Webbläsaren som du använder stöds inte av denna webbplats. Alla versioner av Internet Explorer stöds inte längre, av oss eller Microsoft (läs mer här: * https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Var god och använd en modern webbläsare för att ta del av denna webbplats, som t.ex. nyaste versioner av Edge, Chrome, Firefox eller Safari osv.

Default user image.

Sofia Feltzing

Professor

Default user image.

4MOST Consortium Survey 2: The Milky Way Halo High-Resolution Survey

Författare

  • Norbert Christleib
  • Chiara Battistini
  • P Bonifacio
  • E. Caffau
  • Hans-Günter Ludwig
  • M. Asplund
  • Paul Barklem
  • Maria Bergemann
  • Ross Church
  • Sofia Feltzing
  • Dominic Ford
  • E. K. Grebel
  • C. J. Hansen
  • Amina Helmi
  • Georges Kordopatis
  • Mikhail Kovalev
  • Andreas Korn
  • Karin Lind
  • A. Quirrenbach
  • J. Rybizki
  • A Skúladóttir
  • E. Starkenburg
Visa allt

Summary, in English

We will study the formation history of the Milky Way, and the earliest phases of its chemical enrichment, with a sample of more than 1.5 million stars at high galactic latitude. Elemental abundances of up to 20 elements with a precision of better than 0.2 dex will be derived for these stars. The sample will include members of kinematically coherent substructures, which we will associate with their possible birthplaces by means of their abundance signatures and kinematics, allowing us to test models of galaxy formation. Our target catalogue is also expected to contain 30 000 stars at a metallicity of less than one hundredth that of the Sun. This sample will therefore be almost a factor of 100 larger than currently existing samples of metal-poor stars for which precise elemental abundances are available (determined from high-resolution spectroscopy), enabling us to study the early chemical evolution of the Milky Way in unprecedented detail.

Avdelning/ar

  • eSSENCE: The e-Science Collaboration

Publiceringsår

2019

Språk

Engelska

Sidor

26-29

Publikation/Tidskrift/Serie

Messenger

Volym

175

Dokumenttyp

Artikel i vetenskaplig tidskrift

Förlag

The European Southern Observatory

Ämne

  • Astronomy, Astrophysics and Cosmology

Aktiv

Published

Projekt

  • 4MOST - massive spectroscopic surveys of the Milky Way and the Universe

ISBN/ISSN/Övrigt

  • ISSN: 0722-6691