H. Umehata
Gas filaments of the cosmic web located around active galaxies in a protocluster
Umehata, H.; Fumagalli, M.; Smail, I.; Matsuda, Y.; Swinbank, A.M.; Cantalupo, S.; Sykes, C.; Ivison, R.J.; Steidel, C.C.; Shapley, A.E.; Vernet, J.; Yamada, T.; Tamura, Y.; Kubo, M.; Nakanishi, K.; Kajisawa, M.; Hatsukade, B.; Kohno, K.
Authors
Professor Michele Fumagalli michele.fumagalli@durham.ac.uk
Academic Visitor
Professor Ian Smail ian.smail@durham.ac.uk
Emeritus Professor
Y. Matsuda
Professor Mark Swinbank a.m.swinbank@durham.ac.uk
Professor
S. Cantalupo
Mr Calvin Verrier Sykes calvin.v.sykes@durham.ac.uk
PGR Student Doctor of Philosophy
R.J. Ivison
C.C. Steidel
A.E. Shapley
J. Vernet
T. Yamada
Y. Tamura
M. Kubo
K. Nakanishi
M. Kajisawa
B. Hatsukade
K. Kohno
Abstract
Cosmological simulations predict the Universe contains a network of intergalactic gas filaments, within which galaxies form and evolve. However, the faintness of any emission from these filaments has limited tests of this prediction. We report the detection of rest-frame ultraviolet Lyman-alpha radiation from multiple filaments extending more than one megaparsec between galaxies within the SSA 22 proto-cluster at a redshift of 3.1. Intense star formation and supermassive black-hole activity is occurring within the galaxies embedded in these structures, which are the likely sources of the elevated ionizing radiation powering the observed Lyman-alpha emission. Our observations map the gas in filamentary structures of the type thought to fuel the growth of galaxies and black holes in massive proto-clusters.
Citation
Umehata, H., Fumagalli, M., Smail, I., Matsuda, Y., Swinbank, A., Cantalupo, S., …Kohno, K. (2019). Gas filaments of the cosmic web located around active galaxies in a protocluster. Science, 366(6461), 97-100. https://doi.org/10.1126/science.aaw5949
Journal Article Type | Article |
---|---|
Acceptance Date | Sep 2, 2019 |
Online Publication Date | Oct 4, 2019 |
Publication Date | Oct 4, 2019 |
Deposit Date | Oct 16, 2019 |
Publicly Available Date | Oct 16, 2019 |
Journal | Science |
Print ISSN | 0036-8075 |
Electronic ISSN | 1095-9203 |
Publisher | American Association for the Advancement of Science |
Peer Reviewed | Peer Reviewed |
Volume | 366 |
Issue | 6461 |
Pages | 97-100 |
DOI | https://doi.org/10.1126/science.aaw5949 |
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Copyright Statement
This is the author’s version of the work. It is posted here by permission of the AAAS for personal use, not for redistribution. The definitive version was published in Science, Volume 366 October 2019, DOI: 10.1126/science.aaw5949.
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