The KMOS3D Survey: Data Release and Final Survey Paper

Wisnioski, E.; Schreiber, N. M. Foerster; Fossati, M.; Mendel, J. T.; Wilman, D.; Genzel, R.; Bender, R.; Wuyts, S.; Davies, R. L.; Uebler, H.; Bandara, K.; Beifiori, A.; Belli, S.; Brammer, G.; Chan, J.; Davies, R.; Fabricius, M.; Galametz, A.; Lang, P.; Lutz, D.; Nelson, E. J.; Momcheva, I; Price, S.; Rosario, D.; Saglia, R.; Seitz, S.; Shimizu, T.; Tacconi, L. J.; Tadaki, K.; van Dokkum, P. G. und Wuyts, E. (2019): The KMOS3D Survey: Data Release and Final Survey Paper. In: Astrophysical Journal, Bd. 886, Nr. 2, 124

Abstract

We present the completed KMOS3D survey, an integral field spectroscopic survey of 739 log(M-star/M-circle dot) > 9 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 H alpha, [N II], and [S II].emission lines. We detect Ha 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-circle dot yr(-1), as well as to resolve 81% of detected galaxies with >= 3 resolution elements along the kinematic major axis. The detection fraction of H alpha 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 Ha and UV+IR star formation rates reveal that dust attenuation corrections may be underestimated by 0.5 dex at the highest masses (log(M-star/M-circle dot) > 10.5). We confirm our first year results of a high rotation-dominated fraction (monotonic velocity gradient and v(rot)/sigma(0) > root 3.36) 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 log(M-star/M-circle dot) < 10.5. With this paper, we include a final data release of all 739.observed objects (http://www.mpe.mpg.de/ir/KMOS3D).

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Physik
• Themengebiete: 500 Naturwissenschaften und Mathematik > 530 Physik
• ISSN: 0004-637X
• Sprache: Englisch