C. , C. , O. De, P. , and U. P. Sabatier, Toulouse and Imperial College London, supported by the UK Science and Technology Facilities Council) Data analysis was done with the QSAS science analysis system provided by the United Kingdom Cluster Science Centre (Imperial College London and Queen Mary

H. Balsiger, Rosina ??? Rosetta Orbiter Spectrometer for Ion and Neutral Analysis, Space Science Reviews, vol.67, issue.12, p.745, 2007.
DOI : 10.1016/S0927-796X(98)00014-X

URL : https://hal.archives-ouvertes.fr/hal-00161628

J. Bibring, The Rosetta Lander (???Philae???) Investigations, Space Science Reviews, vol.58, issue.1-4, p.205, 2007.
DOI : 10.1007/s11214-006-9138-2

J. Bibring, Philae's First Days on the Comet, Science, vol.349, issue.6247, p.493, 2015.
DOI : 10.1126/science.aac5116

URL : http://science.sciencemag.org/content/sci/349/6247/493.full.pdf

A. Bieler, Comparison of 3D kinetic and hydrodynamic models to ROSINA-COPS measurements of the neutral coma of 67P/Churyumov-Gerasimenko, Astronomy & Astrophysics, vol.583, issue.583, pp.7-10, 2015.
DOI : 10.1016/j.jcp.2011.02.006

URL : https://hal.archives-ouvertes.fr/insu-01200510

J. L. Burch, R. Goldstein, T. E. Cravens, W. C. Gibson, R. N. Lundin et al., RPC-IES: The Ion and Electron Sensor of the Rosetta Plasma Consortium, Space Science Reviews, vol.167, issue.9, p.697, 2007.
DOI : 10.1007/s11214-006-9002-4

K. I. Churyumov and S. I. Gerasimenko, The Motion, Evolution of Orbits, and Origin of Comets, Proc. IAU Symp, p.27, 1972.

G. Clark, Physics of Solar System Plasmas, A&A Cambridge Edberg N. J. T. et al. Geophys. Res. Lett, vol.583, issue.42, pp.24-4263, 1997.

A. I. Eriksson, RPC-LAP: The Rosetta Langmuir Probe Instrument, Space Science Reviews, vol.308, issue.1-4, p.729, 2007.
DOI : 10.1007/s11214-006-9003-3

S. Gasc, Sensitivity and fragmentation calibration of the time-of-flight mass spectrometer RTOF on board ESA's Rosetta mission, Planetary and Space Science, vol.135, p.64, 2017.
DOI : 10.1016/j.pss.2016.11.011

K. Glassmeier, Interaction of the solar wind with comets: a Rosetta perspective, Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, vol.600, issue.2097, p.20160256, 2017.
DOI : 10.1126/science.aad9045

K. Glassmeier, RPC-MAG The Fluxgate Magnetometer in the ROSETTA Plasma Consortium, Space Science Reviews, vol.13, issue.10, p.649, 2007.
DOI : 10.1007/978-1-4020-2573-0_16

R. Goldstein, The Rosetta Ion and Electron Sensor (IES) measurement of the development of pickup ions from comet 67P/Churyumov-Gerasimenko, Geophysical Research Letters, vol.187, issue.6220, p.3093, 2015.
DOI : 10.1016/j.icarus.2014.07.021

S. Lee, Spatial and diurnal variation of water outgassing on comet 67P/Churyumov-Gerasimenko observed from Rosetta/MIRO in August 2014, Astronomy & Astrophysics, vol.473, p.5, 2015.
DOI : 10.1051/0004-6361:20066715

URL : https://hal.archives-ouvertes.fr/hal-01439955

H. Madanian, Suprathermal electrons near the nucleus of comet 67P/Churyumov-Gerasimenko at 3???AU: Model comparisons with Rosetta data, Journal of Geophysical Research: Space Physics, vol.48, issue.1, p.5815, 2016.
DOI : 10.1016/j.asr.2011.05.024

URL : https://hal.archives-ouvertes.fr/insu-01352458

U. Mall, HIGH-TIME RESOLUTION IN SITU INVESTIGATION OF MAJOR COMETARY VOLATILES AROUND 67P/C???G AT 3.1???2.3 au MEASURED WITH ROSINA-RTOF, The Astrophysical Journal, vol.819, issue.2, p.126, 2016.
DOI : 10.3847/0004-637X/819/2/126

URL : https://hal.archives-ouvertes.fr/insu-01287167

H. M. Mott-smith and I. Langmuir, The Theory of Collectors in Gaseous Discharges, Physical Review, vol.27, issue.4, p.727, 1926.
DOI : 10.1007/BF01328474

H. Nilsson, RPC-ICA: The Ion Composition Analyzer of the Rosetta Plasma Consortium, Space Science Reviews, vol.24, issue.6, p.671, 2007.
DOI : 10.1186/BF03352104

H. Tawara, Cross sections for charge transfer of hydrogen beams in gases and vapors in the energy range 10 eV???10 keV, Atomic Data and Nuclear Data Tables, vol.22, issue.6, p.491, 1978.
DOI : 10.1016/0092-640X(78)90021-9

J. G. Trotignon, RPC-MIP: the Mutual Impedance Probe of the Rosetta Plasma Consortium, Space Science Reviews, vol.128, issue.1-4, p.713, 2007.
DOI : 10.1007/s11214-006-9005-1

E. Vigren and M. Galand, PREDICTIONS OF ION PRODUCTION RATES AND ION NUMBER DENSITIES WITHIN THE DIAMAGNETIC CAVITY OF COMET 67P/CHURYUMOV-GERASIMENKO AT PERIHELION, The Astrophysical Journal, vol.772, issue.1, p.33, 2013.
DOI : 10.1088/0004-637X/772/1/33

E. Vigren, M. Galand, A. I. Eriksson, N. J. Edberg, E. Odelstad et al., ON THE ELECTRON-TO-NEUTRAL NUMBER DENSITY RATIO IN THE COMA OF COMET 67P/CHURYUMOV???GERASIMENKO: GUIDING EXPRESSION AND SOURCES FOR DEVIATIONS, The Astrophysical Journal, vol.812, issue.1, p.54, 2015.
DOI : 10.1088/0004-637X/812/1/54

F. L. Whipple and W. F. Huebner, Physical Processes in Comets, Annual Review of Astronomy and Astrophysics, vol.14, issue.1, p.143, 1976.
DOI : 10.1146/annurev.aa.14.090176.001043

T. N. Woods, Solar EUV Experiment (SEE): Mission overview and first results, Journal of Geophysical Research, vol.511, issue.1, p.1312, 2005.
DOI : 10.1029/141GM11

URL : http://onlinelibrary.wiley.com/doi/10.1029/2004JA010765/pdf

P. Wurz, Solar wind sputtering of dust on the surface of 67P/Churyumov-Gerasimenko, Astronomy & Astrophysics, vol.219, p.22, 2015.
DOI : 10.1016/j.nimb.2004.01.208

URL : https://hal.archives-ouvertes.fr/insu-01206313