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The Gaia-ESO Survey...
The Gaia-ESO Survey: Empirical determination of the precision of stellar radial velocities and projected rotation velocities
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- Jackson, R. J. (author)
- Keele Univ, Astrophys Grp, Keele ST5 5BG, Staffs, England.
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- Jeffries, R. D. (author)
- Keele Univ, Astrophys Grp, Keele ST5 5BG, Staffs, England.
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- Lewis, J. (author)
- Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England.
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show more...
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- Koposov, S. E. (author)
- Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England.;Moscow MV Lomonosov State Univ, Sternberg Astron Inst, Moscow 119992, Russia.
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- Sacco, G. G. (author)
- Osserv Astrofis Arcetri, INAF, I-50125 Florence, Italy.,Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England.,Univ Porto, CAUP, Inst Astrofis & Ciencias Espaco, P-4150762 Oporto, Portugal.
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- Randich, S. (author)
- Osserv Astrofis Arcetri, INAF, I-50125 Florence, Italy.,Nicholas Copernicus Univ, Dept Astrophys, PL-87100 Torun, Poland.
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- Gilmore, G. (author)
- Osserv Astron Palermo, INAF, I-90134 Palermo, Italy.,European So Observ, Santiago 19, Chile.
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- Asplund, M. (author)
- Australian Natl Univ, Res Sch Astron & Astrophys, Weston, ACT 2611, Australia.,Univ Edinburgh, Inst Astron, Edinburgh EH9 3HJ, Midlothian, Scotland.
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- Binney, J. (author)
- Rudolf Peierls Ctr Theoret Phys, Oxford OX1 3NP, England.
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- Bonifacio, P. (author)
- Univ Paris Diderot, CNRS, Observ Paris, GERI, F-92190 Meudon, France.
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- Drew, J. E. (author)
- Univ Hertfordshire, STRI, Ctr Astrophys Res, Hatfield AL10 9AB, Herts, England.
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- Feltzing, Sofia (author)
- Lund University,Lunds universitet,Astronomi - Genomgår omorganisation,Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation,Naturvetenskapliga fakulteten,Lund Observatory - Undergoing reorganization,Department of Astronomy and Theoretical Physics - Undergoing reorganization,Faculty of Science,Lund Observ, Dept Astron & Theoret Phys, S-22100 Lund, Sweden.
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Ferguson, A. M. N. (author)
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Micela, G. (author)
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- Neguerela, I. (author)
- Univ Alicante, Dept Fis Ingn Sistemas & Teor Senal, E-03080 Alicante, Spain.
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- Prusti, T. (author)
- European Space Agcy, Estec, NL-2200 AG Noordwijk, Netherlands.
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Rix, H. -W. (author)
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- Vallenari, A. (author)
- INAF Padova Observ, I-35122 Padua, Italy.
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- Alfaro, E. J. (author)
- CSIC, Inst Astrofis Andalucia, E-18080 Granada, Spain.
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- Prieto, C. Allende (author)
- Inst Astrofis Canarias, Tenerife 38205, Spain.;Univ La Laguna, Dept Astrofis, E-38206 Tenerife, Spain.
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- Babusiaux, C. (author)
- Univ Paris Diderot, CNRS, Observ Paris, GERI, F-92190 Meudon, France.
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- Bensby, Thomas (author)
- Lund University,Lunds universitet,Astronomi - Genomgår omorganisation,Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation,Naturvetenskapliga fakulteten,Lund Observatory - Undergoing reorganization,Department of Astronomy and Theoretical Physics - Undergoing reorganization,Faculty of Science,Lund Observ, Dept Astron & Theoret Phys, S-22100 Lund, Sweden.
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- Blomme, R. (author)
- Observ Royal Belgique, B-1180 Brussels, Belgium.
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- Bragaglia, A. (author)
- Osservatorio Astron Bologna, INAF, I-40127 Bologna, Italy.
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- Flaccomio, E. (author)
- Osserv Astron Palermo, INAF, I-90134 Palermo, Italy.
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- Francois, P. (author)
- Univ Paris Diderot, CNRS, Observ Paris, GERI, F-92190 Meudon, France.
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- Hambly, N. (author)
- Univ Edinburgh, Inst Astron, Edinburgh EH9 3HJ, Midlothian, Scotland.
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- Irwin, M. (author)
- Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England.
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- Korn, Andreas J., 1972- (author)
- Uppsala universitet,Observationell astrofysik
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- Lanzafame, A. C. (author)
- Univ Catania, Sez Astrofis, Dipartimento Fis & Astron, I-95123 Catania, Italy.
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- Pancino, E. (author)
- Osservatorio Astron Bologna, INAF, I-40127 Bologna, Italy.;ASI Sci Data Ctr, I-00133 Rome, Italy.
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- Recio-Blanco, A. (author)
- Univ Nice Sophia Antipolis, Observ Cote Azur, CNRS, Lab Lagrange,UMR 7293, F-06304 Nice 4, France.
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Smiljanic, R. (author)
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- Van Eck, S. (author)
- Univ Libre Bruxelles, Inst Astron & Astrophys, B-1050 Brussels, Belgium.
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- Walton, N. (author)
- Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England.
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- Bayo, A. (author)
- Univ Valparaiso, Inst Fis & Astron, Valparaiso, Chile.
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- Bergemann, M. (author)
- Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England.
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Carraro, G. (author)
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- Costado, M. T. (author)
- CSIC, Inst Astrofis Andalucia, E-18080 Granada, Spain.,European So Observ, Santiago 19, Chile.,Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England.
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- Damiani, F. (author)
- Osserv Astron Palermo, INAF, I-90134 Palermo, Italy.
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- Edvardsson, Bengt (author)
- Uppsala universitet,Teoretisk astrofysik
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- Franciosini, E. (author)
- Osserv Astrofis Arcetri, INAF, I-50125 Florence, Italy.
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- Frasca, A. (author)
- Osserv Astrofis Catania, INAF, I-95123 Catania, Italy.
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- Heiter, Ulrike (author)
- Uppsala universitet,Observationell astrofysik
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- Hill, V. (author)
- Univ Nice Sophia Antipolis, Observ Cote Azur, CNRS, Lab Lagrange,UMR 7293, F-06304 Nice 4, France.
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- Hourihane, A. (author)
- Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England.
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- Jofre, P. (author)
- Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England.
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- Lardo, C. (author)
- Liverpool John Moores Univ, Astrophys Res Inst, Liverpool L3 5RF, Merseyside, England.
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- de Laverny, P. (author)
- Univ Nice Sophia Antipolis, Observ Cote Azur, CNRS, Lab Lagrange,UMR 7293, F-06304 Nice 4, France.,Osserv Astron Palermo, INAF, I-90134 Palermo, Italy.
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- Lind, Karin (author)
- Uppsala universitet,Observationell astrofysik
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- Magrini, L. (author)
- Osserv Astrofis Arcetri, INAF, I-50125 Florence, Italy.
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Marconi, G. (author)
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Martayan, C. (author)
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Masseron, T. (author)
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- Monaco, L. (author)
- Univ Andres Bello, Dept Ciencias Fis, Santiago 8370134, Chile.
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- Morbidelli, L. (author)
- Osserv Astrofis Arcetri, INAF, I-50125 Florence, Italy.
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Prisinzano, L. (author)
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- Sbordone, L. (author)
- Millennium Inst Astrophys, Santiago 7820436, Chile.;Pontificia Univ Catolica Chile, Santiago 7820436, Chile.
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Sousa, S. G. (author)
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- Worley, C. C. (author)
- Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England.
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- Zaggia, S. (author)
- INAF Padova Observ, I-35122 Padua, Italy.
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Keele Univ, Astrophys Grp, Keele ST5 5BG, Staffs, England Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England. (creator_code:org_t)
- 2015-08-05
- 2015
- English.
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In: Astronomy & Astrophysics. - : EDP Sciences. - 0004-6361 .- 1432-0746. ; 580
- Related links:
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http://dx.doi.org/10... (free)
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https://www.aanda.or...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Subject headings
Close
- Context. The Gaia-ESO Survey (GES) is a large public spectroscopic survey at the European Southern Observatory Very Large Telescope. Aims. A key aim is to provide precise radial velocities (RVs) and projected equatorial velocities (v sin i) for representative samples of Galactic stars, which will complement information obtained by the Gaia astrometry satellite. Methods. We present an analysis to empirically quantify the size and distribution of uncertainties in RV and v sin i using spectra from repeated exposures of the same stars. Results. We show that the uncertainties vary as simple scaling functions of signal-to-noise ratio (S/N) and v sin i, that the uncertainties become larger with increasing photospheric temperature, but that the dependence on stellar gravity, metallicity and age is weak. The underlying uncertainty distributions have extended tails that are better represented by Student's t-distributions than by normal distributions. Conclusions. Parametrised results are provided, which enable estimates of the RV precision for almost all GES measurements, and estimates of the v sin i precision for stars in young clusters, as a function of S/N, v sin i and stellar temperature. The precision of individual high S/N GES RV measurements is 0.22-0.26 km s(-1), dependent on instrumental configuration.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- stars: kinematics and dynamics
- open clusters and associations: general
- stars: kinematics and dynamics
Publication and Content Type
- art (subject category)
- ref (subject category)
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To the university's database
- By the author/editor
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Jackson, R. J.
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Jeffries, R. D.
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Lewis, J.
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Koposov, S. E.
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Sacco, G. G.
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Randich, S.
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show more...
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Gilmore, G.
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Asplund, M.
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Binney, J.
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Bonifacio, P.
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Drew, J. E.
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Feltzing, Sofia
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Ferguson, A. M. ...
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Micela, G.
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Neguerela, I.
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Prusti, T.
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Rix, H. -W.
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Vallenari, A.
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Alfaro, E. J.
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Prieto, C. Allen ...
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Babusiaux, C.
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Bensby, Thomas
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Blomme, R.
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Bragaglia, A.
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Flaccomio, E.
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Francois, P.
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Hambly, N.
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Irwin, M.
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Korn, Andreas J. ...
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Lanzafame, A. C.
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Pancino, E.
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Recio-Blanco, A.
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Smiljanic, R.
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Van Eck, S.
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Walton, N.
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Bayo, A.
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Bergemann, M.
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Carraro, G.
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Costado, M. T.
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Damiani, F.
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Edvardsson, Beng ...
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Franciosini, E.
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Frasca, A.
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Heiter, Ulrike
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Hill, V.
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Hourihane, A.
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Jofre, P.
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Lardo, C.
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de Laverny, P.
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Lind, Karin
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Magrini, L.
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Marconi, G.
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Martayan, C.
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Masseron, T.
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Monaco, L.
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Morbidelli, L.
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Prisinzano, L.
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Sbordone, L.
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Sousa, S. G.
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Worley, C. C.
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Zaggia, S.
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Astronomy Astrop ...
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Astronomy & Astr ...
- By the university
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Lund University
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Uppsala University