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arXiv 1502.04976astro-ph.GAgr-qc
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波动暗物质的Tully-Fisher标度和边界条件

Tully-Fisher Scalings and Boundary Conditions for Wave Dark Matter

Andrew S. Goetz

摘要:

我们研究了一种称为波暗物质的暗物质理论,也称为标量场暗物质(SFDM)和玻色子星暗物质或玻色-爱因斯坦凝聚体(BEC)暗物质(也见轴子暗物质),以及它与塔利-费舍尔关系的关系。我们展示了两个边界条件,使球对称静态波暗物质晕Tully-Fisher-like关系:(BC 1)固定在波暗物质晕的外边缘的长度尺度引起的Tully-Fisher-like关系的形式$M/v^4=\text{constant}$。(BC2)将暗物质的密度固定在波暗物质晕的外边缘,会产生一个类似塔利-费舍尔的关系式,其形式为$M/v^{3.4}=\text{const}$。

英文摘要:

We investigate a theory of dark matter called wave dark matter, also known as scalar field dark matter (SFDM) and boson star dark matter or Bose-Einstein condensate (BEC) dark matter (also see axion dark matter), and its relation to the Tully-Fisher relation. We exhibit two boundary conditions that give rise to Tully-Fisher-like relations for spherically symmetric static wave dark matter halos: (BC1) Fixing a length scale at the outer edge of wave dark matter halos gives rise to a Tully-Fisher-like relation of the form $M/v^4=\text{constant}$. (BC2) Fixing the density of dark matter at the outer edge of wave dark matter halos gives rise to a Tully-Fisher-like relation of the form $M/v^{3.4}=\text{const}$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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