Dust and Gas Environment of Active Comets

The simulation of the dust and gas environment around cometary nuclei is a challenging computational problem.

We develop scalable algorithms to advance physical models of comets to take into account the detailed shape, rotation, and physical properties of comets.

The tool suit runs on the HLRN supercomputer and is used to predict the activity of comet 67P/Churyumov-Gerasimenko, which is observed by the ESA Rosetta mission.

Publikationen

2020 2019 2018 2017 2016 2015

2020
Margaux Hoang, Philippe Garnier, Jeremie Lasue, Henri Rème, Maria Teresa Capria, Kathrin Altwegg, Matthias Läuter, Tobias Kramer, Martin Rubin	Investigating the Rosetta/RTOF observations of comet 67P/Churyumov-Gerasimenko using a comet nucleus model: Influence of dust mantle and trapped CO	Astronomy & Astrophysics, Vol.638, p. A106, 2020	BibTeX DOI
Tobias Kramer	Transient capture of electrons in magnetic fields, or: comets in the restricted three-body problem	Symmetries in Sciences, Bregenz 2019, 2020 (in press)	BibTeX arXiv
2019
Tobias Kramer, Matthias Läuter, Stubbe Hviid, Laurent Jorda, Horst Uwe Keller, Ekkehard Kührt	Comet 67P/Churyumov-Gerasimenko rotation changes derived from sublimation induced torques	Astronomy & Astrophysics, Vol.630, p. A3, 2019	BibTeX arXiv DOI
Tobias Kramer, Matthias Läuter	Outgassing induced acceleration of comet 67P/Churyumov-Gerasimenko	Astronomy & Astrophysics, Vol.630, p. A4, 2019	BibTeX arXiv DOI
Matthias Läuter, Tobias Kramer, Martin Rubin, Kathrin Altwegg	Surface localization of gas sources on comet 67P/Churyumov-Gerasimenko based on DFMS/COPS data	Monthly Notices of the Royal Astronomical Society, Vol.483, pp. 852-861, 2019	BibTeX DOI arXiv
2018
Tobias Kramer, Matthias Noack, Daniel Baum, Hans-Christian Hege, Eric J. Heller	Dust and gas emission from cometary nuclei: the case of comet 67P/Churyumov-Gerasimenko	Advances in Physics: X, 3(1), p. 1404436, 2018 (preprint available as ZIB-Report 17-78)	PDF (ZIB-Report) BibTeX DOI
2016
Tobias Kramer, Matthias Noack	On the origin of inner coma structures observed by Rosetta during a diurnal rotation of comet 67P/Churyumov-Gerasimenko	The Astrophysical Journal Letters, 823(1), p. L11, 2016 (preprint available as ZIB-Report 16-26)	PDF (ZIB-Report) BibTeX DOI
2015
Tobias Kramer, Matthias Noack, Daniel Baum, Hans-Christian Hege, Eric J. Heller	Homogeneous dust emission and jet structure near active cometary nuclei: the case of 67P/Churyumov-Gerasimenko	2015	BibTeX arXiv
Tobias Kramer, Matthias Noack	Prevailing Dust-transport Directions on Comet 67P/Churyumov–Gerasimenko	The Astrophysical Journal Letters, 813(2), p. L33, 2015	BibTeX DOI