TY - JOUR A1 - Kramer, Tobias A1 - Noack, Matthias A1 - Baum, Daniel A1 - Hege, Hans-Christian A1 - Heller, Eric J. T1 - Dust and gas emission from cometary nuclei: the case of comet 67P/Churyumov-Gerasimenko JF - Advances in Physics: X N2 - Comets display with decreasing solar distance an increased emission of gas and dust particles, leading to the formation of the coma and tail. Spacecraft missions provide insight in the temporal and spatial variations of the dust and gas sources located on the cometary nucleus. For the case of comet 67P/Churyumov-Gerasimenko (67P/C-G), the long-term obser- vations from the Rosetta mission point to a homogeneous dust emission across the entire illuminated surface. Despite the homogeneous initial dis- tribution, a collimation in jet-like structures becomes visible. We propose that this observation is linked directly to the complex shape of the nucleus and projects concave topographical features into the dust coma. To test this hypothesis, we put forward a gas-dust description of 67P/C-G, where gravitational and gas forces are accurately determined from the surface mesh and the rotation of the nucleus is fully incorporated. The emerging jet-like structures persist for a wide range of gas-dust interactions and show a dust velocity dependent bending. Y1 - 2018 U6 - https://doi.org/10.1080/23746149.2017.1404436 VL - 3 IS - 1 SP - 1404436 ER - TY - JOUR A1 - Allen, Gabrielle A1 - Davis, K. A1 - Goodale, Tom A1 - Hutanu, Andrei A1 - Kaiser, Hartmut A1 - Kielmann, Thilo A1 - Merzky, Andre A1 - Nieuwpoort, R. A1 - Reinefeld, Alexander A1 - Schintke, Florian A1 - Schütt, Thorsten A1 - Seidel, Edward A1 - Ullmer, Brygg T1 - The Grid Application Toolkit: Toward Generic and Easy Appliction Programming Interfaces for the Grid JF - Procceedings of the IEEE Y1 - 2005 U6 - https://doi.org/10.1109/JPROC.2004.842755 VL - 93 IS - 3 SP - 534 EP - 550 PB - IEEE Computer Society Press ER - TY - CHAP A1 - Schütt, Thorsten A1 - Merzky, André A1 - Hutanu, Andrei A1 - Schintke, Florian T1 - Remote partial file access using compact pattern descriptions T2 - 4th IEEE/ACM International Symposium on Cluster Computing and the Grid (CCGrid 2004), April 19-22, 2004, Chicago, Illinois, USA Y1 - 2004 U6 - https://doi.org/10.1109/CCGrid.2004.1336604 SP - 482 EP - 489 PB - IEEE Computer Society ER -