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Cosmic-Ray Heating of the Interstellar Gas
Abstract
We present a~mode1 of the interstellar medium based on detailed calculations of heating by low-energy cosmic rays. The model contains two thermally stable gas phases that coexist in pressure equilibrium, one at T = 1O~ ° K and one at T <300° K. The hot gas occupies most of interstellar space. Gravitation in the z-direction compresses about 75 per cent of the gas into the cool, dense phase to form clouds. By choosing three parameters (the cosmic-ray ionization rate, the amount by which trace elements are de- pleted in sticking to dust grains, and the magnetic-field strength), we are able to predict six previously unrelated observational parameters to within a factor of 2
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Citations
Cited by
Star Formation in the Milky Way and Nearby Galaxies
Kennicutt, R. C., & Evans, N. J. (2012) · Annual Review of Astronomy and Astrophysics · doi:10.1146/annurev-astro-081811-125610 · Cited by 2,902
“The neutral gas is subject to a thermal instability that predicts segregation into the warm neutral and cold neutral media (CNM), the latter with n > 10 cm−3 and TK < 100 K (Field et al. 1969).”
BackgroundControl of star formation by supersonic turbulence
Mac Low, M.-M., & Klessen, R. S. (2004) · Reviews of Modern Physics · doi:10.1103/revmodphys.76.125 · Cited by 1,761
The interstellar environment of our galaxy
Ferrière, K. M. (2001) · Reviews of Modern Physics · doi:10.1103/revmodphys.73.1031 · Cited by 1,019
Photodissociation regions in the interstellar medium of galaxies
Hollenbach, D. J., & Tielens, A. G. G. M. (1999) · Reviews of Modern Physics · doi:10.1103/revmodphys.71.173 · Cited by 801
Making Galaxies In a Cosmological Context: the need for early stellar feedback
Stinson, G. S., Brook, C., Macciò, A. V., Wadsley, J., Quinn, T. R., & Couchman, H. M. P. (2013) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/sts028 · Cited by 431
Metadata
- Authors
- Field, G. B., Goldsmith, D. W., & Habing, H. J.
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 1969-03
- Volume
- 155
- Pages
- L149
- ISSN
- 0004-637X (ISSN-L)
- 1538-4357
- OpenAlex
- W1976676831
- Cited by
- 827
- References
- 0
- FWCI
- 23.65
- Type
- journal article
- Language
- en
- Open access
- closed
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- Field, G. B., Goldsmith, D. W., & Habing, H. J. (1969). Cosmic-Ray Heating of the Interstellar Gas. The Astrophysical Journal. https://doi.org/10.1086/180324
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
