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Dark matter superfluidity and galactic dynamics
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DOI：10.1016/j.physletb.2015.12.054.png)
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摘要
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We propose a unified framework that reconciles the stunning success of MOND on galactic scales with the triumph of the Lambda CDM model on cosmological scales. This is achieved through the physics of superfluidity. Dark matter consists of self-interacting axion-like particles that thermalize and condense to form a superfluid in galaxies, with similar to mK critical temperature. The superfluid phonons mediate a MOND acceleration on baryonic matter. Our framework naturally distinguishes between galaxies (where MOND is successful) and galaxy clusters (where MOND is not): dark matter has a higher temperature in clusters, and hence is in a mixture of superfluid and normal phase. The rich and well-studied physics of superfluidity leads to a number of striking observational signatures. (C) 2015 The Authors. Published by Elsevier B.V.
Keyword:
MODIFIED NEWTONIAN DYNAMICS
DWARF SPHEROIDALS
LIQUID-HELIUM
MILKY
GALAXIES
MOND
MASS
PHENOMENOLOGY
SUBSTRUCTURE
SATELLITES
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期刊
IF:
4.5
论文数:
3.2W
被引数:
7.3W
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