolution of 40,000 and a signal to noise ranging from 30-50. I will present the results of this survey and discuss their implications for the first stars, chemical evolution, and the r, s, and i-processes.

Primary authors

Mr Joseph Zepeda (University of Notre Dame) Kaitlin Rasmussen (University of Notre Dame) Timothy Beers (University of Notre Dame) Dr Éric Depagne Dr Vinicius Placco (University of Notre Dame)

Presentation Materials

There are no materials yet.