The Dust-to-Gas Ratio, Size Distribution, and Dust Fall-Back Fraction of Comet 67P/Churyumov-Gerasimenko: Inferences From Linking the Optical and Dynamical Properties of the Inner Comae

Autor: Raphael Marschall, Johannes Markkanen, Selina-Barbara Gerig, Olga Pinzón-Rodríguez, Nicolas Thomas, Jong-Shinn Wu

Publikováno v: Frontiers in Physics, Vol 8 (2020)

In this work, we present results that simultaneously constrain the dust size distribution, dust-to-gas ratio, fraction of dust re-deposition, and total mass production rates for comet 67P/Churyumov-Gerasimenko. We use a 3D Direct Simulation Monte Car

Externí odkaz: https://doaj.org/article/54bba9ea9371469e9cd7013b16612cd4

A numerical model of dust particle impacts during a cometary encounter with application to ESA's Comet Interceptor mission

Autor: Nico Haslebacher, Selina-Barbara Gerig, Nicolas Thomas, Raphael Marschall, Vladimir Zakharov, Cecilia Tubiana

Publikováno v: Acta Astronautica

The attitude perturbations caused by large dust particle impacts on a three-axis stabilized spacecraft during a high velocity encounter with a comet are studied. Specifically, a numerical model is used to make order of magnitude estimations in relati

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9dfc871ec953ba664f636b0aa2bd528e
https://hdl.handle.net/21.11116/0000-000C-9368-9

Simulating nightside activity at comet 67P/Churyumov-Gerasimenko inferred from Rosetta/OSIRIS image analysis

Autor: O. Pinzón-Rodríguez, Selina-Barbara Gerig, Nicolas Thomas, Raphael Marschall

OSIRIS (Optical, Spectroscopic, and Infrared Remote Imaging System, [1]) was the scientific camera system on board the Rosetta spacecraft and acquired a huge image dataset of the nucleus and the inner dust coma of comet 67P/Churyumov-Gerasimenko (her

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cc78c4890dfd191708bda9d02ae4851f
https://doi.org/10.5194/epsc2020-587

The dust-to-gas ratio, size distribution, and dust fall-back fraction of comet 67P/Churyumov-Gerasimenko

Autor: O. Pinzón-Rodríguez, Raphael Marschall, Selina-Barbara Gerig, Jong-Shinn Wu, Johannes Markkanen, Nicolas Thomas

The European Space Agency's (ESA) Rosetta mission escorted comet 67P/Churyumov-Gerasimenko (hereafter 67P) from August 2014 to September 2016 along its orbit through the inner Solar System. It watched as the comet's activity started to develop at lar

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8aa0f98cad58123305025fe338c8ea52
https://doi.org/10.5194/epsc2020-375

A comparison of multiple Rosetta data sets and 3D model calculations of 67P/Churyumov-Gerasimenko coma around equinox (May 2015)

Autor: F. Preusker, Ladislav Rezac, Laurent Jorda, Martin Rubin, P. Theologou, Jong-Shinn Wu, O. Pinzón-Rodríguez, Kathrin Altwegg, Clémence Herny, David Marshall, S. K. Dadzie, Nicolas Thomas, Selina-Barbara Gerig, Stefano Mottola, David Kappel, C. C. Su, Ekkehard Kührt, Chariton Christou, Gabriele Arnold, Y. Liao, Raphael Marschall, Paul Hartogh, Rafael Rodrigo, Frank Scholten, Olivier Groussin, O. Mousis

Publikováno v: Marschall, Raphael; Rezac, L.; Kappel, D.; Su, C.C.; Gerig, Selina-Barbara; Rubin, Martin; Pinzón Rodríguez, Olga Janeth; Marshall, D.; Liao, Y.; Herny, Clémence Emilie Lucile; Arnold, G.; Christou, C.; Dadzie, S.K.; Groussin, O.; Hartogh, P.; Jorda, L.; Kührt, E.; Mottola, S.; Mousis, O.; Preusker, F.; ... (2019). A comparison of multiple Rosetta data sets and 3D model calculations of 67P/Churyumov-Gerasimenko coma around equinox (May 2015). Icarus, 328, pp. 104-126. Elsevier 10.1016/j.icarus.2019.02.008
Icarus
Icarus, 2019, 328, pp.104-126. ⟨10.1016/j.icarus.2019.02.008⟩

International audience; We have used the latest available shape model for gas and dust simulations of the inner coma of comet 67P/Churyumov-Gerasimenko for the period around May 2015 (equinox). We compare results from a purely insolation-driven model

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4e63fe6a852e3114a46ebf8945bef71f
https://boris.unibe.ch/130647/1/1-s2.0-S0019103518305700-main.pdf