The gas production of 14 species from comet 67P/Churyumov-Gerasimenko based on DFMS/COPS data from 2014-2016. (arXiv:2006.01750v3 [astro-ph.EP] UPDATED)
<a href="http://arxiv.org/find/astro-ph/1/au:+Laeuter_M/0/1/0/all/0/1">Matthias Laeuter</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Kramer_T/0/1/0/all/0/1">Tobias Kramer</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Rubin_M/0/1/0/all/0/1">Martin Rubin</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Altwegg_K/0/1/0/all/0/1">Kathrin Altwegg</a>

The coma of comet 67P/Churyumov-Gerasimenko has been probed by the Rosetta
spacecraft and shows a variety of different molecules. The ROSINA COmet
Pressure Sensor and the Double Focusing Mass Spectrometer provide in-situ
densities for many volatile compounds including the 14 gas species H2O, CO2,
CO, H2S, O2, C2H6, CH3OH, H2CO, CH4, NH3, HCN, C2H5OH, OCS, and CS2. We fit the
observed densities during the entire comet mission between August 2014 and
September 2016 to an inverse coma model. We retrieve surface emissions on a
cometary shape with 3996 triangular elements for 50 separated time intervals.
For each gas we derive systematic error bounds and report the temporal
evolution of the production, peak production, and the time-integrated total
production. We discuss the production for the two lobes of the nucleus and for
the northern and southern hemispheres. Moreover we provide a comparison of the
gas production with the seasonal illumination.

The coma of comet 67P/Churyumov-Gerasimenko has been probed by the Rosetta
spacecraft and shows a variety of different molecules. The ROSINA COmet
Pressure Sensor and the Double Focusing Mass Spectrometer provide in-situ
densities for many volatile compounds including the 14 gas species H2O, CO2,
CO, H2S, O2, C2H6, CH3OH, H2CO, CH4, NH3, HCN, C2H5OH, OCS, and CS2. We fit the
observed densities during the entire comet mission between August 2014 and
September 2016 to an inverse coma model. We retrieve surface emissions on a
cometary shape with 3996 triangular elements for 50 separated time intervals.
For each gas we derive systematic error bounds and report the temporal
evolution of the production, peak production, and the time-integrated total
production. We discuss the production for the two lobes of the nucleus and for
the northern and southern hemispheres. Moreover we provide a comparison of the
gas production with the seasonal illumination.

http://arxiv.org/icons/sfx.gif