The KMOS3D Survey: Data Release and Final Survey Paper

E. Wisnioski, N. M. Förster Schreiber, M. Fossati, J. T. Mendel, D. Wilman, R. Genzel, R. Bender, S. Wuyts, R. L. Davies, H. Übler, K. Bandara, A. Beifiori, S. Belli, G. Brammer, J. Chan, R. I. Davies, M. Fabricius, A. Galametz, P. Lang, D. LutzE. J. Nelson, I. Momcheva, S. Price, D. Rosario, R. Saglia, S. Seitz, T. Shimizu, L. J. Tacconi, K. Tadaki, P. G. Van Dokkum, E. Wuyts

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We present the completed KMOS3D survey, an integral field spectroscopic survey of 739 galaxies at 0.6 < z < 2.7 using the K-band Multi Object Spectrograph (KMOS) at the Very Large Telescope. The KMOS3D survey provides a population-wide census of kinematics, star formation, outflows, and nebular gas conditions both on and off the star-forming galaxy main sequence through the spatially resolved and integrated properties of Hα, [N ii], and [S ii] emission lines. We detect Hα emission for 91% of galaxies on the main sequence of star formation and 79% overall. The depth of the survey has allowed us to detect galaxies with star formation rates below 1 M o yr-1, as well as to resolve 81% of detected galaxies with ≥3 resolution elements along the kinematic major axis. The detection fraction of Hα is a strong function of both color and offset from the main sequence, with the detected and nondetected samples exhibiting different spectral energy distribution shapes. Comparison of Hα and UV+IR star formation rates reveal that dust attenuation corrections may be underestimated by 0.5 dex at the highest masses (). We confirm our first year results of a high rotation-dominated fraction (monotonic velocity gradient and v rot/ σ0>sqrt3.36) of 77% for the full KMOS3D sample. The rotation-dominated fraction is a function of both stellar mass and redshift, with the strongest evolution measured over the redshift range of the survey for galaxies with . With this paper, we include a final data release of all 739 observed objects (

Original languageEnglish
Article number124
JournalAstrophysical Journal
Issue number2
Early online date28 Nov 2019
Publication statusPublished - 1 Dec 2019

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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