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A new look at NICMOS transmission spectroscopy: no conclusive evidence for molecular features

Abstract:

We present a re-analysis of archival HST/NICMOS transmission spectroscopy of the exoplanet system, HD 189733, from which detections of several molecules have been claimed. As expected, we can replicate the transmission spectrum previously published when we use an identical model for the systematic effects, although the uncertainties are larger as we use a residual permutation algorithm in an effort to account for instrumental systematics. We also find that the transmission spectrum is conside...

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Publication status:
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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Astrophysics
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Astrophysics
Journal:
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume:
411
Issue:
4
Pages:
2199-2213
Publication date:
2010-12-03
DOI:
EISSN:
1365-2966
ISSN:
0035-8711
URN:
uuid:f5b5ac81-9a34-41b1-bb8d-13e6c2593376
Source identifiers:
159200
Local pid:
pubs:159200
Language:
English
Keywords:

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