HELP-ing Extragalactic Surveys : The Herschel Extragalactic Legacy Project and The Coming of Age of Multi-Wavelength Astrophysics

TL;DR

The Herschel Extragalactic Legacy Project (HELP) aims to unify multi-wavelength astronomical data to better understand galaxy formation and evolution through comprehensive, accessible datasets for the scientific community.

Contribution

This work introduces a large, homogeneous multi-wavelength database combining diverse datasets to facilitate statistical analysis of galaxy evolution.

Findings

Creation of a comprehensive multi-wavelength database covering 1000 deg2

Integration of optical, infrared, and radio data for extragalactic surveys

Enhanced resources for studying galaxy formation and evolution

Abstract

How did galaxies form and evolve? This is one of the most challenging questions in astronomy to- day. Answering it requires a careful combination of observational and theoretical work to reliably determine the observed properties of cosmic bodies over large portions of the distant Universe on the one hand, and accurately model the physical processes driving their evolution on the other. Most importantly, it requires bringing together disparate multi-wavelength and multi-resolution spectro-photometric datasets in an homogeneous and well-characterized manner so that they are suitable for a rigorous statistical analysis. The Herschel Extragalactic Legacy Project (HELP) funded by the EC FP7 SPACE program aims to achieve this goal by combining the expertise of optical, infrared and radio astronomers to provide a multi-wavelength database for the dis- tant Universe as an accessible value-added resource for the astronomical community. It will do so by bringing together multi-wavelength datasets covering the 1000 deg2 mapped by Herschel extragalactic surveys and thus creating a joint lasting legacy from several ambitious sky surveys.