Results 131 to 140 of about 1,993,973 (222)
Gamma ray bursts, supernovae and metallicity in the intergalactic medium [PDF]
, 2007 The mean iron abundance observed in the intracluster medium of galaxy clusters is consistent with the mean amount of iron injected in the universe per unit volume by standard supernova (SN) explosions with a rate proportional to the cosmic star-formation
De Rujula, A., Dado, Shlomo, Dar, Arnon
core
Cascaded Gamma-Ray Emission Associated with the KM3NeT Ultrahigh-energy Event KM3-230213A
The Astrophysical Journal LettersA neutrino-like event with an energy of ∼220 PeV was recently detected by the KM3NeT/ARCA telescope. If this neutrino comes from an astrophysical source or from the interaction of an ultrahigh-energy cosmic ray in the intergalactic medium, the ultrahigh ...
Ke Fang, Francis Halzen, Dan Hooper
doaj +1 more source
A New Approach for Constraining Large-scale Temperature Fluctuations in the Intergalactic Medium
The Astrophysical JournalThe reionization of helium is thought to occur at 2.5 ≲ z ≲ 4, marking the last phase transition and final global heating event of the intergalactic medium (IGM).
Saba Etezad-Razavi +2 more
doaj +1 more source
Considering light-matter interactions in Friedmann equations based on the conformal FLRW metric. [PDF]
J Adv Res, 2023 Vavryčuk V.
europepmc +1 more source
Lyman Continuum Leakage from Massive Leaky Starbursts: A Different Class of Emitters?
The Astrophysical JournalThe origin of Lyman continuum (LyC) photons responsible for reionizing the Universe remains largely unknown, with the fraction of escaping LyC photons from galaxies at z ∼ 6 to 12 still uncertain.
Namrata Roy +13 more
doaj +1 more source
Simulating the chemical enrichment of the intergalactic medium [PDF]
, 2010 Over the past few decades, it has become evident that the vast amount of space that exists between galaxies contains trace amounts of elements heavier than helium ('metals' in astronomical terms).
Wiersma, R.P.C., Wiersma, R.
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Constraining Lyα Damping Wings Using the Fisher Matrix
The Astrophysical JournalThe reionization topology near the epoch depends on a multitude of parameters—namely, x _HI , ${M}_{\min }$ , t _q , and M _qso . The effect on reionization topology as a function of these parameters can be seen through the changes in the median damping ...
Yash Mohan Sharma, Frederick B. Davies
doaj +1 more source
Bioinformation and Neutrino Communication. [PDF]
Bioinformation, 2022 Shapshak P.
europepmc +1 more source
The Ionization History of The Intergalactic Medium:
, 2003 The funded project seeked a unified description of the ionization, physical structure, and evolution of the intergalactic medium (IGM) and quasar intervening absorption systems.
Madau, Piero
core
A 0.6 Mpc H I structure associated with Stephan's Quintet. [PDF]
Nature, 2022 Xu CK +10 more
europepmc +1 more source