Results 51 to 60 of about 434 (176)

Possible Contamination of the Intergalactic Medium Damping Wing in ULAS J1342+0928 by Proximate Damped Lyα Absorption

open access: yesThe Astrophysical Journal Letters
The red damping wing from neutral hydrogen in the intergalactic medium is a key predicted signature of ongoing reionization. One potential contaminant of the intergalactic damping wing signal is dense gas associated with foreground galaxies, which can ...
Frederick B. Davies   +3 more
doaj   +1 more source

The dynamical and thermodynamic effects of turbulence on the cosmic baryonic fluid

open access: yesAstronomy & Astrophysics
Both simulations and observations indicate that the so-called missing baryons reside in the intergalactic medium known as the warm-hot intergalactic medium (WHIM). In this study we employed the IllustrisTNG50-1 simulation to demonstrate that knowledge of
Wang Yun, Li Minxing, He Ping
doaj   +1 more source

Models of the Intergalactic Gas in Stephan's Quintet

open access: yes, 2009
To appear in the Proceedings of the Galaxy Wars: Stellar Populations and Star Formation in Interacting Galaxies ...
Hwang, Jeong-Sun   +3 more
openaire   +2 more sources

Plasma‐assisted fabrication of multiscale materials for electrochemical energy conversion and storage

open access: yesCarbon Energy, Volume 7, Issue 2, February 2025.
In this review, we aim to provide a comprehensive understanding of plasma and its application in energy storage and conversion. The classification of plasma technologies and principles are summarized. Recent developments in the synthesis or modification of multiscale materials based on plasma techniques including conversion, doping, deposition, and ...
Chen Li   +10 more
wiley   +1 more source

The Study of Nebular Emission on Nearby Spiral Galaxies in the IFU Era

open access: yesAdvances in Astronomy, Volume 2013, Issue 1, 2013., 2013
A new generation of wide‐field emission‐line surveys based on integral field units (IFU) is allowing us to obtain spatially resolved information of the gas‐phase emission in nearby late‐type galaxies, based on large samples of HII regions and full two‐dimensional coverage.
Fernando Fabián Rosales-Ortega   +1 more
wiley   +1 more source

The Universe is at Most 88% Neutral at z = 10.6

open access: yesThe Astrophysical Journal Letters, 2023
Recent observations of GN-z11 with JWST have revealed a Ly α emission line with an equivalent width (EW) of 18 ± 2 Å. At z = 10.6, this galaxy is expected to lie in the heart of reionization.
Sean Bruton   +3 more
doaj   +1 more source

Demography of High‐Redshift AGN

open access: yesAdvances in Astronomy, Volume 2012, Issue 1, 2012., 2012
High‐redshift AGN holds the key to understanding early structure formation and to probe the Universe during its infancy. We review the latest searches for high‐z AGN in the deepest X‐ray field so far, the Chandra Deep Field South (CDFS) 4 Msecond exposure.
Fabrizio Fiore   +3 more
wiley   +1 more source

Chronicling the Reionization History at 6 ≲ z ≲ 7 with Emergent Quasar Damping Wings

open access: yesThe Astrophysical Journal
The 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
doaj   +1 more source

A Review of the Theory of Galactic Winds Driven by Stellar Feedback

open access: yesGalaxies, 2018
Galactic winds from star-forming galaxies are crucial to the process of galaxy formation and evolution, regulating star formation, shaping the stellar mass function and the mass-metallicity relation, and enriching the intergalactic medium with metals ...
Dong Zhang
doaj   +1 more source

Recoiling Black Holes: Electromagnetic Signatures, Candidates, and Astrophysical Implications

open access: yesAdvances in Astronomy, Volume 2012, Issue 1, 2012., 2012
Supermassive black holes (SMBHs) may not always reside right at the centers of their host galaxies. This is a prediction of numerical relativity simulations, which imply that the newly formed single SMBH, after binary coalescence in a galaxy merger, can receive kick velocities up to several 1000 km/s due to anisotropic emission of gravitational waves ...
S. Komossa, Francesca Civano
wiley   +1 more source

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