Rapid cosmological simulations in Scalar Field Dark Matter models
The process of structure formation in the Universe can be explained by means of the gravitational instability of the different matter components, in particular that of the so-called dark matter field. In this work, we consider that dark matter can be described by an ultra-light scalar field minimall...
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Published in | Journal of physics. Conference series Vol. 1030; no. 1; pp. 12007 - 12012 |
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Language | English |
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Abstract | The process of structure formation in the Universe can be explained by means of the gravitational instability of the different matter components, in particular that of the so-called dark matter field. In this work, we consider that dark matter can be described by an ultra-light scalar field minimally coupled to gravity, and its gravitational instability in an expanding universe is studied with the help of standard techniques for fluid matter components. Analytical and numerical solutions are shown, for both linear and non-linear perturbations, and compared with those of the standard cold dark matter model. We conclude that non-linear perturbations of the scalar field are indistinguishable from those of cold dark matter as long as the field mass is larger than 10−25eV. |
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AbstractList | The process of structure formation in the Universe can be explained by means of the gravitational instability of the different matter components, in particular that of the so-called dark matter field. In this work, we consider that dark matter can be described by an ultra-light scalar field minimally coupled to gravity, and its gravitational instability in an expanding universe is studied with the help of standard techniques for fluid matter components. Analytical and numerical solutions are shown, for both linear and non-linear perturbations, and compared with those of the standard cold dark matter model. We conclude that non-linear perturbations of the scalar field are indistinguishable from those of cold dark matter as long as the field mass is larger than 10−25eV. |
Author | Martínez-Carrillo, Rebeca Arturo Ureña-López, L. |
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Cites_doi | 10.1111/j.1365-2966.2012.20695.x 10.1111/j.1365-2966.2005.09655.x 10.1111/j.1365-2966.2012.21888.x 10.1103/PhysRevLett.113.261302 10.1038/nphys2996 10.1086/312287 10.1016/S1384-1076(01)00042-2 10.1111/j.1745-3933.2011.01074.x 10.1155/2010/789293 10.1086/176550 10.1088/0264-9381/17/13/101 10.1051/0004-6361/201424909 10.1007/978-3-319-02063-1_9 10.1086/176788 10.1016/S0370-1573(02)00135-7 10.1088/1475-7516/2013/06/036 10.1088/1475-7516/2016/07/048 10.1088/1742-6596/378/1/012012 10.1086/307643 10.1006/jcph.1997.5723 |
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SubjectTerms | Astronomical models Big Bang theory Cold dark matter Dark matter Expanding universe theory Gravitational instability Perturbation Physics Scalars Universe |
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Title | Rapid cosmological simulations in Scalar Field Dark Matter models |
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