The NEMESIS planetary atmosphere radiative transfer and retrieval tool by Irwin, P, Teanby, N, de Kok, R, Fletcher, L, Howett, C, Tsang, C, Wilson, C, Calcutt, S, Nixon, C, Parrish, P

On the potential of the EChO mission to characterise gas giant atmospheres by Barstow, J, Aigrain, S, Irwin, P, Bowles, N, Fletcher, L, Lee, J

“…We use the NEMESIS radiative transfer and retrieval tool (Irwin et al. 2008, Lee et al. 2012) to explore the potential of the proposed EChO mission to solve the retrieval problem for a range of H2-He planets orbiting different stars. …”

Probing Saturn's tropospheric cloud with Cassini/VIMS by Eberhardt, J, Irwin, P, Fletcher, L, Giles, R, Merlet, C, Barstow, J

“…We average nightside spectra from 2006 over latitude circles and model the spectral limb darkening using the NEMESIS radiative transfer and retrieval tool. We present our best-fit deep cloud model for latitudes −40◦ < λ < 50◦ , along with retrieved abundances for NH3, PH3 and AsH3. …”

Optimal estimation retrievals of the atmospheric structure and composition of HD189733b from secondary eclipse spectroscopy by Lee, J, Fletcher, L, Irwin, P

“…The development of a suite of radiative transfer and retrieval tools for exoplanet atmospheres is described, building upon a retrieval algorithm which is extensively used in the study of our own Solar system. …”

Spectral analysis of Uranus' 2014 bright storm with VLT/SINFONI by Irwin, P, Fletcher, L, Read, P, Tice, D, de Pater, I, Orton, G, Teanby, N, Davis, G

“…The observed spectra were analysed with the radiative transfer and retrieval code, NEMESIS (Irwin et al. [2008]. …”

Neptune's atmospheric composition from AKARI infrared spectroscopy by Fletcher, L, Drossart, P, Burgdorf, M, Orton, G, Encrenaz, T

“…Mid-infrared spectra (SG1 and SG2 channels of AKARI/IRC), with spectral resolutions of 47 and 34 respectively, were modelled using a line-by-line radiative transfer code to determine the temperature structure between 1-1000 μbar and the abundances of CH 4, CH3D and higher-order hydrocarbons. …”

Long-term evolution of the aerosol debris cloud produced by the 2009 impact on Jupiter by Sánchez-Lavega, A, Orton, G, Hueso, R, Pérez-Hoyos, S, Fletcher, L, García-Melendo, E, Gomez-Forrellad, J, de Pater, I, Wong, M, Hammel, H, Yanamandra-Fisher, P, Simon-Miller, A, Barrado-Izagirre, N, Marchis, F, Mousis, O, Ortiz, J, García-Rojas, J, Cecconi, M, Clarke, J, Noll, K, Pedraz, S, Wesley, A, Kalas, P, McConnell, N, Golisch, W

“…The reflectivity of the impact cloud decreased exponentially with a characteristic timescale of 15 days; we can explain this behavior with a radiative transfer model of the cloud optical depth coupled to an advection model of the cloud dispersion by the wind shears. …”

Neptune at summer solstice: Zonal mean temperatures from ground-based observations, 2003-2007 by Fletcher, L, de Pater, I, Orton, G, Hammel, H, Sitko, M, Irwin, P

“…Our aim was to analyse imaging and spectroscopy from multiple different sources using a single self-consistent radiative-transfer model to assess the magnitude of seasonal variability. …”

Neptune's global circulation deduced from multi-wavelength observations by de Pater, I, Fletcher, L, Luscz-Cook, S, DeBoer, D, Butler, B, Hammel, H, Sitko, M, Orton, G, Marcus, P

“…At radio wavelengths we mapped the planet in discrete filters between 0.7 and 6. cm.We analyzed each dataset separately with a radiative-transfer program that is optimized for that particular wavelength regime. …”

Uranus' cloud particle properties and latitudinal methane variation from IRTF SpeX observations by Tice, D, Irwin, P, Fletcher, L, Teanby, N, Hurley, J, Orton, G, Davis, G

“…We found that these same retrievals strongly preferred tropospheric cloud particles of 1.35-μm radii, and observed cloud top height to increase away from the equator in the case of latitudinally invariant methane abundance.Latitudinal methane variability was also considered, both through a reflectivity study at the 825-nm collision-induced hydrogen absorption feature, as well as through radiative transfer analysis, using forward modeling and retrievals of cloud properties and methane abundance. …”

Constraints on Neptune’s haze structure and formation from VLT observations in the H-band by Toledo, D, Irwin, PGJ, Rannou, P, Fletcher, L, Teanby, N, Wong, M, Orton, G

“…These simulations were coupled to a radiative-transfer and retrieval code (NEMESIS) to model spectral observations of Neptune in the H-band performed by the SINFONI Integral Field Unit Spectrometer on the Very Large Telescope (VLT) in 2013. …”

The application of new methane line absorption data to Gemini-N/NIFS and KPNO/FTS observations of Uranus' near-infrared spectrum by Irwin, P, de Bergh, C, Courtin, R, Bezard, B, Teanby, N, Davis, G, Fletcher, L, Orton, G, Calcutt, S, Tice, D, Hurley, J

“…Quant. Spectrosc. Radiat. Transfer 111, 1141-1151; Wang, L., Kassi, S., Campargue, A. [2010]. …”