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Cited by 670Astrophysics and Star Formation StudiesStellar, planetary, and galactic studiesAstrophysics and Cosmic Phenomena

Interstellar bubbles

Castor, J., Weaver, R., McCray, R.·1975·The Astrophysical Journal
DOI 10.1086/181908
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Abstract

Early-type stars blow bubbles in the interstellar medium. The radii of the bubbles are typically 30 pc. Typical conditions in their interiors are temperatures of about 1 million K and densities of about 0.01 per cu cm. The dense shell of swept-up interstellar gas that surrounds them is likely to trap the ionization front and may also have an outer layer of H2. The column density of O VI in the interior is in accord with observations by the Copernicus ultraviolet telescope.

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Crossref · 10.1086/181908

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  • In the presence of a circumgalactic medium, the outflow becomes slower quickly over a time scale of about a Myr.

    “Clearly, the outflow becomes slower quickly in the presence of a CGM over a time scale of ∼ Myr.”

    From The Fermi/eROSITA bubbles: a look into the nuclear outflow from the Milky Way (2024) · cites this paper as Castor et al. 1975

  • The dynamical time-scale of the actual expansion depends on the speed of the shock driven by the hot gas and can be much lower.

    “The dynamical time-scale of the actual expansion would depend on the speed of the shock driven by this hot gas and can be much lower (Castor et al. 1975; Weaver et al. 1977).”

    From The Fermi/eROSITA bubbles: a look into the nuclear outflow from the Milky Way (2024) · cites this paper as Castor et al. 1975

  • Shocks driven by a constant energy source, namely winds, are self-similar and can be represented by the blast-wave equation with Eb = L t.

    “Shocks driven by a constant energy source (namely, winds) are also self-similar and can be represented by the equation 10 with the modification Eb = L t , where L is the power of the energy source (Castor et al. 1975; Weaver et al. 1977).”

    From The Fermi/eROSITA bubbles: a look into the nuclear outflow from the Milky Way (2024) · cites this paper as Castor et al. 1975

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Related

Authors
Castor, J., Weaver, R., & McCray, R.
ORCID
McCray, R.
Venue
The Astrophysical Journal
Publisher
American Astronomical Society
Published
1975-09
Volume
200
Pages
L107
ISSN
  • 0004-637X (ISSN-L)
  • 1538-4357
DOI
10.1086/181908
OpenAlex
W4237913875
Cited by
670
References
0
Citations by year
2026: 18 · 2025: 23 · 2024: 25 · 2023: 14 · 2022: 16 · 2021: 23 · 2020: 31 · 2019: 17 · 2018: 17 · 2017: 20 · 2016: 32 · 2015: 18 · 2014: 21 · 2013: 25 · 2012: 17
FWCI
9.10
Type
journal article
Language
en
Open access
closed
Locations
The Astrophysical Journal (publishedVersion)
Topics
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Astrophysics and Star Formation Studies
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Stellar, planetary, and galactic studies
  • Physical Sciences › Physics and Astronomy › Nuclear and High Energy Physics › Astrophysics and Cosmic Phenomena
Keywords
early-type stars, stellar winds, interstellar medium, ionization front, high-temperature plasma

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