Large-Scale Distribution of Total Mass versus Luminous Matter from Baryon Acoustic Oscillations: First Search in the Sloan Digital Sky Survey III Baryon Oscillation Spectroscopic Survey Data Release 10.
Large-Scale Distribution of Total Mass versus Luminous Matter from Baryon Acoustic Oscillations: First Search in the Sloan Digital Sky Survey III Baryon Oscillation Spectroscopic Survey Data Release 10.
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重子声振荡总质量与发光物质的大规模分布:斯隆数字巡天 III 重子振荡光谱巡天数据第 10 版中的首次搜索。
DOI:
10.1103/physrevlett.116.201302
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发表时间:
2016
影响因子:
8.6
通讯作者:
Soumagnac MT
中科院分区:
文献类型:
--
作者:
Soumagnac MT
Baryon acoustic oscillations in the early Universe are predicted to leave an as yet undetected signature on the relative clustering of total mass versus luminous matter. A detection of this effect would provide an important confirmation of the standard cosmological paradigm and constrain alternatives to dark matter as well as nonstandard fluctuations such as compensated isocurvature perturbations (CIPs). We conduct the first observational search for this effect, by comparing the number-weighted and luminosity-weighted correlation functions, using the SDSS-III BOSS Data Release 10 CMASS sample. When including CIPs in our model, we formally obtain evidence atof the relative clustering signature and a limit that matches the existing upper limits on the amplitude of CIPs. However, various tests suggest that these results are not yet robust, perhaps due to systematic biases in the data. The method developed in this Letter used with more accurate future data such as that from DESI, is likely to confirm or disprove our preliminary evidence.
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DOI:
--
发表时间:
2013
期刊:
影响因子:
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作者:
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通讯作者:
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DOI:
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发表时间:
1983
期刊:
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作者:
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DOI:
10.1088/0067-0049/211/2/17
发表时间:
2014
期刊:
The Astrophysical Journal Supplement Series
影响因子:
--
作者:
Ahn C
通讯作者:
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DOI:
--
发表时间:
2013
期刊:
影响因子:
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作者:
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通讯作者:
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