Results 1 to 10 of about 31,186 (206)
Radiative transfer through the Intergalactic Medium [PDF]
Monthly Notices of the Royal Astronomical Society, 2003 We use a probabilistic method to compute the propagation of an ionization front corresponding to the re-ionization of the intergalactic medium in a LCDM cosmology, including both hydrogen and helium.
Bolton, James +2 more
core +3 more sources
The Low-Redshift Intergalactic Medium [PDF]
Publications of the Astronomical Society of Australia, 1998 The low-redshift Ly-alpha forest of absorption lines provides a probe of large-scale baryonic structures in the intergalactic medium, some of which may be remnants of physical conditions set up during the epoch of galaxy formation.
Penton, Steven V. +2 more
core +5 more sources
The Astrophysical Journal, 2023 The thermal history of the intergalactic medium is full of extremely useful data in the field of astrophysics and cosmology. In other words, by examining this environment in different redshifts, the effects of cosmology and astrophysics can be observed ...
S. Mobina Hosseini +3 more
doaj +1 more source
The Astrophysical Journal, 2023 We combine James Webb Space Telescope (JWST) and Hubble Space Telescope imaging with Atacama Large Millimeter Array CO(2–1) spectroscopy to study the highly turbulent multiphase intergalactic medium (IGM) in Stephan’s Quintet on 25–150 pc scales ...
P. N. Appleton +14 more
doaj +1 more source
Heating of the Intergalactic Medium by Primordial Miniquasars [PDF]
, 2006 A simple analytical model is used to calculate the X-ray heating of the IGM for a range of black hole masses. This process is efficient enough to decouple the spin temperature of the intergalactic medium from the cosmic microwave background (CMB ...
Abel +58 more
core +14 more sources
Turbulence in the Intergalactic Medium [PDF]
Monthly Notices of the Royal Astronomical Society, 2011 13 pages, 8 figures.
Evoli, Carmelo, FERRARA, ANDREA
openaire +3 more sources
The Astrophysical Journal, 2023 Cosmic reionization was the last major phase transition of hydrogen from neutral to highly ionized in the intergalactic medium (IGM). Current observations show that the IGM is significantly neutral at z > 7 and largely ionized by z ∼ 5.5.
Xiangyu Jin +12 more
doaj +1 more source
The Intergalactic Medium [PDF]
Symposium - International Astronomical Union, 1982 The density of intergalactic gas may be an important parameter in the formation of extended radio sources. It may range from ∼ 0.1 particle cm−3 in the centres of some rich clusters of galaxies down to 10−8cm−3 or less in intercluster space. The possible influence of the intracluster gas surrounding NGC 1275 on its radio emission is discussed, and the ...
A. C. Fabian, A. K. Kembhavi
openaire +1 more source
Lower Metal Enrichment of Virialized Gas in Minihalos [PDF]
, 2007 We differentiate between the metal enrichment of the gas in virialized minihalos and that of the intergalactic medium at high redshift, pertinent to cosmological reionization, with the initial expectation that gas in the high density regions within ...
Cen, Renyue, Riquelme, Mario A.
core +1 more source
Metals in the intergalactic medium [PDF]
Astronomy & Astrophysics, 2004 We use high spectral resolution (R=45000) and high signal-to-noise ratio (S/N \~ 35-70 per pixel) spectra of 19 high-redshift (2.11. Our observations strongly suggest that the CIV/HI ratio decreases with decreasing tau(HI) with log[tau(CIV)]=1.3xlog[tau(HI)]-3.2. We do not detect CIV absorption statistically associated with gas of tau(HI)<1. However,
Aracil, Bastien +3 more
openaire +3 more sources