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Ortiz, J. Pollock, J. Skottfelt, K. M. Ivarsen, L. Mancini, L. Nagy, L. Vanzi, M. Assafin, M. Dominik, M. Emilio, M. Gillon, N. Morales, R. Gil-Hutton, R. Leiva, R. Vieira-Martins, T. Widemann, U. J{\\o}rgensen, V. D. Ivanov","submitted_at":"2015-06-26T18:00:57Z","abstract_excerpt":"We analyze two multi-chord stellar occultations by Pluto observed on July 18th, 2012 and May 4th, 2013, and monitored respectively from five and six sites. They provide a total of fifteen light-curves, twelve of them being used for a simultaneous fit that uses a unique temperature profile, assuming a clear (no-haze) and pure N_2 atmosphere, but allowing for a possible pressure variation between the two dates. 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Decock, A. Dias-Oliveira, A. Doressoundiram, A. Maury, A. P. LaCluyze, A. R. Gomes-J\\'unior, A. Thirouin, B. Sicardy, C. Dumas, C. Lopez-Sisterna, C. Opitom, C. Snodgrass, D. E. Reichart, E. Jehin, E. Lellouch, E. Meza, F. Braga-Ribas, F. Colas, F. Roques, G. Benedetti-Rossi, G. Hau, J. B. Haislip, J. Fabrega Polleri, J. F. Soulier, J. Girard, J. I. B. Camargo, J. Lecacheux, J. L. Ortiz, J. Pollock, J. Skottfelt, K. M. Ivarsen, L. Mancini, L. Nagy, L. Vanzi, M. Assafin, M. Dominik, M. Emilio, M. Gillon, N. Morales, R. Gil-Hutton, R. Leiva, R. Vieira-Martins, T. Widemann, U. J{\\o}rgensen, V. D. Ivanov","submitted_at":"2015-06-26T18:00:57Z","abstract_excerpt":"We analyze two multi-chord stellar occultations by Pluto observed on July 18th, 2012 and May 4th, 2013, and monitored respectively from five and six sites. 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