Cosmic Reionization on Computers: Properties of the Post-reionization IGM

被引:35
|
作者
Gnedin, Nickolay Y. [1 ,2 ,3 ]
Becker, George D. [4 ]
Fan, Xiaohui [5 ]
机构
[1] Fermilab Natl Accelerator Lab, Ctr Particle Astrophys, POB 500, Batavia, IL 60510 USA
[2] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA
[3] Univ Chicago, Dept Astron & Astrophys, 5640 S Ellis Ave, Chicago, IL 60637 USA
[4] Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218 USA
[5] Univ Arizona, Steward Observ, Tucson, AZ 85721 USA
来源
ASTROPHYSICAL JOURNAL | 2017年 / 841卷 / 01期
基金
美国国家科学基金会; 美国能源部;
关键词
cosmology: theory; intergalactic medium; large-scale structure of universe; methods: numerical; LYMAN BREAK GALAXIES; SIMILAR-TO; 6; INTERGALACTIC MEDIUM; APPROACHING REIONIZATION; NEUTRAL HYDROGEN; ALPHA EMISSION; BIG-BANG; REDSHIFT; ABSORPTION; EVOLUTION;
D O I
10.3847/1538-4357/aa6c24
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present a comparison between several observational tests of the post-reionization intergalactic medium and the numerical simulations of reionization completed under the Cosmic Reionization On Computers (CROC) project. The CROC simulations match the gap distribution reasonably well, and also provide a good match for the distribution of peak heights, but there is a notable lack of wide peaks in the simulated spectra and the flux-probability distribution functions are poorly matched in the narrow redshift interval 5.5 < z < 5.7, with the match at other redshifts being significantly better, albeit not exact. Both discrepancies are related: simulations show more opacity than the data.
引用
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页数:7
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