The Large-scale Distribution of Cool Gas around Luminous Red Galaxies

Guangtun Zhu,Brice Menard,Dmitry Bizyaev,Howard J Brewington,Garrett Ebelke,Shirley Ho,Karen Kinemuchi,Viktor Malanushenko,Elena Malanushenko, Moses Marchante,S S More,Daniel Oravetz,Kaike Pan,Patrick Petitjean,Audrey Simmons

Monthly Notices of the Royal Astronomical Society（2014）

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摘要

We present a measurement of the correlation function between luminous red galaxies (LRGs) and cool gas traced by Mg II λλ2796, 2803 absorption, on scales ranging from about 30 kpc to 20 Mpc. The measurement is based on cross-correlating the positions of about one million red galaxies at z ∼ 0.5 and the flux decrements induced in the spectra of about 105 background quasars from the Sloan Digital Sk...

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关键词

intergalactic medium,quasars: absorption lines

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