LARGE-SCALE FLUCTUATIONS IN THE He II Lyα FOREST AND He II REIONIZATION
نویسندگان
چکیده
منابع مشابه
He II REIONIZATION AND SOURCES OF METAGALACTIC IONIZATION
Intergalactic Lyα opacity suggests that H I was reionized at z ≈ 6, while He II reionization was delayed to z ≈ 3. Both epochs are in conflict with inferences from CMB optical depth (WMAP) which suggest early reionization at z = 10−20. One of the major contributions of FUSE to cosmological studies has been the detection of He II Lyα (“Gunn-Peterson”) absorption in the spectra of AGN at redshift...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2010
ISSN: 0004-637X,1538-4357
DOI: 10.1088/0004-637x/714/1/355