The DOI matches its Crossref record; 64 of the 64 references it cites were found in a registry or an index.
The Search for the Missing Baryons at Low Redshift
Open accessAbstract
At low redshift, only about one-tenth of the known baryons lie in galaxies or the hot gas seen in galaxy clusters and groups. Models posit that these “missing baryons” are in gaseous form in overdense filaments that connect the much denser virialized groups and clusters. About 30% is cool (<10 5 K) and is detected in Lyα absorption studies, but about half is predicted to lie in the 10 5–10 7 K regime. Gas is detected in the 2–5 × 10 5 K range through OVI absorption studies (7% of the baryons) and possibly near 10 5 K from broad Lyα absorption (20% of the baryons). Hotter gas (0.5–2 × 10 6 K) is detected at zero redshift by OVII and OVIII Kα X-ray absorption, and the OVII line strengths seem to correlate with the Galactic soft X-ray background, so it is probably produced by Galactic halo gas, rather than a Local Group medium. There are no compelling detections of the intergalactic hot gas (0.5–10 × 10 6 K) either in absorption or emission and these upper limits are consistent with theoretical models. Claimed X-ray absorption lines are not confirmed, while most of the claims of soft emission are attributable to artifacts of background subtraction and field-flattening. The missing baryons should become detectable with moderate improvements in instrumental sensitivity.
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Cites
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Three‐Year Wilkinson Microwave Anisotropy Probe ( WMAP ) Observations: Implications for Cosmology
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Stellar masses and star formation histories for 105galaxies from the Sloan Digital Sky Survey
Kauffmann, G., Heckman, T. M., Simon White, D. M., Charlot, S., Tremonti, C., Brinchmann, J., Bruzual, G., Peng, E. W., Seibert, M., Bernardi, M., et al. (2003) · Monthly Notices of the Royal Astronomical Society · doi:10.1046/j.1365-8711.2003.06291.x · Cited by 2,417
XMM-Newton observatory: I. The spacecraft and operations
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Pulsar distances and the galactic distribution of free electrons
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Baryons in the Warm‐Hot Intergalactic Medium
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ROSAT Survey Diffuse X‐Ray Background Maps. II.
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“The first one varies in time and can produce dramatic background flares while the second varies around the Galaxy, and while that is roughly known (Snowden et al., 1997), it is not known with precision on the scale of Chandra or XMM fields.”
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Cited by
Structure and Formation of Elliptical and Spheroidal Galaxies
Bender, R. (2016) · doi:10.15781/t28g8fm0v · Cited by 555
Massive Warm/Hot Galaxy Coronae. II. Isentropic Model
Faerman, Y., Sternberg, A., & McKee, C. F. (2020) · The Astrophysical Journal · doi:10.3847/1538-4357/ab7ffc · Cited by 71
Metadata
- Authors
- Bregman, J. N.
- Venue
- Annual Review of Astronomy and Astrophysics
- Publisher
- Annual Reviews
- Published
- 2007-09-01
- Volume
- 45
- Issue
- 1
- Pages
- 221-259
- ISSN
- 0066-4146 (ISSN-L)
- 1545-4282
- OpenAlex
- W2097209648
- Cited by
- 334
- References
- 64
- FWCI
- 1.18
- Type
- journal article
- Language
- en
- Open access
- green
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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