Late-time phase transition and the galactic halo as a Bose liquid. II. The effect of visible matter.

Late-time phase transition and the galactic halo as a Bose liquid. II. The effect of visible matter.
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后期相变和作为玻色液体的银河晕。

DOI:
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发表时间:
1994
期刊:
Physical Review D, Particles and fields
影响因子:
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通讯作者:
S. Sin
S. Sin
中科院分区:
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文献类型:
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作者:
S. U. Ji;S. Sin

文献摘要

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在之前的工作中,我们研究了星系的旋转曲线,假设暗物质由出现在“晚时相变”理论中的超轻玻色子组成。在此基础上,我们考虑了可见物质的影响,并对旋转曲线的类型进行了分类,因为我们改变了可见物质的质量和延伸的比例。我们表明,在具有平坦旋转曲线的星系中,可见物质的质量分数为2%char21{}10%,并且它被限制在距离分数10%char21{}20%之内。
In a previous work, we investigated the rotation curves of galaxies assuming that the dark matter consists of ultralight bosons appearing in ``late-time phase transition' theory. Generalizing this work, we consider the effect of visible matter and classify the types of rotation curves as we vary the fraction of the mass and extension of visible matter. We show that visible matter, in galaxies with flat rotation curves, has a mass fraction 2%char21{}10% and it is confined within the distance fraction 10%char21{}20%.