New Measurements of the Ionizing Ultraviolet Background over 2 < z < 5 and Implications for Hydrogen Reionization
New Measurements of the Ionizing Ultraviolet Background over 2 < z < 5 and Implications for Hydrogen Reionization
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DOI:
10.1093/mnras/stt1610
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发表时间:
2013-07
影响因子:
4.8
通讯作者:
G. Becker;J. Bolton
中科院分区:
文献类型:
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作者:
G. Becker;J. Bolton
We present new measurements of the intensity of the ionizing ultraviolet background and the global emissivity of ionizing photons over 2 4, and possibly at all redshifts z > 2.4. Our results suggest that the globally-averaged ionizing "efficiency" of star-forming galaxies increases substantially with redshift over 3.2 5.