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J/A+A/613/A72         AS1063 and MACS1206-08 datacubes           (Girard+, 2018)

KMOS LENsing Survey (KLENS): Morpho-kinematic analysis of star-forming galaxies at z∼2. Girard M., Dessauges-Zavadsky M., Schaerer D., Cirasuolo M., Turner O.J., Cava A., Rodriguez-Munoz L., Richard J., Perez-Gonzalez P.G. <Astron. Astrophys. 613, A72 (2018)> =2018A&A...613A..72G (SIMBAD/NED BibCode)
ADC_Keywords: Galaxies, spectra ; Gravitational lensing ; Spectra, infrared Keywords: galaxies: high-redshift - galaxies: kinematics and dynamics - galaxies: evolution Abstract: We present results from the KMOS LENsing Survey (KLENS), which is exploiting gravitational lensing to study the kinematics of 24 star-forming galaxies at 1.4<z<3.5 with a median mass of log(M*/M)=9.6 and a median star formation rate (SFR) of 7.5M_☉/yr. We find that 25% of these low mass/low SFR galaxies are rotation-dominated, while the majority of our sample shows no velocity gradient. When combining our data with other surveys, we find that the fraction of rotation-dominated galaxies increases with the stellar mass, and decreases for galaxies with a positive offset from the main sequence (higher specific star formation rate). We also investigate the evolution of the intrinsic velocity dispersion, sigma0, as a function of the redshift, z, and stellar mass, M*, assuming galaxies in quasi-equilibrium (Toomre Q parameter equal to 1). From the z-sigma0 relation, we find that the redshift evolution of the velocity dispersion is mostly expected for massive galaxies (log(M*/M)>10). We derive a M*-sigma0 relation, using the Tully-Fisher relation, which highlights that a different evolution of the velocity dispersion is expected depending on the stellar mass, with lower velocity dispersions for lower masses, and an increase for higher masses, stronger at higher redshift. The observed velocity dispersions from this work and from comparison samples spanning 0<z<3.5 appear to follow this relation, except at higher redshift (z>2), where we observe higher velocity dispersions for low masses (log(M*/M)∼9.6) and lower velocity dispersions for high masses (log(M*/M)∼10.9) than expected. This discrepancy could, for instance, suggest that galaxies at high redshift do not satisfy the stability criterion, or that the adopted parametrization of the specific star formation rate and molecular properties fail at high redshift. Description: We initiated KLENS in 2015 in P95 with the K band Multi Object Spectrograph (KMOS; Sharples et al., 2013Msngr.151...21S). KMOS has 24 arms of 14x14-spaxels. Each spaxel has 0.2"x0.2", which gives a global field of view of 2.8"x2.8" for each arm. Observations were carried out in the H and K bands, which have a typical spectral resolution of R∼4000 and R∼4200, respectively. Each pointing had an exposure time of 300s and we used an object-object-sky-object-object dither pattern. The sky frames were obtained by applying an offset to a clear sky position. The observations were taken in good conditions with a seeing around 0.6" in the H and K bands. The total on-source exposure time in the H band were 2.3h for both clusters. In the K band, the targets were observed during 8h and 10h on-source for MACS1206-08 and AS1063, respectively. Here are the reduced data fits files of the galaxies presented in the paper. Objects: ------------------------------------------------------- RA (2000) DE Designation(s) ------------------------------------------------------- 22 48 54.3 -44 31 07 AS1063 = Abell S1063 12 06 12.2 -08 48 02 MACS1206-08 = MCS J1206.2-0847 ------------------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file list.dat 192 26 *List of fits datacubes fits/* 0 26 Indifidual fits datacubes
Note on list.dat: Each fits has an extension for the data and noise.
Byte-by-byte Description of file: list.dat
Bytes Format Units Label Explanations
1- 9 F9.5 deg RAdeg Right Ascension of center (J2000) 10- 18 F9.5 deg DEdeg Declination of center (J2000) 20- 21 I2 --- Nx Number of pixels along X-axis 23- 24 I2 --- Ny Number of pixels along Y-axis 26- 29 I4 --- Nz Number of slices 31- 35 F5.3 um blambda [1.425] Lower value of wavelength interval 37- 43 F7.5 um Blambda [1.86678] Upper value of wavelength interval 45- 55 F11.9 um dlambda Resolution 57- 80 A24 --- Observation date (YYYY-MM-DDThh:mm:ss.ssss) 82- 85 I4 Kibyte size %s Size of FITS file 87-122 A36 --- Title Title of the FITS file 124-192 A69 --- FileName Name of FITS file, in subdirectory fits
Acknowledgements: Marianne Girard, Marianne.Girard(at) Geneva Observatory, Switzerland
(End) M. Girard [Geneva Obs., Switzerland], P. Vannier [CDS] 01-Jun-2018
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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