Results 91 to 100 of about 1,900,467 (218)

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

On the Physical Nature of Lyα Transmission Spikes in High-redshift Quasar Spectra

The Astrophysical Journal
We investigate Lyman-alpha (Ly α ) transmission spikes at 5.2 < z < 6.8 using synthetic quasar spectra from the “Cosmic Reionization on Computers” simulations.
Hanjue Zhu, Nickolay Y. Gnedin, Camille Avestruz   +2 more
doaj   +1 more source

Assessing the benefits of the "Intergalactic World" social emotional learning program for 8-12-year-old children in Portugal: perspectives from teachers and caregivers. [PDF]

Front Psychol, 2023
Antunes R, Alexandre J, Guedes M, Filipe MG, Veríssimo M.   +4 more
europepmc   +1 more source

Simulating intergalactic medium reionization

, 2003
International audienceWe have studied the intergalactic medium (IGM) reionization process in its full cosmological context, including structure evolution and a realistic galaxy population. We have used a combination of high-resolution N-body simulations (
Stoehr, F., White, S. D. M., White, S., Ciardi, B.   +3 more
core   +1 more source

Dynamical evolution of high velocity clouds in the intergalactic medium

, 2002
$\ion{H}{i}$ observations of high-velocity clouds (HVCs) indicate, that they are interacting with their ambient medium. Even clouds located in the very outer Galactic halo or the intergalactic space seem to interact with their ambient medium.
G. T. Birk, C. Konz, C. Brüns
core   +1 more source

The Dispersion Measure and Scattering of Fast Radio Bursts: Contributions from Multicomponents, and Clues for the Intrinsic Properties

The Astrophysical Journal Supplement Series
Fast radio bursts (FRBs) are luminous, millisecond-duration transients that offer great potential for probing the Universe, yet their physical origins remain unclear.
Jian-feng Mo, Weishan Zhu, Long-Long Feng   +2 more
doaj   +1 more source

"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

Reionization of the Intergalactic Medium

Proceedings of the International School of Physics “Enrico Fermi”, 2014
Review Lecture given at New Horizons for Observational Cosmology, International School of Physics Enrico Fermi, Varenna, July 1-6, 2013, eds. A. Melchiorri, A. Cooray, E. Komatsu, to be published by the Italian Society of Physics.
Ferrara A., Pandolfi S.
openaire   +2 more sources

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

X-ray absorption by the intergalactic medium

, 2001
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 2001.Includes bibliographical references (p. 145-155).I have studied the intergalactic medium (IGM) located in galaxy clusters and groups via the so-called "X-ray Forest" the X-ray
Fang, Taotao, 1970-
core