• Corpus ID: 245877596

The PAU Survey: Measurements of the 4000 {\AA} spectral break with narrow-band photometry

@inproceedings{Renard2022ThePS,
  title={The PAU Survey: Measurements of the 4000 \{\AA\} spectral break with narrow-band photometry},
  author={Pablo Renard and Małgorzata Siudek and Martin Eriksen and Laura Cabayol and Zheng Cai and Jorge Carretero and Ricard Casas and Francisco J. Castander and Enrique Fern{\'a}ndez and Juan Garc'ia-Bellido and Enrique Gazta{\~n}aga and Henk Hoekstra and Benjamin Joachimi and Ramon Miquel and David Navarro-Girones and Crist{\'o}bal Padilla and Eusebio S{\'a}nchez and Santiago Serrano and Pau Tallada-Cresp'i and Juan de Vicente and Anna Wittje and Angus H. Wright},
  year={2022}
}
The D4000 spectral break index is one of the most important features in the visible spectrum, as it is a proxy for stellar ages and is also used in galaxy classification. However, its direct measurement has always been reserved to spectroscopic observations. In this work, we present a general method to directly measure the D4000 spectral break index with narrow-band photometry: this method has been validated using realistic simulations, and then evaluated with PAUS NBs, cross-matched with… 

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