Velocity and abundance precisions for future high-resolution spectroscopic surveys:a study for 4MOST

Caffau, E. and Koch, A. and Sbordone, L. and Sartoretti, P. and Hansen, C. J. and Royer, F. and Leclerc, N. and Bonifacio, P. and Christlieb, N. and Ludwig, H. G. and Grebel, E. K. and Jong, R. S. de and Chiappini, C. and Walcher, J. and Mignot, S. and Feltzing, S. and Cohen, M. and Minchev, I. and Helmi, A. and Piffl, T. and Depagne, E. and Schnurr, O. (2013) Velocity and abundance precisions for future high-resolution spectroscopic surveys:a study for 4MOST. Astronomical Notes / Astronomische Nachrichten, 334 (3). pp. 197-216. ISSN 0004-6337

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In preparation for future, large-scale, multi-object, high-resolution spectroscopic surveys of the Galaxy, we present a series of tests of the precision in radial velocity and chemical abundances that any such project can achieve at a 4m class telescope. We briefly discuss a number of science cases that aim at studying the chemo-dynamical history of the major Galactic components (bulge, thin and thick disks, and halo) - either as a follow-up to the Gaia mission or on their own merits. Based on a large grid of synthetic spectra that cover the full range in stellar parameters of typical survey targets, we devise an optimal wavelength range and argue for a moderately high-resolution spectrograph. As a result, the kinematic precision is not limited by any of these factors, but will practically only suffer from systematic effects, easily reaching uncertainties

Item Type:
Journal Article
Journal or Publication Title:
Astronomical Notes / Astronomische Nachrichten
Additional Information:
20 pages, 5 figures, accepted for publication in Astronomische Nachrichten
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Deposited On:
01 Dec 2016 12:04
Last Modified:
15 Sep 2023 00:31