X-RAY SCATTERING ECHOES AND GHOST HALOS FROM THE INTERGALACTIC MEDIUM: RELATION TO THE NATURE OF AGN VARIABILITY by Corrales, Lia

“…X-ray bright quasars might be used to trace dust in the circumgalactic and intergalactic medium through the phenomenon of X-ray scattering, which is observed around Galactic objects whose light passes through a sufficient column of interstellar gas and dust. …”
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PROBING THE INTERGALACTIC MEDIUM/GALAXY CONNECTION. V. ON THE ORIGIN OF Lyα AND O VI ABSORPTION AT z < 0.2 by Prochaska, J. Xavier, Weiner, B., Chen, H.-W., Mulchaey, J. S., Cooksey, Kathy

“…We analyze the association of galaxies with Lyα and O VI absorption, the most commonly detected transitions of the low-z intergalactic medium (IGM), in the fields of 14 quasars with z[subscript em] = 0.06–0.57. …”
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Reionization and beyond: detecting the peaks of the cosmological 21 cm signal by Mesinger, Andrei, Ewall-Wice, Aaron Michael, Hewitt, Jacqueline N

“…There is increasing interest also in the pre-reionization epoch when the intergalactic medium (IGM) was heated by an early X-ray background. …”
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Baryons in the Cosmic Web of IllustrisTNG – I: gas in knots, filaments, sheets, and voids by Martizzi, Davide, Vogelsberger, Mark, Artale, Maria Celeste, Haider, Markus, Torrey, Paul A., Marinacci, Federico, Nelson, Dylan, Pillepich, Annalisa, Weinberger, Rainer, Hernquist, Lars, Naiman, Jill, Springel, Volker

“…We also show that the cool, diffuse intergalactic medium [IGM; $T\lt 105 \, {\rm K}$, $n-{\rm H}\lt 10{-4}(1+z) \, {\rm cm{-3}}$] and the warm-hot intergalactic medium [WHIM; $105 \lt T\lt 107 \, {\rm K}$, $n-{\rm H} \lt 10{-4}(1+z)\, {\rm cm{-3}}$] constitute ${\sim } 39$ and ${\sim } 46{{\ \rm per\ cent}}$ of the baryons at redshift z = 0, respectively. …”
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A Metal-poor Damped Ly α System at Redshift 6.4 by Bañados, Eduardo, Rauch, Michael, Decarli, Roberto, Farina, Emanuele P, Hennawi, Joseph F, Mazzucchelli, Chiara, Venemans, Bram P, Walter, Fabian, Simcoe, Robert A., Prochaska, J Xavier, Cooper, Thomas, Davies, Frederick B, Chen, Shi-Fan S.

“…However, in order to match the data a contribution of an intergalactic medium 5%-38% neutral or additional weaker absorbers near the quasar is also required. …”
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Are we witnessing the epoch of reionisation at z = 7.1 from the spectrum of J1120+0641? by Greig, Bradley, Mesinger, Andrei, Haiman, Zoltán, Simcoe, Robert A

“…© 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society We quantify the presence of Lyα damping wing absorption from a partially neutral intergalactic medium (IGM) in the spectrum of the z = 7.08 QSO, ULASJ1120+0641. …”
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PROBING THE IGM/GALAXY CONNECTION. IV. THE LCO/WFCCD GALAXY SURVEY OF 20 FIELDS SURROUNDING UV-BRIGHT QUASARS by Prochaska, J. Xavier, Weiner, B., Chen, H.-W., Mulchaey, J. S., Cooksey, Kathy

“…We publish the survey for galaxies in 20 fields containing ultraviolet bright quasars (with z [subscript em] ≈ 0.1-0.5) that can be used to study the association between galaxies and absorption systems from the low-z intergalactic medium (IGM). The survey is magnitude limited (R ≈ 19.5 mag) and highly complete out to 10' from the quasar in each field. …”
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An 800-million-solar-mass black hole in a significantly neutral Universe at a redshift of 7.5 by Bañados, Eduardo, Venemans, Bram P, Mazzucchelli, Chiara, Farina, Emanuele P, Walter, Fabian, Wang, Feige, Decarli, Roberto, Stern, Daniel, Fan, Xiaohui, Davies, Frederick B, Hennawi, Joseph F, Simcoe, Robert A., Turner, Monica Lisa, Rix, Hans-Walter, Yang, Jinyi, Kelson, Daniel D, Rudie, Gwen C, Winters, Jan Martin

“…We see strong evidence of absorption of the spectrum of the quasar redwards of the Lyman α emission line (the Gunn-Peterson damping wing), as would be expected if a significant amount (more than 10 per cent) of the hydrogen in the intergalactic medium surrounding J1342 + 0928 is neutral. …”
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The large-scale distribution of ionized metals in IllustrisTNG by Artale, M Celeste, Haider, Markus, Montero-Dorta, Antonio D, Vogelsberger, Mark, Martizzi, Davide, Torrey, Paul, Bird, Simeon, Hernquist, Lars, Marinacci, Federico

“…We focus on the fractions of C ii, C iv, Mg ii, N v, Ne viii, O vi, and Si iv in different cosmic web structures (filaments, haloes, and voids) and gas phases (warm–hot intergalactic medium, hot, diffuse, and condensed gas) from z = 6 to z = 0. …”
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Properties of the ionized CGM and IGM: tests for galaxy formation models from the Sunyaev–Zel’dovich effect by Lim, SH, Barnes, D, Vogelsberger, M, Mo, HJ, Nelson, D, Pillepich, A, Dolag, K, Marinacci, F

“…We present a comparison of the physical properties of the ionized gas in the circumgalactic medium and intergalactic medium (IGM) at z ∼ 0 between observations and four cosmological hydrodynamical simulations: Illustris, TNG300 of the IllustrisTNG project, EAGLE, and one of the Magneticum simulations. …”
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X-RAYING THE INTERGALACTIC O VI ABSORBERS by Yao, Y., Tripp, T. M., Wang, Q. D., Danforth, Charles W., Canizares, Claude R., Shull, J. M., Song, L., Marshall, Herman

“…We discuss the implications of these results for physical properties of the putative warm–hot intergalactic medium and its detection in future X-ray observations.…”
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The history of metal enrichment traced by X-ray observations of high-redshift galaxy clusters by Flores, Anthony M, Mantz, Adam B, Allen, Steven W, Morris, R Glenn, Canning, Rebecca E A, Bleem, Lindsey E, Calzadilla, Michael S, Floyd, Benjamin T, McDonald, Michael, Ruppin, Florian

“…<jats:title>ABSTRACT</jats:title> <jats:p>We present the analysis of deep X-ray observations of 10 massive galaxy clusters at redshifts 1.05 &amp;lt; z &amp;lt; 1.71, with the primary goal of measuring the metallicity of the intracluster medium (ICM) at intermediate radii, to better constrain models of the metal enrichment of the intergalactic medium. The targets were selected from X-ray and Sunyaev–Zel’dovich effect surveys, and observed with both the XMM–Newton and Chandra satellites. …”
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Critical-angle x-ray transmission grating spectrometer with extended bandpass and resolving power > 10,000 by Bruccoleri, Alexander R., Kolodziejczak, Jeffery, Gaskin, Jessica A., O'Dell, Stephen L., Bhatia, Ritwik, Heilmann, Ralf K, Schattenburg, Mark Lee

“…A number of high priority subjects in astrophysics can be addressed by a state-of-the-art soft x-ray grating spectrometer, such as the role of Active Galactic Nuclei in galaxy and star formation, characterization of the Warm-Hot Intergalactic Medium and the missing baryon problem, characterization of halos around the Milky Way and nearby galaxies, as well as stellar coronae and surrounding winds and disks. …”
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