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Rayleigh scattering in the transmission spectrum of HAT-P-18b

Abstract:

We have performed ground-based transmission spectroscopy of the hot Jupiter HAT-P-18b using the ACAM instrument on the William Herschel Telescope (WHT). Differential spectroscopy over an entire night was carried out at a resolution of R ≈ 400 using a nearby comparison star. We detect a blueward slope extending across our optical transmission spectrum that runs from 4750 to 9250 Å. The slope is consistent with Rayleigh scattering at the equilibrium temperature of the planet (852 K). We do not ...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1093/mnras/stx752

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Publisher:
Oxford University Press Publisher's website
Journal:
Monthly Notices of the Royal Astronomical Society Journal website
Volume:
468
Issue:
4
Pages:
3907-3916
Publication date:
2017-03-28
Acceptance date:
2017-03-24
DOI:
EISSN:
1365-2966
ISSN:
0035-8711
Source identifiers:
718584
Keywords:
Pubs id:
pubs:718584
UUID:
uuid:89e1c15d-76df-43a8-aab5-518167c31dfa
Local pid:
pubs:718584
Deposit date:
2017-11-06

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