A complete census of Herschel-detected infrared sources within the HST Frontier Fields

TL;DR

This paper compiles a comprehensive catalog of Herschel-detected infrared sources in the HST Frontier Fields, combining multi-wavelength data to analyze dust-obscured star formation and the effects of gravitational lensing.

Contribution

It provides the first complete census of Herschel sources in these clusters, including redshifts, magnification, and intrinsic luminosities, enabling detailed studies of faint, lensed galaxies.

Findings

Catalog of 263 Herschel sources with multi-wavelength counterparts

Identification of over 20 background sub-LIRGs magnified by lensing

Demonstration of the catalog's utility for studying faint, dust-obscured galaxies

Abstract

We present a complete census of all Herschel-detected sources within the six massive lensing clusters of the HST Frontier Fields (HFF). We provide a robust legacy catalogue of 263 sources with Herschel fluxes, primarily based on imaging from the Herschel Lensing Survey (HLS) and PEP/HerMES Key Programmes. We optimally combine Herschel, Spitzer and WISE infrared (IR) photometry with data from HST, VLA and ground-based observatories, identifying counterparts to gain source redshifts. For each Herschel-detected source we also present magnification factor (mu), intrinsic IR luminosity and characteristic dust temperature, providing a comprehensive view of dust-obscured star formation within the HFF. We demonstrate the utility of our catalogues through an exploratory overview of the magnified population, including more than 20 background sub-LIRGs unreachable by Herschel without the assistance gravitational lensing.