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The SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations at redshift of 0.72 with the DR14 Luminous Red Galaxy Sample
Julian E. Bautista, Mariana Vargas-Magaña, Kyle S. Dawson +16
The extended Baryon Oscillation Spectroscopic Survey (eBOSS) Data Release 14 sample includes 80,118 Luminous Red Galaxies. By combining these galaxies with the high-redshift tail o…
Skies And Universes: Accessing cosmological simulations and theoretical predictions
Anatoly Klypin, Francisco Prada, Johan Comparat
Numerical simulations play a key important role in modern cosmology. Examples are plenty including the cosmic web - large scale structure of the distribution of galaxies in space -…
Stellar population properties for 2 million galaxies from SDSS DR14 and DEEP2 DR4 from full spectral fitting
Johan Comparat, Claudia Maraston, Daniel Goddard +13
We determine the stellar population properties - age, metallicity, dust reddening, stellar mass and the star formation history - for all spectra classified as galaxies that were pu…
The mass-metallicity relations for gas and stars in star-forming galaxies: strong outflow vs variable IMF
Jianhui Lian, Daniel Thomas, Claudia Maraston +4
We investigate the mass-metallicity relations for the gaseous (MZRgas) and stellar components (MZRstar) of local star-forming galaxies based on a representative sample from SDSS DR…
The host dark matter halos of [OII] emitters at 0.5< z< 1.5
V. Gonzalez-Perez, J. Comparat, P. Norberg +7
Emission line galaxies (ELGs) are used in several ongoing and upcoming surveys (SDSS-IV/eBOSS, DESI) as tracers of the dark matter distribution. Using a new galaxy formation model,…
The Fourteenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the extended Baryon Oscillation Spectroscopic Survey and from the second phase of the Apache Point Observatory Galactic Evolution Experiment
Bela Abolfathi, D. S. Aguado, Gabriela Aguilar +344
The fourth generation of the Sloan Digital Sky Survey (SDSS-IV) has been in operation since July 2014. This paper describes the second data release from this phase, and the fourtee…
Morpho-z: improving photometric redshifts with galaxy morphology
John Y. H. Soo, Bruno Moraes, Benjamin Joachimi +10
We conduct a comprehensive study of the effects of incorporating galaxy morphology information in photometric redshift estimation. Using machine learning methods, we assess the cha…
VICS82: the VISTA-CFHT Stripe 82 near-infrared survey
J. E. Geach, Y-T. Lin, M. Makler +14
We present the VISTA-CFHT Stripe 82 (VICS82) survey: a near-infrared (J+Ks) survey covering 150 square degrees of the Sloan Digital Sky Survey (SDSS) equatorial Stripe 82 to an ave…
Clustering of quasars in SDSS-IV eBOSS : study of potential systematics and bias determination
Pierre Laurent, Sarah Eftekharzadeh, Jean-Marc Le Goff +21
We study the first year of the eBOSS quasar sample in the redshift range which includes 68,772 homogeneously selected quasars. We show that the main source of systemati…
The clustering of the SDSS-IV extended Baryon Oscillation Spectroscopic Survey DR14 quasar sample: First measurement of Baryon Acoustic Oscillations between redshift 0.8 and 2.2
Metin Ata, Falk Baumgarten, Julian Bautista +60
We present measurements of the Baryon Acoustic Oscillation (BAO) scale in redshift-space using the clustering of quasars. We consider a sample of 147,000 quasars from the extended…
The SDSS-IV Extended Baryon Oscillation Spectroscopic Survey: final Emission Line Galaxy Target Selection
A. Raichoor, J. Comparat, T. Delubac +22
We describe the algorithm used to select the Emission Line Galaxy (ELG) sample at for the extended Baryon Oscillation Spectroscopic Survey of the Sloan Digital Sky Su…
Accurate mass and velocity functions of dark matter halos
Johan Comparat, Francisco Prada, Gustavo Yepes +1
-body cosmological simulations are an essential tool to understand the observed distribution of galaxies. We use the MultiDark simulation suite, run with the Planck cosmological…