Analysis of thermal emission from the nightside of Venus at 1.51 and 1.55 microns

C.F. Wilson , C.C.C. Tsang , P.G.J. Irwin , F.W. Taylor , B. Bézard , S. Erard , R.W. Carlson , P. Drossart , G. Piccioni , R.C. Holmes

We present radiative transfer modelling of thermal emission from the nightside of Venus in two ‘spectral window' regions at 1.51 and 1.55 μm. The first discovery of these windows, reported by Erard et al. 2009, was achieved using a principal component analysis of data from the VIRTIS instrument on Venus Express. These windows are spectrally narrow, with a full-width at half-maximum of ∼20 nm, and less bright than the well-known 1.7 and 2.3 μm spectral windows by two orders of magnitude.

Mots clés: Venus; Infrared; Radiative transfer; Venus exress; VIRTIS

C.F. Wilson, C.C.C. Tsang, P.G.J. Irwin, F.W. Taylor, B. Bézard, et al.. Analysis of thermal emission from the nightside of Venus at 1.51 and 1.55 microns. Icarus, 2009, 201 (2), pp.814. ⟨10.1016/j.icarus.2009.03.010⟩. ⟨hal-00533509⟩