137 citations · 281 across the 10 of their papers we have counts for
10 papers
New gravity field of comet 67P/C-G based on Rosetta's Doppler and optical data
Julien Laurent-Varin, Théo James, Jean-Charles Marty +3
We provide a new gravity field of Comet 67P-C/G up to degree 4. We detect mass heterogeneity in the comet nucleus. The loss of mass is restimated at 0.28\% of the comet's total mas…
Ancient and present surface evolution processes in the Ash regionof comet 67P/Churyumov-Gerasimenko
A. Bouquety, L. Jorda, O. Groussin +3
The Rosetta mission provided us with detailed data of the surface of the nucleus of comet 67P/Churyumov-Gerasimenko.In order to better understand the physical processes associated…
Seasonal Mass Transfer on the Nucleus of Comet 67P/Chuyumov-Gerasimenko
H. U. Keller, S. Mottola, S. F. Hviid +47
We collect observational evidence that supports the scheme of mass transfer on the nucleus of comet 67P/Churyumov-Gerasimenko. The obliquity of the rotation axis of 67P causes stro…
Pits formation from volatile outgassing on 67P/Churyumov-Gerasimenko
O. Mousis, A. Guilbert-Lepoutre, B. Brugger +8
We investigate the thermal evolution of comet 67P/Churyumov-Gerasimenko's subsurface in the Seth_01 region, where active pits have been observed by the ESA/Rosetta mission. Our sim…
Temporal morphological changes in the Imhotep region of comet 67P/Churyumov-Gerasimenko
O. Groussin, H. Sierks, C. Barbieri +45
We report on the first major temporal morphological changes observed on the surface of the nucleus of comet 67P/Churyumov-Gerasimenko, in the smooth terrains of the Imhotep region.…
Herschel and IRAM-30m Observations of Comet C/2012 S1 (ISON) at 4.5 AU from the Sun
L. O'Rourke, D. Bockelée-Morvan, N. Biver +9
Our goal was to characterize the distant gaseous and dust activity of comet C\2012 S1 (ISON), inbound, from observations of H2O, CO and the dust coma in the far-infrared and submil…
Gas and dust productions of comet 103P/Hartley 2 from millimetre observations: interpreting rotation-induced time variations
J. Boissier, D. Bockelée-Morvan, N. Biver +7
Comet 103P/Hartley 2 made a close approach to the Earth in October 2010. It was the target of an extensive observing campaign and was visited by the Deep Impact spacecraft (mission…
Millimetre continuum observations of comet C/2009 P1 (Garradd)
J. Boissier, D. Bockelée-Morvan, O. Groussin +7
Little is known about the physical properties of the nuclei of Oort cloud comets. Measuring the thermal emission of a nucleus is one of the few means for deriving its size and cons…
The properties of asteroid (2867) Steins from Spitzer observations and OSIRIS shape reconstruction
O. Groussin, P. Lamy, S. Fornasier +1
We report on the thermal properties and composition of asteroid (2867) Steins derived from an analysis of new Spitzer Space Telescope (SST) observations performed in March 2008, in…
Earth-based detection of the millimetric thermal emission of the nucleus of comet 8P/Tuttle
J. Boissier, O. Groussin, L. Jorda +7
Little is known about the physical properties of cometary nuclei. Apart from space mission targets, measuring the thermal emission of a nucleus is one of the few means to derive it…