Temporal evolution of comet 67P/Churyumov-Gerasimenko's surface as observed by VIRTIS-M
Mauro Ciarniello
(1)
,
Gianrico Filacchione
(1)
,
Fabrizio Capaccioni
(1)
,
Andrea Raponi
(1)
,
Maria Cristina de Sanctis
(1)
,
Federico Tosi
(1)
,
Maria Teresa Capria
(1)
,
Michelangelo Formisano
(1)
,
Stéphane Erard
(2, 3)
,
Dominique Bockelée-Morvan
(2, 3)
,
Cédric Leyrat
(2, 3)
,
Gabriele Arnold
(4)
,
Maria Antonella Barucci
(2, 3)
,
Éric Quirico
(5)
,
Sonia Fornasier
(2, 3)
,
David Kappel
(4)
,
Andrea Longobardo
(1)
,
Batiste Rousseau
(2, 3)
,
Stefano Mottola
(4)
Résumé
We report about the seasonal evolution of 67P/Churyumov-Gerasimenko's surface as inferred from VIRTIS-Rosetta measurements. We analyze observations performed from August 2014, when the comet was at a heliocentric distance of 3.5 AU along the inbound part of the orbit, up to the end of the Rosetta mission in September 2016, when 67P was at 3.8 AU outbound.