Limits on the cosmological abundance of supermassive compact objects from a search for multiple imaging in compact radio sources.
Limits on the cosmological abundance of supermassive compact objects from a search for multiple imaging in compact radio sources.
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DOI：
10.1103/physrevlett.86.584
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发表时间：
2001-01
影响因子：
8.6
通讯作者：
P. Wilkinson;D. R. Henstock;I. Browne;A. Polatidis;P. Augusto;A. Readhead;T. Pearson;W. Xu;G. Taylor;R. U. O. Manchester;Jodrell Bank Observatory;O. Observatory;Universidade da Madeira;C. I. O. Technology.;National Radio Astronomy Observatory;Netherlands Foundation for Radioastronomy
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文献类型：
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作者：
P. Wilkinson;D. R. Henstock;I. Browne;A. Polatidis;P. Augusto;A. Readhead;T. Pearson;W. Xu;G. Taylor;R. U. O. Manchester;Jodrell Bank Observatory;O. Observatory;Universidade da Madeira;C. I. O. Technology.;National Radio Astronomy Observatory;Netherlands Foundation for Radioastronomy
使用甚长基线干涉测量法，我们已经搜索了300个致密射电源的样本，以寻找引力透镜产生的多重成像的例子;没有发现分离角范围为1.5- 50毫弧秒的多重图像。这个零结果允许我们对星系际超大质量致密天体的宇宙学丰度进行限制，其质量范围约为10（6）M（圆圈中点）至10（8）M（圆圈中点）;这样的天体不能超过闭合密度的约1%（95%置信度）。因此，大爆炸后不久形成的均匀分布的超大质量黑洞群对宇宙的暗物质含量没有显着贡献。
Using very long baseline interferometry we have searched a sample of 300 compact radio sources for examples of multiple imaging produced by gravitational lensing; no multiple images were found with separations in the angular range 1.5--50 milliarcsec. This null result allows us to place a limit on the cosmological abundance of intergalactic supermassive compact objects in the mass range approximately 10(6)M( middle dot in circle) to approximately 10(8)M( middle dot in circle); such objects cannot make up more than approximately 1% of the closure density ( 95% confidence). A uniformly distributed population of supermassive black holes forming soon after the big bang does not, therefore, contribute significantly to the dark matter content of the Universe.