Results 61 to 70 of about 27,730 (253)
Inhomogeneous Reionization Models in Cosmological Hydrodynamical Simulations [PDF]
, 2019 In this work we present a new hybrid method to simulate the thermal effects of the reionization in cosmological hydrodynamical simulations. The method improves upon the standard approach used in simulations of the intergalactic medium (IGM) and galaxy ...
Davies, F. B. +4 more
core +2 more sources
Suppression of Star Formation in Low-Mass Galaxies Caused by the Reionization of their Local Neighborhood [PDF]
MNRAS, 480, 1740-1753 (2018), 2018 Photoheating associated with reionization suppressed star formation in low-mass galaxies. Reionization was inhomogeneous, however, affecting different regions at different times. To establish the causal connection between reionization and suppression, we must take this local variation into account.
arxiv +1 more source
The Astrophysical Journal, 2023 We present the lifetime star formation histories (SFHs) for six ultrafaint dwarf (UFD; M _V > − 7.0, $4.9\lt {\mathrm{log}}_{10}({M}_{* }(z=0)/{M}_{\odot })\lt 5.5$ ) satellite galaxies of M31 based on deep color–magnitude diagrams constructed from ...
Alessandro Savino +36 more
doaj +1 more source
Long Dark Gaps in the Lyβ Forest at z < 6: Evidence of Ultra-late Reionization from XQR-30 Spectra
The Astrophysical Journal, 2022 We present a new investigation of the intergalactic medium near reionization using dark gaps in the Ly β forest. With its lower optical depth, Ly β offers a potentially more sensitive probe to any remaining neutral gas compared to the commonly used Ly α ...
Yongda Zhu +24 more
doaj +1 more source
Geophysical Research Letters, Volume 47, Issue 10, 28 May 2020., 2020 Abstract Strong depletions of energetic protons (115–244 keV) were observed during Galileo flyby E26 of Europa. We simulate the flux of energetic protons using a Monte Carlo particle backtracing code and show that energetic proton depletions during E26 are reproduced by taking into account the perturbations of the electromagnetic fields calculated by ...
H. L. F. Huybrighs +9 more
wiley +1 more source
Cosmic Reionization Redux [PDF]
The Astrophysical Journal, 2006 Submitted to ApJ.
Nickolay Y. Gnedin +2 more
openaire +3 more sources
The Epoch of Reionization [PDF]
, 2012 The Universe's dark ages end with the formation of the first generation of galaxies. These objects start emitting ultraviolet radiation that carves out ionized regions around them. After a sufficient number of ionizing sources have formed, the ionized fraction of the gas in the Universe rapidly increases until hydrogen becomes fully ionized.
openaire +7 more sources
Self-regulated reionization [PDF]
Monthly Notices of the Royal Astronomical Society, 2007 Recently, we have presented the first large-scale radiative transfer simulations of reionization. Here we present new simulations which extend the source halo mass range downward to 10^8M_solar, to capture the full range of halo masses thought to be primarily responsible for reionization by their star formation following atomic hydrogen radiative ...
Ue-Li Pen +3 more
openaire +3 more sources
The GMRT Search for Reionization [PDF]
AIP Conference Proceedings, 2008 7 pages, invited talk at Arecibo conference "The Evolution of Galaxies through the Neutral Hydrogen Window"
Ue-Li Pen +7 more
openaire +3 more sources
Was there an early reionization component in our universe? [PDF]
, 2017 A deep understanding of the Epoch of Reionization is still missing in our knowledge of the universe. While future probes will allow us to test the precise evolution of the free electron fraction from redshifts between $z\simeq 6$ and $z\simeq 20$, at present one could ask what kind of reionization processes are allowed by present Cosmic Microwave ...
arxiv +1 more source