Results 101 to 110 of about 1,993,973 (222)

"Fermi" bubbles are bursting from our galaxy. Their origins remain a mystery. [PDF]

Proc Natl Acad Sci U S A, 2023
Mann A.
europepmc   +1 more source

Possible Contamination of the Intergalactic Medium Damping Wing in ULAS J1342+0928 by Proximate Damped Ly$\alpha$ Absorption [PDF]

, 2023
The red damping wing from neutral hydrogen in the intergalactic medium is a smoking-gun signal of ongoing reionization. One potential contaminant of the intergalactic damping wing signal is dense gas associated with foreground galaxies, which can give ...
Bañados, Eduardo, Bosman, Sarah E. I., Davies, Frederick B., Hennawi, Joseph F.   +3 more
core  

Physics of the interstellar and intergalactic medium

, 2010
This is a comprehensive and richly illustrated textbook on the astrophysics of the interstellar and intergalactic medium--the gas and dust, as well as the electromagnetic radiation, cosmic rays, and magnetic and gravitational fields, present between the ...
Draine, Bruce T., Draine, Bruce T
core  

Gamma-ray induced cascades and magnetic fields in the intergalactic medium

, 2009
peer reviewedWe present the results of Monte Carlo simulations of three-dimensional electromagnetic cascade initiated by interactions of the multi-TeV γ rays with the cosmological infrared/optical photon background in the intergalactic medium.
Elyiv, A., Semikoz, D.V., Elyiv, Andrii, A. Elyiv, Semikoz, D. V., D. V. Semikoz, Neronov, A., A. Neronov   +7 more
core   +1 more source

Turbulence production and turbulent pressure support in the intergalactic medium

, 2011
The injection and evolution of turbulence in the intergalactic medium is studied by means of mesh-based hydrodynamical simulations, including a subgrid-scale (SGS) model for small-scale unresolved turbulence.
J. Merklein, W. Schmidt, L. Iapichino, Iapichino, L., J. C. Niemeyer, Schmidt, W., Niemeyer, J. C., Merklein, J.   +7 more
core   +1 more source

Emergence of the temperature–density relation in the low-density intergalactic medium.

We examine the evolution of the intergalactic medium during the Epoch of Reionization in simulation boxes with varying reionization histories and show that the neutral fraction is a primary quantity controlling the thermal evolution of the ...
Wells, Alexandra
core   +1 more source

Improving Photometric Redshifts of Epoch of Reionization Galaxies: A New Empirical Transmission Curve with Neutral Hydrogen Damping Wing Lyα Absorption

The Astrophysical Journal Letters
We present a new analytical model for the attenuation to Epoch of Reionization (EoR) galaxies by proximate neutral hydrogen gas. Many galaxy spectra in the EoR taken by JWST have shown a flux deficit at wavelengths just redward of the Lyman break, and ...
Yoshihisa Asada, Guillaume Desprez, Chris J. Willott, Marcin Sawicki, Maruša Bradač, Gabriel Brammer, Florian Dubath, Kartheik G. Iyer, Nicholas S. Martis, Adam Muzzin, Gaël Noirot, Stéphane Paltani, Ghassan T. E. Sarrouh, Anishya Harshan, Vladan Markov   +14 more
doaj   +1 more source

A Framework for Ultralow Surface-brightness Integral-field-unit Emission Mapping with the Keck Cosmic Web Imager

The Astronomical Journal
Detecting spatially resolved emission at surface-brightness levels of ∼10 ^−20 –10 ^−19  erg cm ^−2  s ^−1  arcsec ^−2  Å ^−1 in optical integral-field spectroscopy requires reduction procedures limited not by photon statistics, but by systematic effects
Zeren Lin, D. Christopher Martin
doaj   +1 more source

Considering light-matter interactions in the Friedmann equations. [PDF]

Proc Math Phys Eng Sci, 2022
Vavryčuk V.
europepmc   +1 more source

The Signatures of Density Fluctuations and Mixing Gas in Circumgalactic Absorption Systems

The Astrophysical Journal
We investigate the prospects for detecting and constraining density and temperature inhomogeneities in the circumgalactic medium using absorption measurements of metal ions.
Yakov Faerman, Daniel R. Piacitelli, Matthew McQuinn, Jessica K. Werk   +3 more
doaj   +1 more source