The Spitzer Data Fusion: Contents, Construction and Applications to Galaxy Evolution Studies

TL;DR

The Spitzer Data Fusion compiles extensive multi-wavelength data for millions of extragalactic sources, enabling comprehensive galaxy evolution research across infrared, millimetre, and radio wavelengths.

Contribution

This work introduces a large, integrated database combining Spitzer, Herschel, and radio data, facilitating advanced multi-wavelength galaxy studies.

Findings

Compiled data for 4.4 million sources across 65 deg$^2$

Merged deep warm mission observations covering 18 deg$^2$

Provides a valuable resource for galaxy evolution research

Abstract

We present the Spitzer Data Fusion, a database incorporating far-ultraviolet to far-infrared flux measurements as well as photometric and spectroscopic redshifts for 4.4 million IRAC-selected sources detected over 8 extragalactic fields covering 65 deg$^2$ observed by Spitzer in all IRAC and MIPS bands during its cryogenic mission. Deeper Spitzer observations carried out during its warm mission over 5 sub-fields as part of the SERVS project are also presented and analysed in a similar fashion, detecting 2.8 million IRAC-selected sources over 18 deg$^2$ and merging them with multi-wavelength catalogues within the SERVS Data Fusion. When combined with Herschel SPIRE surveys and radio continuum observations over the same fields, the Spitzer Data Fusion and the SERVS Data Fusion provide an invaluable resource for multi-wavelength galaxy formation and evolution studies at infrared/millimetre/radio wavelengths. The catalogues and their future updates will be released at http://www.mattiavaccari.net/df/ and on CDS/VizieR.