Value Added Catalogs

In addition to the primary SDSS photometry and spectroscopy, there are a few extra catalogs created by our collaborators that are distributed through the SAS. These Value-Added Catalogs (VACs) are listed below, and include catalogs that were released in earlier data releases.

Firefly Stellar Population Models of SDSS and eBOSS galaxy spectra

Scientific Analysis Catalog

Catalog of stellar population properties of eBOSS and SDSS galaxies, as measured by the FIREFLY spectral fitting code

Johan Comparat, Claudia Maraston et al.

Catalog Data

This dataset appears in DR16 SkyServer and CasJobs in the following tables:


We measure the stellar population properties (ages, metallicities, dust reddening, stellar masses and star formation histories) for all spectra classified as galaxies that were published by the Sloan Digital Sky Survey (data release 16) or by the DEEP2 galaxy surveys. We perform full spectral fitting (using FIREFLY) on the individual spectra with high spectral resolution stellar population models. We publish catalogs of properties as well as model spectra of the continuum of these galaxies as a value added catalog to the sixteenth data release of the Sloan Digital Sky Survey. We recommend that you also use the latest updated catalog (DR16, v1_1_0), but the preceding DR14 version of the eBOSS Firefly value added catalog is still available. This catalog (v1_0_4) can be found on the SAS here, with its datamodel available here.

Catalog last modified: 2021-12-06 07:36:54

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