A giant protogalactic disk linked to the cosmic web

D. Christopher Martin (), Mateusz Matuszewski, Patrick Morrissey, James D. Neill, Anna Moore, Sebastiano Cantalupo, J. Xavier Prochaska and Daphne Chang
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D. Christopher Martin: Cahill Center for Astrophysics, California Institute of Technology
Mateusz Matuszewski: Cahill Center for Astrophysics, California Institute of Technology
Patrick Morrissey: Cahill Center for Astrophysics, California Institute of Technology
James D. Neill: Cahill Center for Astrophysics, California Institute of Technology
Anna Moore: Caltech Optical Observatories, Cahill Center for Astrophysics, California Institute of Technology
Sebastiano Cantalupo: ETH Zurich, Institute for Astronomy
J. Xavier Prochaska: University of California

Nature, 2015, vol. 524, issue 7564, 192-195

Abstract: A two-dimensional spectroscopic investigation of a large, luminous filament of the cosmic web near QSO UM287 reveals that the brightest emission region is an extended rotating hydrogen disk with a velocity profile that is characteristic of gas in a 1013-solar-mass dark-matter halo, with a geometry that is strongly suggestive of cold flow accretion.

Date: 2015
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DOI: 10.1038/nature14616

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