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The Geneva-Copenhagen Survey of the Solar Neighbourhood

Nordström, Birgitta LU ; Andersen, J.; Holmberg, J.; Jørgensen, Bjarne Rosenkilde LU ; Mayor, M. and Pont, F. (2004) In Publications Astronomical Society of Australia 21(2). p.129-133
Abstract
We report on a new survey of metallicities, ages, and Galactic orbitsfor a complete, magnitude-limited, and kinematically unbiased all-skysample of 16682 nearby F- and G-dwarfs. Our~63000 new, accurate radialvelocities for nearly 13500 of the stars, combined with Hipparcosparallaxes and Tycho-2 proper motions, complete the kinematic data for14139 stars and allow us to identify most of the binary stars in thesample. Isochrone ages have been determined whenever reliable resultsare possible, with particular attention to realistic error estimates.Among the basic properties of the Galactic disk that can bereinvestigated from our data are the metallicity distribution ofG-dwarfs and the age-metallicity and age-velocity relations of the... (More)
We report on a new survey of metallicities, ages, and Galactic orbitsfor a complete, magnitude-limited, and kinematically unbiased all-skysample of 16682 nearby F- and G-dwarfs. Our~63000 new, accurate radialvelocities for nearly 13500 of the stars, combined with Hipparcosparallaxes and Tycho-2 proper motions, complete the kinematic data for14139 stars and allow us to identify most of the binary stars in thesample. Isochrone ages have been determined whenever reliable resultsare possible, with particular attention to realistic error estimates.Among the basic properties of the Galactic disk that can bereinvestigated from our data are the metallicity distribution ofG-dwarfs and the age-metallicity and age-velocity relations of the solarneighbourhood. We confirm the lack of metal-poor G-dwarfs relative toclassical model predictions (the `G-dwarf problem'), the near-constancyof the mean metallicity since the formation of the thin disk, and theappearance of the kinematic signature of the thick disk ~ 10Gyr ago. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Galaxy: solar neighbourhood, Galaxy: disk, Galaxy: kinematics and dynamics, Galaxy: evolution
in
Publications Astronomical Society of Australia
volume
21
issue
2
pages
129 - 133
publisher
CSIRO Publishing
external identifiers
  • wos:000236550300005
  • scopus:32544460454
ISSN
1448-6083
DOI
10.1071/AS04013
language
English
LU publication?
yes
id
3a4926cc-e4e4-47a3-bb78-185d9a03e34a (old id 134214)
date added to LUP
2007-07-13 14:34:39
date last changed
2017-01-01 04:32:51
@article{3a4926cc-e4e4-47a3-bb78-185d9a03e34a,
  abstract     = {We report on a new survey of metallicities, ages, and Galactic orbitsfor a complete, magnitude-limited, and kinematically unbiased all-skysample of 16682 nearby F- and G-dwarfs. Our~63000 new, accurate radialvelocities for nearly 13500 of the stars, combined with Hipparcosparallaxes and Tycho-2 proper motions, complete the kinematic data for14139 stars and allow us to identify most of the binary stars in thesample. Isochrone ages have been determined whenever reliable resultsare possible, with particular attention to realistic error estimates.Among the basic properties of the Galactic disk that can bereinvestigated from our data are the metallicity distribution ofG-dwarfs and the age-metallicity and age-velocity relations of the solarneighbourhood. We confirm the lack of metal-poor G-dwarfs relative toclassical model predictions (the `G-dwarf problem'), the near-constancyof the mean metallicity since the formation of the thin disk, and theappearance of the kinematic signature of the thick disk ~ 10Gyr ago.},
  author       = {Nordström, Birgitta and Andersen, J. and Holmberg, J. and Jørgensen, Bjarne Rosenkilde and Mayor, M. and Pont, F.},
  issn         = {1448-6083},
  keyword      = {Galaxy: solar neighbourhood,Galaxy: disk,Galaxy: kinematics and dynamics,Galaxy: evolution},
  language     = {eng},
  number       = {2},
  pages        = {129--133},
  publisher    = {CSIRO Publishing},
  series       = {Publications Astronomical Society of Australia},
  title        = {The Geneva-Copenhagen Survey of the Solar Neighbourhood},
  url          = {http://dx.doi.org/10.1071/AS04013},
  volume       = {21},
  year         = {2004},
}