The MUSE Extremely Deep Field: The cosmic web in emission at high redshift

@article{Bacon2021TheME,
title={The MUSE Extremely Deep Field: The cosmic web in emission at high redshift},
author={Roland Bacon and David L. Mary and Thibault Garel and J{\'e}r{\'e}my Blaizot and Michael V. Maseda and Joop Schaye and Lutz Wisotzki and Simon Conseil and Jarle Brinchmann and Floriane Leclercq and Valentina Abril-Melgarejo and Leindert A. Boogaard and Nicolas F. Bouch'e and Thierry Contini and Anna Feltre and Bruno Guiderdoni and Christian Herenz and Wolfram Kollatschny and Haruka Kusakabe and Jorryt Matthee and L'eo Michel-Dansac and Themiya Nanayakkara and Johan Richard and Martin M. Roth and Kasper B. Schmidt and Matthias Steinmetz and Laurence Tresse and Tanya Urrutia and Anne Verhamme and Peter M. Weilbacher and Johannes Zabl and Sebastiaan L. Zoutendijk},
journal={Astronomy \& Astrophysics},
year={2021}
}
We report the discovery of diffuse extended Lyα emission from redshift 3.1 to 4.5, tracing cosmic web filaments on scales of 2.5−4 cMpc. These structures have been observed in overdensities of Lyα emitters in the MUSE Extremely Deep Field, a 140 h deep MUSE observation located in the Hubble Ultra-Deep Field. Among the 22 overdense regions identified, five are likely to harbor very extended Lyα emission at high significance with an average surface brightness of 5 × 10−20 erg s−1 cm−2 arcsec−2…
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