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2010MNRAS.401..445B - Mon. Not. R. Astron. Soc., 401, 445-454 (2010/January-1)
A search for molecules in the atmosphere of HD 189733b.
BARNES J.R., BARMAN T.S., JONES H.R.A., BARBER R.J., HANSEN B.M.S., PRATO L., RICE E.L., LEIGH C.J., COLLIER CAMERON A. and PINFIELD D.J.
Abstract (from CDS):
Finally, we investigate the effect of model uncertainties on our ability to reliably recover a planetary signal. The use of incorrect temperature, model opacity wavelengths and model temperature-pressure profiles have important consequences for the least squares deconvolution procedure that we use to boost the signal-to-noise ratio (S/N) in our spectral time-series observations. We find that mismatches between the empirical and model planetary spectrum may weaken the significance of a detection by ∼30-60 per cent, thereby potentially impairing our ability to recover a planetary signal with high confidence.
Abstract Copyright: © 2009 The Authors. Journal compilation © 2009 RAS
Journal keyword(s): line: profiles - methods: data analysis - techniques: spectroscopic - stars: individual: HD 189733 - stars: late-type - planetary systems
Simbad objects: 3
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