Results 101 to 110 of about 30,791 (258)
The Astrophysical JournalWe report the discovery of large, ionized, [O ii ]-emitting circumgalactic nebulae around the majority of 30 UV-luminous quasars at z = 0.4–1.4 observed with deep, wide-field integral field spectroscopy with the Multi-Unit Spectroscopy Explorer (MUSE) by
Sean D. Johnson +17 more
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The Astrophysical JournalThe presence of dense, neutral hydrogen clouds in the hot, diffuse intragroup and intracluster (IC) medium is an important clue to the physical processes controlling the survival of cold gas and sheds light on cosmological baryon flows in massive halos ...
Avinash Chaturvedi +6 more
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The Astrophysical Journal, 2023 We present cosmological-scale three-dimensional neutral hydrogen (H i ) tomographic maps at z = 2–3 over a total of 837 deg ^2 in two blank fields that are developed with Ly α forest absorptions of 14,736 background Sloan Digital Sky Survey (SDSS ...
Dongsheng Sun +14 more
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A Classification Scheme for Quasar Absorption Lines
The Astrophysical JournalWe 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 +2 more
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, 2007 We present an analysis of the Lyman alpha forests of five quasar spectra in the near UV. Properties of the intergalactic medium (IGM) at an intermediate redshift interval (0.9 < z < 1.9) are studied.
Fechner, C. +3 more
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Compton Scattering of Electrons in the Intergalactic Medium
The Astrophysical JournalThis paper investigates the distribution and implications of cosmic-ray electrons within the intergalactic medium (IGM). Utilizing a synthesis model of the extragalactic background, we evolve the spectrum of Compton-included cosmic rays.
Yuanyuan Yang +2 more
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Bird's-eye View of Molecular Gas across Stephan's Quintet Galaxy Group and Intragroup Medium
The Astrophysical JournalWe present the large-scale distribution and kinematics of cold molecular gas across the compact galaxy group Stephan’s Quintet, based on CO(2–1) observations performed with the Atacama Compact Array (ACA) and CO(1–0) data from the Combined Array for ...
B. H. C. Emonts +17 more
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Chronicling the Reionization History at 6 ≲ z ≲ 7 with Emergent Quasar Damping Wings
The Astrophysical JournalThe spectra of high-redshift ( z ≳ 6) quasars contain valuable information on the progression of the Epoch of Reionization. At redshifts z < 6, the observed Lyman-series forest shows that the intergalactic medium is nearly ionized, while at z > 7 the ...
Dominika Ďurovčíková +8 more
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Revised Constraints on the Fast Radio Burst Population from the First CHIME/FRB Catalog
The Astrophysical JournalIn this paper, we investigate the fast radio burst (FRB) population using the first CHIME/FRB catalog. We first reconstruct the extragalactic dispersion measure–redshift relation (DM _E – z relation) from well-localized FRBs, then use it to infer the ...
Hai-Nan Lin, Rui Zou
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The Challenge of Detecting Intracluster Filaments with Faraday Rotation
Galaxies, 2018 The detection of filaments in the cosmic web will be crucial to distinguish between the possible magnetogenesis scenarios, and future large polarization surveys will be able to shed light on their magnetization level.
Nicola Locatelli +2 more
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