SSGSS: The Spitzer-SDSS-GALEX Spectroscopic Survey
Introduction
This site is a preliminary portal for the release of data related to the Cycle-3 Spitzer Legacy Program SSGSS: The Spitzer-SDSS-GALEX Spectroscopic Survey. It is intended to provide preliminary information for Spitzer Cycle-4 proposers, primarily in the form of catalogs of parameters for the target galaxies. The AORs for the SSGSS program are also available.
The Spitzer-SDSS-GALEX Spectroscopic Survey is a collection of ultraviolet through infrared imaging and spectroscopy for a representative sample of 100 galaxies in the nearby universe. The galaxies have been uniformly selected from the SDSS survey in the Lockman Hole region, where Spitzer imaging is already vaailable from the SWIRE survey. This uniform selection will enable a statistically meaningful comparison of the multiwavelength properties of galaxies, including AGN activity, star-formation, and dust absorption and emission.
NUV-3.6 color vs. stellar mass and NUV-3.6 vs. Dn(4000) for Lockman Hole sample galaxies. Sample cut at 1.5 mJy (and 5 mJy for bright sample) yields a large number of galaxies with a representative distribution of mass, color, SFH out to z < 0.2.
NUV-H color vs. stellar mass and Spitzer IRS low-resolution spectroscopy for a subset of 22 local SINGS galaxies with a broad distribution of color and mass. Spectra are ordered by increasing color (blue to red) and show a range of molecular band and fine structure line emission.
SEDs of the sample galaxies from which the SSGSS was extracted, binned by galaxy parameters and averaged.
