A model for the evolution of the intergalactic medium [PDF]
Publications of the Astronomical Society of the Pacific, 1988 We studied the evolution of the intergalactic medium (IGM) in a cold dark-matter dominate universe. In the model the IGM is gravitationally coupled to the dark matter and is subject to protogalaxy heating and Compton and radiative coolings. Among the major results are: (1) The growth of the root-mean-square density fluctuations in the IGM is greatly ...
Wei-Hwan Chiang +2 more
openalex +4 more sources
X-ray Observations of the Warm-Hot Intergalactic Medium [PDF]
, 2002 We present Chandra observations that provide the most direct evidence to date for the pervasive, moderate density, shock-heated intergalactic medium predicted by leading cosmological scenarios. We also comment briefly on future observations with Constellation-X.
Smita Mathur +2 more
arxiv +3 more sources
Microquasars as heating sources of the intergalactic medium during reionisation of the Universe [PDF]
, 2017 The effect of the primeval sources of radiation and particles on the thermodynamical state of the intergalactic medium during the Epoch of Reionisation is still unclear. In this work, we explore the contribution of electrons accelerated in the jets of high-redshift microquasars to heating and ionising the intergalactic medium.
V. Douna +18 more
arxiv +3 more sources
Investigating Ionization in the Intergalactic Medium
The Astrophysical JournalThe intergalactic medium (IGM) contains >50% of the baryonic mass of the Universe, yet the mechanisms responsible for keeping the IGM ionized have not been fully explained.
Brad Koplitz +2 more
doaj +3 more sources
Compton Scattering of Electrons in the Intergalactic Medium
The Astrophysical JournalThis paper investigates the distribution and implications of cosmic-ray electrons within the intergalactic medium (IGM). Utilizing a synthesis model of the extragalactic background, we evolve the spectrum of Compton-included cosmic rays.
Yuanyuan Yang +2 more
doaj +3 more sources
Quasars and the Intergalactic Medium at Cosmic Dawn [PDF]
Annual Review of Astronomy and Astrophysics, 2022 Quasars at cosmic dawn provide powerful probes of the formation and growth of the earliest supermassive black holes (SMBHs) in the Universe, their connections to galaxy and structure formation, and the evolution of the intergalactic medium (IGM) at the ...
Xiaohui Fan, E. Bañados, R. Simcoe
semanticscholar +1 more source
Finding the Missing Baryons in the Intergalactic Medium with Localized Fast Radio Bursts [PDF]
Astrophysical Journal Letters, 2022 The missing baryon problem is one of the major unsolved problems in astronomy. Fast radio bursts (FRBs) are bright millisecond pulses with unknown origins.
K. Yang, Q. Wu, F. Wang
semanticscholar +1 more source
Weighing cosmic structures with clusters of galaxies and the intergalactic medium [PDF]
Monthly notices of the Royal Astronomical Society, 2022 We present an analysis aimed at combining cosmological constraints from number counts of galaxy clusters identified through the Sunyaev-Zeldovich effect, obtained with the South Pole Telescope (SPT), and from Lyman-α spectra obtained with the MIKE ...
Matteo Esposito +5 more
semanticscholar +1 more source
The THESAN project: properties of the intergalactic medium and its connection to Reionization-era galaxies [PDF]
, 2021 The high-redshift intergalactic medium (IGM) and the primeval galaxy population are rapidly becoming the new frontier of extra-galactic astronomy.
E. Garaldi +6 more
semanticscholar +1 more source
A Significantly Neutral Intergalactic Medium Around the Luminous z = 7 Quasar J0252–0503 [PDF]
Astrophysical Journal, 2020 Luminous z ≥ 7 quasars provide direct probes of the evolution of supermassive black holes (SMBHs) and the intergalactic medium (IGM) during the epoch of reionization (EoR).
Feige Wang +16 more
semanticscholar +1 more source