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Anisotropic matter in cosmology: locally rotationally symmetric Bianchi I and VII o models

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Anisotropic matter in cosmology: locally rotationally symmetric Bianchi I and VII o models. / Sloan, David.
In: Classical and Quantum Gravity, Vol. 33, No. 10, 105011, 19.04.2016.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Sloan, D 2016, 'Anisotropic matter in cosmology: locally rotationally symmetric Bianchi I and VII o models', Classical and Quantum Gravity, vol. 33, no. 10, 105011. https://doi.org/10.1088/0264-9381/33/10/105011

APA

Sloan, D. (2016). Anisotropic matter in cosmology: locally rotationally symmetric Bianchi I and VII o models. Classical and Quantum Gravity, 33(10), Article 105011. https://doi.org/10.1088/0264-9381/33/10/105011

Vancouver

Sloan D. Anisotropic matter in cosmology: locally rotationally symmetric Bianchi I and VII o models. Classical and Quantum Gravity. 2016 Apr 19;33(10):105011. doi: 10.1088/0264-9381/33/10/105011

Author

Sloan, David. / Anisotropic matter in cosmology : locally rotationally symmetric Bianchi I and VII o models. In: Classical and Quantum Gravity. 2016 ; Vol. 33, No. 10.

Bibtex

@article{2544617d79714cc2a65ac70964249dc0,
title = "Anisotropic matter in cosmology: locally rotationally symmetric Bianchi I and VII o models",
abstract = "We examine the behaviour of homogeneous, anisotropic space-times, specifically the locally rotationally symmetric Bianchi types I and VII o in the presence of anisotropic matter. By finding an appropriate constant of the motion, and transforming the equations of motion we are able to provide exact solutions in the presence of perfect fluids with anisotropic pressures. The solution space covers matter consisting of a single perfect fluid which satisfies the weak energy condition and is rich enough to contain solutions which exhibit behaviour which is qualitatively distinct from the isotropic sector. Thus we find that there is more {\textquoteleft}matter that matters{\textquoteright} close to a homogeneous singularity than the usual stiff fluid. Example metrics are given for cosmologies whose matter sources are magnetic fields, relativistic particles, cosmic strings and domain walls.",
author = "David Sloan",
year = "2016",
month = apr,
day = "19",
doi = "10.1088/0264-9381/33/10/105011",
language = "English",
volume = "33",
journal = "Classical and Quantum Gravity",
issn = "0264-9381",
publisher = "IOP Publishing",
number = "10",

}

RIS

TY - JOUR

T1 - Anisotropic matter in cosmology

T2 - locally rotationally symmetric Bianchi I and VII o models

AU - Sloan, David

PY - 2016/4/19

Y1 - 2016/4/19

N2 - We examine the behaviour of homogeneous, anisotropic space-times, specifically the locally rotationally symmetric Bianchi types I and VII o in the presence of anisotropic matter. By finding an appropriate constant of the motion, and transforming the equations of motion we are able to provide exact solutions in the presence of perfect fluids with anisotropic pressures. The solution space covers matter consisting of a single perfect fluid which satisfies the weak energy condition and is rich enough to contain solutions which exhibit behaviour which is qualitatively distinct from the isotropic sector. Thus we find that there is more ‘matter that matters’ close to a homogeneous singularity than the usual stiff fluid. Example metrics are given for cosmologies whose matter sources are magnetic fields, relativistic particles, cosmic strings and domain walls.

AB - We examine the behaviour of homogeneous, anisotropic space-times, specifically the locally rotationally symmetric Bianchi types I and VII o in the presence of anisotropic matter. By finding an appropriate constant of the motion, and transforming the equations of motion we are able to provide exact solutions in the presence of perfect fluids with anisotropic pressures. The solution space covers matter consisting of a single perfect fluid which satisfies the weak energy condition and is rich enough to contain solutions which exhibit behaviour which is qualitatively distinct from the isotropic sector. Thus we find that there is more ‘matter that matters’ close to a homogeneous singularity than the usual stiff fluid. Example metrics are given for cosmologies whose matter sources are magnetic fields, relativistic particles, cosmic strings and domain walls.

U2 - 10.1088/0264-9381/33/10/105011

DO - 10.1088/0264-9381/33/10/105011

M3 - Journal article

VL - 33

JO - Classical and Quantum Gravity

JF - Classical and Quantum Gravity

SN - 0264-9381

IS - 10

M1 - 105011

ER -