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No Evidence for Lyman-alpha Emission in Spectroscopy of z > 7 Candidate Galaxies

Abstract:

We present Gemini/GNIRS spectroscopic observations of 4 z-band (z~7) dropout galaxies and VLT/XSHOOTER observations of one z-band dropout and 3 Y-band (z~8-9) dropout galaxies in the Hubble Ultra Deep Field, which were selected with Wide Field Camera 3 imaging on the Hubble Space Telescope. We find no evidence of Lyman-alpha emission with a typical 5-sigma sensitivity of 5X10^-18erg/cm^2/s, and we use the upper limits on Lyman-alpha flux and the broad-band magnitudes to constrain the rest-fra...

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Publication status:
Published

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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Astrophysics
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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Astrophysics
Wilkins, SM More by this author
Stanway, ER More by this author
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Journal:
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume:
427
Issue:
4
Pages:
3055-3070
Publication date:
2012-08-29
DOI:
EISSN:
1365-2966
ISSN:
0035-8711
URN:
uuid:11f1c29d-b030-4052-b052-925c74e38ec1
Source identifiers:
353417
Local pid:
pubs:353417
Language:
English
Keywords:

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