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Title:
The Radial Velocity Experiment (rave): Second Data Release
Authors:
Zwitter, T.; Siebert, A.; Munari, U.; Freeman, K. C.; Siviero, A.; Watson, F. G.; Fulbright, J. P.; Wyse, R. F. G.; Campbell, R.; Seabroke, G. M.; Williams, M.; Steinmetz, M.; Bienaymé, O.; Gilmore, G.; Grebel, E. K.; Helmi, A.; Navarro, J. F.; Anguiano, B.; Boeche, C.; Burton, D.; Cass, P.; Dawe, J.; Fiegert, K.; Hartley, M.; Russell, K.; Veltz, L.; Bailin, J.; Binney, J.; Bland-Hawthorn, J.; Brown, A.; Dehnen, W.; Evans, N. W.; Re Fiorentin, P.; Fiorucci, M.; Gerhard, O.; Gibson, B.; Kelz, A.; Kujken, K.; Matijevič, G.; Minchev, I.; Parker, Q. A.; Peñarrubia, J.; Quillen, A.; Read, M. A.; Reid, W.; Roeser, S.; Ruchti, G.; Scholz, R.-D.; Smith, M. C.; Sordo, R.; Tolstoi, E.; Tomasella, L.; Vidrih, S.; Wylie-de Boer, E.
Affiliation:
AA(University of Ljubljana, Faculty of Mathematics and Physics, Ljubljana, Slovenia ), AB(Astrophysikalisches Institut Potsdam, Potsdam, Germany ; Observatoire de Strasbourg, Strasbourg, France ), AC(INAF, Osservatorio Astronomico di Padova, Sede di Asiago, Italy ), AD(RSAA, Australian National University, Canberra, Australia ), AE(INAF, Osservatorio Astronomico di Padova, Sede di Asiago, Italy ), AF(Anglo Australian Observatory, Sydney, Australia ), AG(Johns Hopkins University, Baltimore, MD, USA ), AH(Johns Hopkins University, Baltimore, MD, USA ), AI(Astrophysikalisches Institut Potsdam, Potsdam, Germany ; Macquarie University, Sydney, Australia ), AJ(Institute of Astronomy, University of Cambridge, UK ; e2v Centre for Electronic Imaging, School of Engineering and Design, Brunel University, Uxbridge, UK ), AK(Astrophysikalisches Institut Potsdam, Potsdam, Germany ; RSAA, Australian National University, Canberra, Australia ), AL(Astrophysikalisches Institut Potsdam, Potsdam, Germany ), AM(Observatoire de Strasbourg, Strasbourg, France ), AN(Institute of Astronomy, University of Cambridge, UK ), AO(Astronomisches Rechen-Institut, Center for Astronomy of the University of Heidelberg, Heidelberg, Germany ), AP(Kapteyn Astronomical Institute, University of Groningen, Groningen, The Netherlands ), AQ(University of Victoria, Victoria, Canada ), AR(Astrophysikalisches Institut Potsdam, Potsdam, Germany ), AS(Astrophysikalisches Institut Potsdam, Potsdam, Germany ), AT(Anglo Australian Observatory, Sydney, Australia ), AU(Anglo Australian Observatory, Sydney, Australia ), AV(Anglo Australian Observatory, Sydney, Australia ; Deceased.), AW(Anglo Australian Observatory, Sydney, Australia ), AX(Anglo Australian Observatory, Sydney, Australia ), AY(Anglo Australian Observatory, Sydney, Australia ), AZ(Astrophysikalisches Institut Potsdam, Potsdam, Germany ; Observatoire de Strasbourg, Strasbourg, France ), BA(Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Hawthorn, Australia ), BB(Rudolf Pierls Center for Theoretical Physics, University of Oxford, UK ), BC(Institute of Astronomy, School of Physics, University of Sydney, NSW 2006, Australia ), BD(Sterrewacht Leiden, University of Leiden, Leiden, The Netherlands ), BE(University of Leicester, Leicester, UK ), BF(Institute of Astronomy, University of Cambridge, UK ), BG(University of Ljubljana, Faculty of Mathematics and Physics, Ljubljana, Slovenia ), BH(INAF, Osservatorio Astronomico di Padova, Sede di Asiago, Italy ), BI(MPI für extraterrestrische Physik, Garching, Germany ), BJ(University of Central Lancashire, Preston, UK ), BK(Astrophysikalisches Institut Potsdam, Potsdam, Germany ), BL(Kapteyn Astronomical Institute, University of Groningen, Groningen, The Netherlands ), BM(University of Ljubljana, Faculty of Mathematics and Physics, Ljubljana, Slovenia ), BN(University of Rochester, Rochester NY, USA ), BO(Macquarie University, Sydney, Australia ), BP(University of Victoria, Victoria, Canada ), BQ(University of Rochester, Rochester NY, USA ), BR(University of Edinburgh, Edinburgh, UK ), BS(Macquarie University, Sydney, Australia ), BT(Astronomisches Rechen-Institut, Center for Astronomy of the University of Heidelberg, Heidelberg, Germany ), BU(Johns Hopkins University, Baltimore, MD, USA ), BV(Astrophysikalisches Institut Potsdam, Potsdam, Germany ), BW(Institute of Astronomy, University of Cambridge, UK ), BX(INAF, Osservatorio Astronomico di Padova, Sede di Asiago, Italy ), BY(Kapteyn Astronomical Institute, University of Groningen, Groningen, The Netherlands ), BZ(INAF, Osservatorio Astronomico di Padova, Sede di Asiago, Italy ), CA(University of Ljubljana, Faculty of Mathematics and Physics, Ljubljana, Slovenia ; Institute of Astronomy, University of Cambridge, UK ; Astronomisches Rechen-Institut, Center for Astronomy of the University of Heidelberg, Heidelberg, Germany ), CB(RSAA, Australian National University, Canberra, Australia )
Publication:
The Astronomical Journal, Volume 136, Issue 1, pp. 421-451 (2008). (AJ Homepage)
Publication Date:
07/2008
Origin:
IOP
AJ Keywords:
catalogs, stars: fundamental parameters, surveys
DOI:
10.1088/0004-6256/136/1/421
Bibliographic Code:
2008AJ....136..421Z

Abstract

We present the second data release of the Radial Velocity Experiment (RAVE), an ambitious spectroscopic survey to measure radial velocities and stellar atmosphere parameters (temperature, metallicity, surface gravity, and rotational velocity) of up to one million stars using the 6 dF multi-object spectrograph on the 1.2 m UK Schmidt Telescope of the Anglo-Australian Observatory (AAO). The RAVE program started in 2003, obtaining medium resolution spectra (median R = 7500) in the Ca-triplet region (8410-8795 Å) for southern hemisphere stars drawn from the Tycho-2 and SuperCOSMOS catalogues, in the magnitude range 9 < I < 12. Following the first data release, the current release doubles the sample of published radial velocities, now containing 51,829 radial velocities for 49,327 individual stars observed on 141 nights between 2003 April 11 and 2005 March 31. Comparison with external data sets shows that the new data collected since 2004 April 3 show a standard deviation of 1.3 km s-1, about twice as good as for the first data release. For the first time, this data release contains values of stellar parameters from 22,407 spectra of 21,121 individual stars. They were derived by a penalized χ2 method using an extensive grid of synthetic spectra calculated from the latest version of Kurucz stellar atmosphere models. From comparison with external data sets, our conservative estimates of errors of the stellar parameters for a spectrum with an average signal-to-noise ratio (S/N) of ~40 are 400 K in temperature, 0.5 dex in gravity, and 0.2 dex in metallicity. We note however that, for all three stellar parameters, the internal errors estimated from repeat RAVE observations of 855 stars are at least a factor 2 smaller. We demonstrate that the results show no systematic offsets if compared to values derived from photometry or complementary spectroscopic analyses. The data release includes proper motions from Starnet2, Tycho-2, and UCAC2 catalogs and photometric measurements from Tycho-2 USNO-B, DENIS, and 2MASS. The data release can be accessed via the RAVE Web site: http://www.rave-survey.org and through CDS.

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