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A Gaussian process framework for modelling instrumental systematics: application to transmission spectroscopy

Abstract:

Transmission spectroscopy, which consists of measuring the wavelength-dependent absorption of starlight by a planet's atmosphere during a transit, is a powerful probe of atmospheric composition. However, the expected signal is typically orders of magnitude smaller than instrumental systematics and the results are crucially dependent on the treatment of the latter. In this paper, we propose a new method to infer transit parameters in the presence of systematic noise using Gaussian processes, a...

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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
Roberts, S More by this author
Osborne, M More by this author
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Journal:
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume:
419
Issue:
3
Pages:
2683-2694
Publication date:
2012-01-05
DOI:
EISSN:
1365-2966
ISSN:
0035-8711
URN:
uuid:bcf9dbdd-1ddd-4498-a0b6-e2f97587bff2
Source identifiers:
245963
Local pid:
pubs:245963

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