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25 April 2024 |
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Article overview
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Direct evidence for an early reionization of the Universe? | | N. Panagia
; S.M. Fall
; B. Mobasher
; M. Dickinson
; H.C. Ferguson
; M. Giavalisco
; D. Stern
; T. Wiklind
; | | Date: |
20 Sep 2005 | | Subject: | astro-ph | | Affiliation: | ESA/STScI, STScI, NOAO/Tucson, JPL | | Abstract: | We examine the possible reionization of the intergalactic medium (IGM) by the source UDF033238.7-274839.8 (hereafter HUDF-JD2), which was discovered in deep {it HST}/VLT/{it Spitzer} images obtained as part of the Great Observatory Origins Deep Survey and {it Hubble} Ultra-Deep Field projects. Mobasher et al (2005) have identified HUDF-JD2 as a massive ($sim6 imes10^{11}M_odot$) post-starburst galaxy at redshift z$gtrsim6.5$. We find that HUDF-JD2 may be capable of reionizing its surrounding region of the Universe, starting the process at a redshift as high as z$approx 15 pm5$. | | Source: | arXiv, astro-ph/0509605 | | Services: | Forum | Review | PDF | Favorites | |
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