J/A+A/666/A121 Cluster target Giraffe HR15N RV precision (Randich+, 2022)
The Gaia-ESO Public Spectroscopic Survey:
implementation, data products, open cluster survey, science and legacy.
Randich S., Gilmore G., Magrini L., Sacco G.G., Jackson R.J., Jeffries R.D.,
Worley C.C, Hourihane A., Gonneau A., Viscasillas Vazquez C.,
Franciosini E., Lewis J.R., Alfaro E.J., Allende Prieto C., Bensby T.,
Blomme R., Bragaglia A., Flaccomio E., Francois P., Irwin M.J.,
Koposov S.E., Korn A.J., Lanzafame A.C., Pancino E., Recio-Blanco A.,
Smiljanic R., Van Eck S., Zwitter T., Asplund M., Bonifacio P., Feltzing S.,
Binney J., Drew J., Ferguson A.M.N., Micela G., Negueruela I., Prusti T.,
Rix H.-W., Vallenari A., Bayo A., Bergemann M., Biazzo K., Carraro G.,
Casey A.R., Damiani F., Frasca A., Heiter U., Hill V., Jofre P.,
de Laverny P., Lind K., Marconi G., Martayan C., Masseron T., Monaco L.,
Morbidelli L., Prisinzano L., Sbordone L., Sousa S.G., Zaggia S.,
Adibekyan V., Bonito R., Caffau E., Daflon S., Feuillet D.K., Gebran M.,
Gonzalez Hernandez J.I., Guiglion G., Herrero A., Lobel A.,
Maiz Apellaniz J., Merle T., Mikolaitis S., Montes D., Morel T.,
Soubiran C., Spina L., Tabernero H.M., Tautvaisiene G., Traven G.,
Valentini M., Van der Swaelmen M., Villanova S., Wright N.J., Abbas U.,
Aguirre Borsen-Koch V., Alves J., Balaguer-Nunez L., Barklem P.S.,
Barrado D., Berlanas S.R., Binks A.S., Bressan A., Capuzzo-Dolcetta R.,
Casagrande L., Casamiquela L., Collins R.S., D'Orazi V., Dantas M.L.L.,
Debattista V.P., Delgado-Mena E., Di Marcantonio P., Drazdauskas A.,
Evans N.W., Famaey B., Franchini M., Fremat Y., Friel E.D., Fu X.,
Geisler D., Gerhard O., Gonzalez Solares E.A., Grebel E.K.,
Gutierrez Albarran M.L., Hatzidimitriou D., Held E.V., Jimenez-Esteban F.,
Joensson H., Jordi C., Khachaturyants T., Kordopatis G., Kos J., Lagarde N.,
Mahy L., Mapelli M., Marfil E., Martell S.L., Messina S., Miglio A.,
Minchev I., Moitinho A., Montalban J., Monteiro M.J.P.F.G., Morossi C.,
Mowlavi N., Mucciarelli A., Murphy D.N.A., Nardetto N., Ortolani S.,
Paletou F., Palous J., Paunzen E., Pickering J.C., Quirrenbach A.,
Re Fiorentin P., Read J.I., Romano D., Ryde N., Sanna N., Santos W.,
Seabroke G.M., Spagna A., Steinmetz M., Stonkute E., Sutorius E.,
Thevenin F., Tosi M., Tsantaki M., Vink J.S., Wright N., Wyse R.F.G.,
Zoccali M., Zorec J., Zucker D.B, Walton N.A.
<Astron. Astrophys. 666, A121 (2022)>
=2022A&A...666A.121R 2022A&A...666A.121R (SIMBAD/NED BibCode)
ADC_Keywords: Surveys ; Clusters, open ; Radial velocities ; Optical
Keywords: surveys - catalogs - techniques: spectroscopic -
stars: fundamental parameters - stars: abundances -
open clusters and associations: general
Abstract:
In the last 15 years different ground-based spectroscopic surveys have
been started (and completed) with the general aim to deliver stellar
parameters and elemental abundances for large samples of Galactic
stars, complementing Gaia astrometry. Among those surveys, the
Gaia-ESO Public Spectroscopic Survey, the only one performed on a 8m
class telescope, was designed to target 100000 stars using FLAMES on
the ESO VLT (both Giraffe and UVES spectrographs), covering all the
Milky Way populations, with a special focus on open star clusters.
This article aims to provide an overview of the Survey implementation
(observations, data quality, analysis and its success, data products
and releases), of the open cluster survey, of the science results and
potential, and of the survey legacy. A companion article (Gilmore et
al., 2022A&A...666A.120G 2022A&A...666A.120G) reviews the overall Survey motivation,
strategy, Giraffe pipeline data reduction, organisation and workflow.
We make use of the information recorded and archived in: the observing
blocks; during the observing runs; in a number of relevant documents;
in the spectra and master catalogue of spectra; in the parameters
delivered by the analysis nodes and the working groups; in the final
catalogue; in the science papers. Based on these, we critically
analyse and discuss the output and products of the Survey, including
science highlights. We also determined the average metallicities of
the open clusters observed as science targets and of a sample of
clusters whose spectra were retrieved from the ESO archive. The
Gaia-ESO survey has determined homogeneous, good quality radial
velocities and stellar parameters for a large fraction of its more
than 110000 unique target stars. Elemental abundances were derived
for up to 32 elements for targets observed with UVES. Lithium
abundances are delivered for about 1/3 of the sample. The analysis and
homogenisation strategies have proven to be successful; several
science topics have been addressed by the Gaia-ESO consortium and the
community, with many highlight results achieved.
Description:
Table B5 lists the open cluster target stars observed with the HR15N
setting, the radial velocity precision, and different parameters. The
precision was determined as described in Appendix B of the paper.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tableb5.dat 121 37930 Radial velocity precision
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Byte-by-byte Description of file: tableb5.dat
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Bytes Format Units Label Explanations
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1- 16 A16 --- CName Target name (HHMMSSss+DDMMSSs)
18- 27 A10 --- Cluster Cluster name
29- 37 F9.4 K Tprec Teff used to calculate RV precision
39- 48 F10.4 --- Res Spectral resolution
50- 58 F9.4 --- SNR ?=-999.0000 Signal-to-noise-ratio
60- 69 F10.5 km/s RV Radial velocity
71- 75 F5.1 km/s Vsini Projected equatorial velocity used
to calculate precision
77 I1 --- Nstack Number of stacked exposures
79- 90 F12.8 km/s A Precision parameter A
92-100 F9.7 km/s B Precision parameter B
102-111 F10.7 km/s C Precision parameter C
113-121 F9.5 km/s RVprec ?=999 Radial velocity precision
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Acknowledgements:
Sofia Randich, sofia.randich(at)inaf.it
(End) S. Randich [INAF/Arcetri Obs., Italy], P. Vannier [CDS] 02-May-2022