# 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

**Authors:** Igor Chilingarian, Ivan Zolotukhin, Ivan Katkov, Anne-Laure Melchior, Evgeniy Rubtsov, Kirill Grishin  
**arXiv:** [1612.02047](https://arxiv.org/abs/1612.02047)  
**Date:** 2016-12-06  
**Summary page:** https://www.summarizepaper.com/en/paper/1612.02047v1/

## Key points

- RCSED is a database containing spectrophotometric data for 800,299 low and intermediate redshift galaxies (0.007<z<0.6) selected from the Sloan Digital Sky Survey spectroscopic sample.
- The catalog includes detailed information on galaxy properties obtained through state-of-the-art data analysis, enabling direct studies of galaxy formation and evolution during the last 5Gyr.
- RCSED provides tabulated color transformations for galaxies of different morphologies and luminosities, as well as analytic expressions for the red sequence shape in different colors.
- The catalog 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.
- RCSED includes results of 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.
- The catalog also provides parametric and non-parametric emission line fluxes and profiles as well as gas phase metallicities.
- RCSED is linked to Galaxy Zoo morphological classification and galaxy bulge+disk decomposition results by Simard et al., allowing researchers to study galaxy properties across multiple dimensions.
- Color-magnitude relations are constructed in RCSED along with Faber-Jackson mass-metallicity relations that are compared with literature values while discussing systematic errors of galaxy properties presented in our catalog.
- The RCSED database can be accessed via VO simple spectrum access and table access services using VO compliant applications or through their project website.
- Existing scientific applications of RCSED are discussed along with prospects for expanding the catalog to higher redshifts and different wavelengths.

## Summary

RCSED is a comprehensive database that 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. The catalog is complemented with detailed information on galaxy properties obtained through state-of-the-art data analysis, enabling direct studies of galaxy formation and evolution during the last 5Gyr. Accessible from the Virtual Observatory (VO), RCSED provides tabulated color transformations for galaxies of different morphologies and luminosities, as well as analytic expressions for the red sequence shape in different colors. The catalog 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. In addition to photometric data, RCSED includes results of 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. The catalog also provides parametric and non-parametric emission line fluxes and profiles as well as gas phase metallicities. RCSED is linked to Galaxy Zoo morphological classification and galaxy bulge+disk decomposition results by Simard et al., allowing researchers to study galaxy properties across multiple dimensions. Color-magnitude relations are constructed in RCSED along with Faber-Jackson mass-metallicity relations that are compared with literature values while discussing systematic errors of galaxy properties presented in our catalog. The RCSED database can be accessed via VO simple spectrum access and table access services using VO compliant applications or through their project website. Several SQL query examples against the database are described in detail within the paper. Finally, existing scientific applications of RCSED are discussed along with prospects for expanding the catalog to higher redshifts and different wavelengths. Overall, RCSED is a valuable resource for researchers studying galaxy formation and evolution providing a comprehensive dataset of spectral energy distributions and galaxy properties in one convenient location.