Results 61 to 70 of about 1,900,467 (218)

Empirical Intergalactic medium models between 1.5

, 2019
<p>We provide in this releasethe intergalactic medium extinction (IGM) empirical models used for the fitting of high redshift galaxy spectra between z=1.5 and z=7. </p ...
Thomas Romain
core   +1 more source

The Cosmic Ultraviolet Baryon Survey (CUBS). IX. The Enriched Circumgalactic and Intergalactic Medium Around Star-forming Field Dwarf Galaxies Traced by O vi Absorption

The Astrophysical Journal
The shallow potential wells of star-forming dwarf galaxies make their surrounding circumgalactic and intergalactic medium (CGM/IGM) sensitive laboratories for studying the inflows and outflows thought to regulate galaxy evolution.
Nishant Mishra, Sean D. Johnson, Gwen C. Rudie, Hsiao-Wen Chen, Joop Schaye, Zhijie Qu, Fakhri S. Zahedy, Erin T. Boettcher, Sebastiano Cantalupo, Mandy C. Chen, Claude-André Faucher-Giguére, Jenny E. Greene, Jennifer I-Hsiu Li, Zhuoqi (Will) Liu, Sebastian Lopez, Patrick Petitjean   +15 more
doaj   +1 more source

Intergalactic Medium Rotation Measure of Primordial Magnetic Fields

The Astrophysical Journal
The Faraday rotation effect, quantified by the rotation measure (RM), is a powerful probe of the large-scale magnetization of the Universe—tracing magnetic fields not only on galaxy and galaxy cluster scales but also in the intergalactic medium (IGM ...
Salome Mtchedlidze, Paola Domínguez-Fernández, Xiaolong Du, Ettore Carretti, Franco Vazza, Shane Patrick O’Sullivan, Axel Brandenburg, Tina Kahniashvili   +7 more
doaj   +1 more source

Directly Tracing Cool Filamentary Accretion over >100 kpc into the Interstellar Medium of a Quasar Host at z = 1

The Astrophysical Journal Letters, 2022
We report the discovery of giant (50−100 kpc) [O ii ] emitting nebulae with MUSE in the field of TXS 0206−048, a luminous quasar at z = 1.13. “Down-the-barrel” UV spectra of the quasar show absorption at velocities coincident with those of the extended ...
Sean D. Johnson, Joop Schaye, Gregory L. Walth, Jennifer I-Hsiu Li, Gwen C. Rudie, Hsiao-Wen Chen, Mandy C. Chen, Benoît Epinat, Massimo Gaspari, Sebastiano Cantalupo, Wolfram Kollatschny, Zhuoqi (Will) Liu, Sowgat Muzahid   +12 more
doaj   +1 more source

Metals in the intergalactic medium [PDF]

Proceedings of the International Astronomical Union, 2005
The absorption lines seen in the spectra of quasars trace gas over a very large range of overdensities, from galaxies to voids and probably account for most of the baryons at high redshift. Once thought to be a chemically pristine remnant of the Big Bang, the Lyman alpha forest has now been shown to contain significant quantities of metals.
openaire   +1 more source

The Morphology and Kinematics of a Giant, Symmetric Nebula around a Radio-loud Quasar 3C 57: Extended Rotating Gas or Biconical Outflows?

The Astrophysical Journal
Gas flows between galaxies and the circumgalactic medium play a crucial role in galaxy evolution. When ionized by a quasar, these gas flows can be directly traced as giant nebulae. We present a study of a giant nebula around a radio-loud quasar, 3C 57 at
Zhuoqi (Will) Liu, Sean D. Johnson, Jennifer I-Hsiu Li, Benoît Epinat, Gwen C. Rudie, Ana Monreal-Ibero, Sebastiano Cantalupo, Zhijie Qu, Mandy C. Chen, Wolfram Kollatschny, Sowgat Muzahid, Fakhri S. Zahedy, Elise Kesler, Nishant Mishra   +13 more
doaj   +1 more source

The Faint Intergalactic Redshifted Emission Balloon and the Cosmic Web Imager: Two Integral Field Spectrographs Designed to Study Emission from the Intergalactic Medium [PDF]

, 2012
Gas in the intergalactic medium serves as the fuel for galaxies. It carries signatures of galactic feedback, including matter and energy outflows.
Matuszewski, Mateusz Konrad
core   +1 more source

Behavior of the Lyα Damping Wings as a Function of Reionization Topology

The Astrophysical Journal
The damping wing signatures in high-redshift quasars have proven instrumental in studying the epoch of reionization. With the upcoming Euclid mission set to discover many more quasars, it is crucial to explore what this new set of quasars might reveal ...
Yash M. Sharma, Frederick B. Davies, Prakash Gaikwad, Fahad Nasir, Sarah E. I. Bosman   +4 more
doaj   +1 more source

Radiative transfer through the intergalactic medium

, 2004
We use a probabilistic method to compute the propagation of an ionization front corresponding to the reionization of the intergalactic medium in a Λ-cold dark matter (ΛCDM) cosmology, including both hydrogen and helium.
Bolton, James, Meiksin, Avery, White, Martin   +2 more
core   +1 more source

A Classification Scheme for Quasar Absorption Lines

The Astrophysical Journal
We present a method to classify intergalactic absorption lines and apply it to 10,772 low-redshift systems. The classification gives the number of components (reflecting the kinematics) in four different ionization phases, using detections and ...
Benjamin E. Rosenwasser, Bart P. Wakker, Blair D. Savage   +2 more
doaj   +1 more source