Note on the collapse of magnetic interstellar clouds

T. Ch. Mouschovias; Jr. Spitzer L.

doi:10.1086/154835

Note on the collapse of magnetic interstellar clouds

Research output: Contribution to journal › Article › peer-review

Abstract

Virial-theorem expressions for clouds on the verge of gravitational collapse are fitted to numerical values obtained with exact equilibrium computations for magnetic interstellar isothermal clouds subject to the pressure of the intercloud medium. The minimum mass needed for gravitational collapse is 0.53 times the virial-theorem value obtained for a homogeneous magnetic sphere, while the maximum external pressure, Pm, at which equilibrium is possible is 0.60 times the virial-theorem value. Subject heading: interstellar: magnetic fields

Original language	English (US)
Journal	The Astrophysical journal
Volume	210
DOIs	https://doi.org/10.1086/154835
State	Published - Dec 1976
Externally published	Yes

Keywords

Cloud Physics
Gravitational Collapse
Interstellar Gas
Interstellar Magnetic Fields
Magnetic Clouds
Critical Mass
Virial Theorem
Astrophysics

Online availability

10.1086/154835

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title = "Note on the collapse of magnetic interstellar clouds",

abstract = "Virial-theorem expressions for clouds on the verge of gravitational collapse are fitted to numerical values obtained with exact equilibrium computations for magnetic interstellar isothermal clouds subject to the pressure of the intercloud medium. The minimum mass needed for gravitational collapse is 0.53 times the virial-theorem value obtained for a homogeneous magnetic sphere, while the maximum external pressure, Pm, at which equilibrium is possible is 0.60 times the virial-theorem value. Subject heading: interstellar: magnetic fields",

keywords = "Cloud Physics, Gravitational Collapse, Interstellar Gas, Interstellar Magnetic Fields, Magnetic Clouds, Critical Mass, Virial Theorem, Astrophysics",

author = "Mouschovias, {T. Ch.} and {Spitzer L.}, Jr.",

year = "1976",

month = dec,

doi = "10.1086/154835",

language = "English (US)",

volume = "210",

journal = "The Astrophysical journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

}

TY - JOUR

T1 - Note on the collapse of magnetic interstellar clouds

AU - Mouschovias, T. Ch.

AU - Spitzer L., Jr.

PY - 1976/12

Y1 - 1976/12

N2 - Virial-theorem expressions for clouds on the verge of gravitational collapse are fitted to numerical values obtained with exact equilibrium computations for magnetic interstellar isothermal clouds subject to the pressure of the intercloud medium. The minimum mass needed for gravitational collapse is 0.53 times the virial-theorem value obtained for a homogeneous magnetic sphere, while the maximum external pressure, Pm, at which equilibrium is possible is 0.60 times the virial-theorem value. Subject heading: interstellar: magnetic fields

AB - Virial-theorem expressions for clouds on the verge of gravitational collapse are fitted to numerical values obtained with exact equilibrium computations for magnetic interstellar isothermal clouds subject to the pressure of the intercloud medium. The minimum mass needed for gravitational collapse is 0.53 times the virial-theorem value obtained for a homogeneous magnetic sphere, while the maximum external pressure, Pm, at which equilibrium is possible is 0.60 times the virial-theorem value. Subject heading: interstellar: magnetic fields

KW - Cloud Physics

KW - Gravitational Collapse

KW - Interstellar Gas

KW - Interstellar Magnetic Fields

KW - Magnetic Clouds

KW - Critical Mass

KW - Virial Theorem

KW - Astrophysics

U2 - 10.1086/154835

DO - 10.1086/154835

M3 - Article

SN - 0004-637X

VL - 210

JO - The Astrophysical journal

JF - The Astrophysical journal

ER -

Note on the collapse of magnetic interstellar clouds

Abstract

Keywords

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