THE SINS/zC-SINF SURVEY OF z ∼ 2 GALAXY KINEMATICS: REST-FRAME MORPHOLOGY, STRUCTURE, AND COLORS FROM NEAR-INFRARED HUBBLE SPACE TELESCOPE IMAGING

• Published in: The Astrophysical journal Vol. 802; no. 2; pp. 1 - 32
• Main Authors: Tacchella, S, Lang, P, Carollo, C M, Schreiber, N M Forster, Renzini, A, Shapley, A E, Wuyts, S, Cresci, G, Genzel, R, Lilly, S J
• Format: Journal Article
• Language: English
• Published: United Kingdom 01.04.2015
• Subjects: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; COSMIC DUST; DISTANCE; DISTRIBUTION; GALACTIC EVOLUTION; GALAXIES; Hubble Space Telescope; Imaging; Integral field spectroscopy; Kinematics; MASS; Morphology; NEAR INFRARED RADIATION; RED SHIFT; RESOLUTION; SPACE; SPECTROSCOPY; Star formation; STARS; Stellar mass; TELESCOPES
• ISSN: 1538-4357; 0004-637X; 1538-4357
• DOI: 10.1088/0004-637X/802/2/101

We present the analysis of Hubble Space Telescope (HST) J- and H-band imaging for 29 galaxies on the star-forming main sequence at z ~ 2, which have adaptive optics Very Large Telescope SINFONI integral field spectroscopy from our SINS/zC-SINF program. The SINFONI H alpha data resolve the ongoing star formation and the ionized gas kinematics on scales of 1-2 kpc; the near-IR images trace the galaxies' rest-frame optical morphologies and distributions of stellar mass in old stellar populations at a similar resolution. The global light profiles of most galaxies show disk-like properties well described by a single Sersic profile with n ~ 1, with only ~ 15% requiring a high n > 3 Sersic index, all more massive than 10 super(10) M sub([middot in circle]). This is attributed to differences in sample selection and definitions of size and/or mass measurements.