Insolation, erosion, and morphology of comet 67P/Churyumov-Gerasimenko

By H. Keller, Stefano Mottola, B. Davidsson, S. Schröder, Y. Skorov, E. Kührt, O. Groussin, M. Pajola, S. Hviid, F. Preusker and 37 more. 2015

183 citations recorded by the source corpus.

Subfields: Astronomy and Astrophysics, Atmospheric Science

View Paper: https://www.semanticscholar.org/paper/4832ee47b60cd52c84e4b80c12dbfc7bea13a7d9

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Citations in the corpus

The primordial nucleus of comet 67P/Churyumov-Gerasimenko (2015, methodology): “First, the thermophysical model of Davidsson & Rickman (2014) used by Sierks et al. (2015), and that by Keller et al. (2015), consistently show that the energy input in the Hapi valley and Hathor cliff is lower than elsewhere when integrated throughout the orbit while nucleus rotation, shadowing,…”
Redistribution of particles across the nucleus of comet 67P/Churyumov-Gerasimenko (2015, background): “However, we note that the southern hemisphere will become more active near perihelion as a result of the increased insolation and the obliquity (Keller et al. 2015), so that deposition from this source is conceivable.”
Sulphur-bearing species in the coma of comet 67P/Churyumov–Gerasimenko (2016, background): “Since 67P loses more than 1 m of its surface on the Southern hemisphere per orbit (Keller et al. 2015) to which depth cosmic rays can hardly penetrate, we would have to observe a decrease of S2 with time, which we do not.”
Evidence for the formation of comet 67P/Churyumov-Gerasimenko through gravitational collapse of a bound clump of pebbles (2017, background): “For the northern hemisphere, we assume that 20% of its surface is primitive (Keller et al. 2015), with a water-ice content of Y , and 80% of the sur- face is covered in deposit from the south, with a remaining water-ice abundance of Z.”
Inventory of the volatiles on comet 67P/Churyumov-Gerasimenko from Rosetta/ROSINA (2015, background): “…which is the winter hemisphere during the time of the reported observations, has become sunlit in May 2015 and then experienced a short, but intense summer, during which time it eroded by a few meters (Keller et al. 2015) and probably again exposed layers containing many highly volatile species.”
Shape model, reference system definition, and cartographic mapping standards for comet 67P/Churyumov-Gerasimenko Stereo-photogrammetric analysis of Rosetta/OSIRIS image data (2015, methodology): “…of SPG shape models have previously been used within many scientific analyses of Rosetta data (El-Maarry et al. 2015; Fornasier et al. 2015; Keller et al. 2015a; Kofman et al. 2015; Massironi et al. 2015; Pajola et al. 2015; Pommerol et al. 2015; La Forgia et al. 2015; Sierks et al. 2015;…”