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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
Peer review status:
Peer reviewed

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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Astrophysics
Role:
Author
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Institution:
University of Oxford
Oxford college:
All Souls College
Role:
Author
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Institution:
University of Oxford
Oxford college:
Exeter College
Role:
Author
Publisher:
Oxford University Press
Journal:
Monthly Notices of the Royal Astronomical Society More from this journal
Issue:
3
Publication date:
2012-01-21
Acceptance date:
2011-09-28
DOI:
EISSN:
0035-8711
ISSN:
0035-8711 and 1365-2966
Keywords:
Pubs id:
pubs:245963
UUID:
uuid:6d746526-dc00-4120-ac83-2f6ce1e90b58
Local pid:
pubs:245963
Deposit date:
2016-11-28

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