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Title:
A Consistent Study of Metallicity Evolution at 0.8 < z < 2.6
Authors:
Wuyts, Eva; Kurk, Jaron; Förster Schreiber, Natascha M.; Genzel, Reinhard; Wisnioski, Emily; Bandara, Kaushala; Wuyts, Stijn; Beifiori, Alessandra; Bender, Ralf; Brammer, Gabriel B.; Burkert, Andreas; Buschkamp, Peter; Carollo, C. Marcella; Chan, Jeffrey; Davies, Ric; Eisenhauer, Frank; Fossati, Matteo; Kulkarni, Sandesh K.; Lang, Philipp; Lilly, Simon J.; Lutz, Dieter; Mancini, Chiara; Mendel, J. Trevor; Momcheva, Ivelina G.; Naab, Thorsten; Nelson, Erica J.; Renzini, Alvio; Rosario, David; Saglia, Roberto P.; Seitz, Stella; Sharples, Ray M.; Sternberg, Amiel; Tacchella, Sandro; Tacconi, Linda J.; van Dokkum, Pieter; Wilman, David J.
Affiliation:
AA(Max-Planck-Institut für extraterrestrische Physik, Giessenbachstr. 1, D-85741 Garching, Germany 0000-0002-4105-3315), AB(Max-Planck-Institut für extraterrestrische Physik, Giessenbachstr. 1, D-85741 Garching, Germany), AC(Max-Planck-Institut für extraterrestrische Physik, Giessenbachstr. 1, D-85741 Garching, Germany), AD(Max-Planck-Institut für extraterrestrische Physik, Giessenbachstr. 1, D-85741 Garching, Germany; Department of Physics, Le Conte Hall, University of California, Berkeley, CA 94720, USA ; Department of Astronomy, Hearst Field Annex, University of California, Berkeley, CA 94720, USA 0000-0002-2767-9653), AE(Max-Planck-Institut für extraterrestrische Physik, Giessenbachstr. 1, D-85741 Garching, Germany), AF(Max-Planck-Institut für extraterrestrische Physik, Giessenbachstr. 1, D-85741 Garching, Germany), AG(Max-Planck-Institut für extraterrestrische Physik, Giessenbachstr. 1, D-85741 Garching, Germany 0000-0003-3735-1931), AH(Max-Planck-Institut für extraterrestrische Physik, Giessenbachstr. 1, D-85741 Garching, Germany; Universitäts-Sternwarte München, Scheinerstr. 1, D-81679 München, Germany), AI(Max-Planck-Institut für extraterrestrische Physik, Giessenbachstr. 1, D-85741 Garching, Germany; Universitäts-Sternwarte München, Scheinerstr. 1, D-81679 München, Germany 0000-0001-7179-0626), AJ(Space Telescope Science Institute, Baltimore, MD 21218, USA 0000-0003-2680-005X), AK(Universitäts-Sternwarte München, Scheinerstr. 1, D-81679 München, Germany), AL(Max-Planck-Institut für extraterrestrische Physik, Giessenbachstr. 1, D-85741 Garching, Germany), AM(Institute of Astronomy, Department of Physics, Eidgensösische Technische Hochschule, ETH Zürich, CH-8093, Switzerland), AN(Max-Planck-Institut für extraterrestrische Physik, Giessenbachstr. 1, D-85741 Garching, Germany), AO(Max-Planck-Institut für extraterrestrische Physik, Giessenbachstr. 1, D-85741 Garching, Germany), AP(Max-Planck-Institut für extraterrestrische Physik, Giessenbachstr. 1, D-85741 Garching, Germany), AQ(Max-Planck-Institut für extraterrestrische Physik, Giessenbachstr. 1, D-85741 Garching, Germany; Universitäts-Sternwarte München, Scheinerstr. 1, D-81679 München, Germany), AR(Max-Planck-Institut für extraterrestrische Physik, Giessenbachstr. 1, D-85741 Garching, Germany), AS(Max-Planck-Institut für extraterrestrische Physik, Giessenbachstr. 1, D-85741 Garching, Germany), AT(Institute of Astronomy, Department of Physics, Eidgensösische Technische Hochschule, ETH Zürich, CH-8093, Switzerland), AU(Max-Planck-Institut für extraterrestrische Physik, Giessenbachstr. 1, D-85741 Garching, Germany), AV(Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, I-35122 Padova, Italy), AW(Max-Planck-Institut für extraterrestrische Physik, Giessenbachstr. 1, D-85741 Garching, Germany), AX(Department of Astronomy, Yale University, P.O. Box 208101, New Haven, CT 06520-810, USA), AY(Max-Planck Institute for Astrophysics, Karl Schwarzschildstrasse 1, D-85748 Garching, Germany), AZ(Department of Astronomy, Yale University, P.O. Box 208101, New Haven, CT 06520-810, USA), BA(Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, I-35122 Padova, Italy), BB(Max-Planck-Institut für extraterrestrische Physik, Giessenbachstr. 1, D-85741 Garching, Germany 0000-0002-0001-3587), BC(Max-Planck-Institut für extraterrestrische Physik, Giessenbachstr. 1, D-85741 Garching, Germany; Universitäts-Sternwarte München, Scheinerstr. 1, D-81679 München, Germany), BD(Universitäts-Sternwarte München, Scheinerstr. 1, D-81679 München, Germany), BE(Department of Physics, Durham University, Science Laboratories, South Road Durham DH1 3LE, UK), BF(School of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978, Israel), BG(Institute of Astronomy, Department of Physics, Eidgensösische Technische Hochschule, ETH Zürich, CH-8093, Switzerland 0000-0002-8224-4505), BH(Max-Planck-Institut für extraterrestrische Physik, Giessenbachstr. 1, D-85741 Garching, Germany 0000-0002-1485-9401), BI(Department of Astronomy, Yale University, P.O. Box 208101, New Haven, CT 06520-810, USA 0000-0002-8282-9888), BJ(Max-Planck-Institut für extraterrestrische Physik, Giessenbachstr. 1, D-85741 Garching, Germany; Universitäts-Sternwarte München, Scheinerstr. 1, D-81679 München, Germany)
Publication:
The Astrophysical Journal Letters, Volume 789, Issue 2, article id. L40, 6 pp. (2014). (ApJL Homepage)
Publication Date:
07/2014
Origin:
IOP
Astronomy Keywords:
galaxies: evolution, galaxies: high-redshift, infrared: galaxies
DOI:
10.1088/2041-8205/789/2/L40
Bibliographic Code:
2014ApJ...789L..40W

Abstract

We present the correlations between stellar mass, star formation rate (SFR), and the [N II]/Halpha flux ratio as an indicator of gas-phase metallicity for a sample of 222 galaxies at 0.8 < z < 2.6 and log (M */M &sun;) = 9.0-11.5 from the LUCI, SINS/zC-SINF, and KMOS3D surveys. This sample provides a unique analysis of the mass-metallicity relation (MZR) over an extended redshift range using consistent data analysis techniques and a uniform strong-line metallicity indicator. We find a constant slope at the low-mass end of the relation and can fully describe its redshift evolution through the evolution of the characteristic turnover mass where the relation begins to flatten at the asymptotic metallicity. At a fixed mass and redshift, our data do not show a correlation between the [N II]/Halpha ratio and SFR, which disagrees with the 0.2-0.3 dex offset in [N II]/Halpha predicted by the "fundamental relation" between stellar mass, SFR, and metallicity discussed in recent literature. However, the overall evolution toward lower [N II]/Halpha at earlier times does broadly agree with these predictions.

Based on observations obtained at the Very Large Telescope (VLT) of the European Southern Observatory (ESO), Paranal, Chile (ESO program IDs 073.B-9018, 074.A-9011, 075.A-0466, 076.A-0527, 078.A-0660, 079.A-0341, 080.A-0330, 080.A-0339, 080.A-0635, 081.A-0672, 082.A-0396, 083.A-0781, 087.A-0081, 088.A-0202, 088.A-0209, 091.A-0126, 092.A-0082, and 092.A-0091) and at the Large Binocular Telescope (LBT) on Mt. Graham in Arizona. This work is further based on observations taken by the 3D-HST Treasury Program (GO 12177 and 12328) with the NASA/ESA Hubble Space Telescope, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS5-26555.


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