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Cited by 344

The DOI matches its Crossref record; 9 of the 9 references it cites were found in a registry or an index.

The physics of the intergalactic medium

Open access
Meiksin, Avery A.·2009·Reviews of Modern Physics

Abstract

Intergalactic space is filled with a pervasive medium of ionized gas, the intergalactic medium (IGM). A residual neutral fraction is detected in the spectra of quasistellar objects at both low and high redshifts, revealing a highly fluctuating medium with temperatures characteristic of photoionized gas. The statistics of the fluctuations are well reproduced by numerical gravity-hydrodynamics simulations within the context of standard cosmological structure formation scenarios. Thus, the study of the IGM offers an opportunity to probe the nature of the primordial density fluctuations on scales unavailable to other methods. The simulations also suggest that the IGM is the dominant reservoir of baryons produced by the Big Bang, and so the principal source of the matter from which galaxies formed. The detection of metal systems within the IGM shows that it was enriched by evolved stars early in its history, demonstrating an intimate connection between galaxy formation and the IGM. A comprehensive review of the current understanding of the structure and physical properties of the IGM and its relation to galaxies is presented, concluding with comments on prospects for furthering the study of the IGM using future ground-based facilities and space-based experiments.

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Metadata

Authors
Meiksin, A. A.
Venue
Reviews of Modern Physics
Published
2009-10-05
Volume
81
Issue
4
Pages
1405-1469
ISSN
  • 0034-6861 (ISSN-L)
  • 1539-0756
OpenAlex
W2153161644
Cited by
344
References
9
FWCI
7.88
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: The physics of the intergalactic medium. https://app.cochat.ai/papers/10.1103/revmodphys.81.1405
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Meiksin, A. A. (2009). The physics of the intergalactic medium. Reviews of Modern Physics. https://doi.org/10.1103/revmodphys.81.1405

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