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2007MNRAS.379.1097B - Mon. Not. R. Astron. Soc., 379, 1097-1107 (2007/August-2)
Near-infrared spectroscopic search for the close orbiting planet HD 75289b.
BARNES J.R., LEIGH C.J., JONES H.R.A., BARMAN T.S., PINFIELD D.J., COLLIER CAMERON A. and JENKINS J.S.
Abstract (from CDS):
Because the absorption signature lies buried in the noise of a single exposure we apply a multiline deconvolution to the spectral lines available in order to boost the effective signal-to-noise ratio (S/N) of the data. The wavelength coverage of 80 Å is expected to contain ∼100 planetary lines, enabling a mean line with S/N of 800 to be achieved after deconvolution. We are nevertheless unable to detect the presence of the planet in the data and carry out further simulations to show that broader wavelength coverage should enable a planet like HD 75289b to be detected with 99.9 per cent confidence. We investigate the sensitivity of our method and estimate detection tolerances for mismatches between observed and model planetary atmospheres.
Abstract Copyright: 2007 The Authors. Journal compilation © 2007 RAS
Journal keyword(s): line: profiles - methods: data analysis - techniques: spectroscopic - stars: individual: HD 75289 - stars: late-type - planetary systems
Simbad objects: 10
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