Planetary atmosphere observation analysis

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The thermal structure of the Venus atmosphere: Intercomparison of Venus Express and ground based observations of vertical temperature and density profiles

ICARUS 294 (2017) 124-155

Authors:

SS Limaye, S Lebonnois, A Mahieux, M Paetzold, S Bougher, S Bruinsma, S Chamberlain, RT Clancy, J-C Gerard, G Gilli, D Grassi, R Haus, M Herrmann, T Imamura, E Kohler, P Krause, A Migliorini, F Montmessin, C Pere, M Persson, A Piccialli, M Rengel, A Rodin, B Sandor, M Sornig, H Svedhem, S Tellmann, P Tanga, AC Vandaele, T Widemann, CF Wilson, I Mueller-Wodarg, L Zasova
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The DREAMS experiment flown on the ExoMars 2016 mission for the study of Martian environment during the dust storm season

2017 IEEE INTERNATIONAL WORKSHOP ON METROLOGY FOR AEROSPACE (METROAEROSPACE) (2017) 249-255

Authors:

C Bettanini, F Esposito, S Debei, C Molfese, G Colombatti, A Aboudan, JR Brucato, F Cortecchia, G Di Achille, GP Guizzo, E Friso, F Ferri, L Marty, V Mennella, R Molinaro, P Schipani, S Silvestro, R Mugnuolo, S Pirrotta, E Marchetti, A-M Harri, F Montmessin, C Wilson, I Arruego Rodriguez, S Abbaki, V Apestigue, G Bellucci, J-J Berthelier, SB Calcutt, F Forget, M Genzer, P Gilbert, H Haukka, JJ Jimenez, S Jimenez, J-L Josset, O Karatekin, G Landis, R Lorenz, J Martinez, D Moehlmann, D Moirin, E Palomba, M Patel, J-P Pommereau, CI Popa, S Rafkin, P Rannou, NO Renno, W Schmidt, F Simoes, A Spiga, F Valero, L Vazquez, F Vivat, O Witasse, IEEE, IDREAMS Team
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A precise optical transmission spectrum of the inflated exoplanet WASP-52b

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 470:1 (2017) 742-754

Authors:

T Louden, PJ Wheatley, PGJ Irwin, J Kirk, I Skillen
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Jupiter's auroral-related stratospheric heating and chemistry I: Analysis of Voyager-IRIS and Cassini-CIRS spectra

ICARUS 292 (2017) 182-207

Authors:

JA Sinclair, GS Orton, TK Greathouse, LN Fletcher, JI Moses, V Hue, PGJ Irwin
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ALMA detection and astrobiological potential of vinyl cyanide on Titan.

Science advances 3:7 (2017) e1700022-e1700022

Authors:

MY Palmer, MA Cordiner, CA Nixon, SB Charnley, NA Teanby, Z Kisiel, PGJ Irwin, MJ Mumma

Abstract:

Recent simulations have indicated that vinyl cyanide is the best candidate molecule for the formation of cell membranes/vesicle structures in Titan's hydrocarbon-rich lakes and seas. Although the existence of vinyl cyanide (C2H3CN) on Titan was previously inferred using Cassini mass spectrometry, a definitive detection has been lacking until now. We report the first spectroscopic detection of vinyl cyanide in Titan's atmosphere, obtained using archival data from the Atacama Large Millimeter/submillimeter Array (ALMA), collected from February to May 2014. We detect the three strongest rotational lines of C2H3CN in the frequency range of 230 to 232 GHz, each with >4σ confidence. Radiative transfer modeling suggests that most of the C2H3CN emission originates at altitudes of ≳200 km, in agreement with recent photochemical models. The vertical column densities implied by our best-fitting models lie in the range of 3.7 × 1013 to 1.4 × 1014 cm-2. The corresponding production rate of vinyl cyanide and its saturation mole fraction imply the availability of sufficient dissolved material to form ~107 cell membranes/cm3 in Titan's sea Ligeia Mare.
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