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

Christleib, Norbert ; Battistini, Chiara LU ; Bonifacio, P ; Caffau, E. ; Ludwig, Hans-Günter LU ; Asplund, M. ; Barklem, Paul ; Bergemann, Maria ; Church, Ross LU orcid and Feltzing, Sofia LU orcid , et al. (2019) In Messenger 175. p.26-29
Abstract
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... (More)
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. (Less)
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Messenger
volume
175
pages
26 - 29
publisher
The European Southern Observatory
ISSN
0722-6691
DOI
10.18727/0722-6691/5121
project
4MOST - massive spectroscopic surveys of the Milky Way and the Universe
language
English
LU publication?
yes
id
67f889a2-e81c-4198-8cba-6aa96f35ead1
date added to LUP
2020-05-14 12:57:09
date last changed
2023-08-24 14:04:36
@article{67f889a2-e81c-4198-8cba-6aa96f35ead1,
  abstract     = {{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.}},
  author       = {{Christleib, Norbert and Battistini, Chiara and Bonifacio, P and Caffau, E. and Ludwig, Hans-Günter and Asplund, M. and Barklem, Paul and Bergemann, Maria and Church, Ross and Feltzing, Sofia and Ford, Dominic and Grebel, E. K. and Hansen, C. J. and Helmi, Amina and Kordopatis, Georges and Kovalev, Mikhail and Korn, Andreas and Lind, Karin and Quirrenbach, A. and Rybizki, J. and Skúladóttir, A and Starkenburg, E.}},
  issn         = {{0722-6691}},
  language     = {{eng}},
  pages        = {{26--29}},
  publisher    = {{The European Southern Observatory}},
  series       = {{Messenger}},
  title        = {{4MOST Consortium Survey 2: The Milky Way Halo High-Resolution Survey}},
  url          = {{http://dx.doi.org/10.18727/0722-6691/5121}},
  doi          = {{10.18727/0722-6691/5121}},
  volume       = {{175}},
  year         = {{2019}},
}