Dataset Open Access

RCSED - A Value-Added Reference Catalog of Spectral Energy Distributions of 800,299 Galaxies in 11 Ultraviolet, Optical, and Near-Infrared Bands: Morphologies, Colors, Ionized Gas and Stellar Populations Properties

Chilingarian, Igor; Zolotukhin, Ivan; Katkov, Ivan; Melchior, Anne-Laure; Rubtsov, Evgeniy; Grishin, Kirill

Chernyshov, Maxim; Kilchik, Anton; Sergeev, Alexey; Tihanovich, Roman; Timirgazin, Askar

We present RCSED, the value-added Reference Catalog of Spectral Energy Distributions of galaxies, which contains homogenized spectrophotometric data for 800,299 low and intermediate redshift galaxies (0.007 < z < 0.6) selected from the Sloan Digital Sky Survey spectroscopic sample. Accessible from the Virtual Observatory (VO) and complemented with detailed information on galaxy properties obtained with the state-of-the-art data analysis, RCSED enables direct studies of galaxy formation and evolution during the last 5 Gyr. We provide tabulated color transformations for galaxies of different morphologies and luminosities and analytic expressions for the red sequence shape in different colors. RCSED comprises integrated k-corrected photometry in up-to 11 ultraviolet, optical, and near-infrared bands published by the GALEX, SDSS, and UKIDSS wide-field imaging surveys; results of the stellar population fitting of SDSS spectra including best-fitting templates, velocity dispersions, parameterized star formation histories, and stellar metallicities computed for instantaneous starburst and exponentially declining star formation models; parametric and non-parametric emission line fluxes and profiles; and gas phase metallicities. We link RCSED to the Galaxy Zoo morphological classification and galaxy bulge+disk decomposition results by Simard et al. We construct the color-magnitude, Faber-Jackson, mass-metallicity relations, compare them with the literature and discuss systematic errors of galaxy properties presented in our catalog. RCSED is accessible from the project web-site and via VO simple spectrum access and table access services using VO compliant applications. We describe several SQL query examples against the database. Finally, we briefly discuss existing and future scientific applications of RCSED and prospectives for the catalog extension to higher redshifts and different wavelengths.

To appear in The Astrophysical Journal Supplement. See the catalog website at
Files (2.5 GB)
Name Size
rcsed.fits md5:722c6ccf11f928daac7058e7eec642e5 219.3 MB Download
rcsed_fibermags.fits md5:11ccefb0aa2c506be58f9ef7f64c51a6 112.1 MB Download
rcsed_gasmet.fits md5:1d3b164e75dd233f1c88d25ac3644f8e 25.1 MB Download
rcsed_lines_gauss.fits md5:d6223b449fc6977089544c33b04cf204 727.6 MB Download
rcsed_lines_nonpar.fits md5:e6f07ee9fb43fae13b1cbb736ad99c28 713.9 MB Download
rcsed_lines_nonpar_reg.fits md5:24f9d3fd10646cd9b5df38e9b8bf32d2 713.9 MB Download
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