In-House Project
The Ribbeck meteorite fall
As a fresh fall of a very rare meteorite class, Ribbeck became a target of intensive scientific studies
Dr.Christopher Hamann (he/him)
Scientist
Project(s)
- In-House Project
Formation of carbonaceous cosmic dust revealed by samples returned from asteroid Ryugu
A link between carbonaceous cosmic dust and carbonaceous asteroids
Vita
My academic career began with a degree in geosciences, specializing in mineralogy and petrology, at the Freie Universität Berlin. This was followed by a doctorate in impact research and planetology, which I successfully defended in February 2018 with a summa cum laude rating as part of the DFG-funded research group FOR-887 MEMIN “Multidisciplinary Experimental and Modeling Impact Research Network.” After a postdoctoral fellowship at the Federal Institute for Materials Research and Testing, I have been managing various laboratories for materials analysis at the Museum für Naturkunde Berlin for more than five years.
Further information
My doctoral research has been recognized with awards such as the Lunar and Planetary Institute (LPI) Career Development Award 2015. I am a member of the German Mineralogical Society, the German Society for Planetary Research, and the Meteoritical Society, and I regularly prepare expert reports for third-party funding agencies (e.g., Natural Sciences and Engineering Research Council of Canada) as well as scientific journals (including Nature Astronomy, Earth and Planetary Science Letters, Geochimica et Cosmochimica Acta, Meteortical & Planetary Sciences). In addition to my work as a laboratory manager, I offer MSc courses on chemical analysis of planetary materials and impact processes as a lecturer at Freie Universität Berlin.
Publications
Sergienko, E.S., Janson, S.J., Esau, A., Hamann, C., Kaufmann, F., Hecht, L., Karpinsky, V.V., Petrova, E.V., Kharitonskii, P.V. (2023). Mineral Inclusions in Irghizites and Microirghizites (Zhamanshin Astroblem, Kazakhstan). In Marin, Y. (Hrsg.), XIII General Meeting of the Russian Mineralogical Society and the Fedorov Session (165-177). Springer International Publishing. Cham. DOI: https://doi.org/10.1007/978-3-031-23390-6_22
Hamann, C., Greshake, A., Hecht, L., Jenniskens, P., Kaufmann, F., Luther, R., Van Den Neucker, A., Helbert, J., Spurný, P., Borovička, J., Gattacceca, J., Anand, A., Kleine, T., Braukmüller, N., Becker, H., Schmitt-Kopplin, P., Krietsch, D., Schuppisser, A., Busemann, H., Goderis, S. (2024). Petrography and geochemistry of the Ribbeck aubrite recovered from asteroid 2024 BX1, the closest analog to Mercury?. EPSC Abstracts. DOI: https://doi.org/10.5194/epsc2024-979
Van Den Neucker, A., Helbert, J., Barraud, O., d'Amore, M., Verma, N., Adeli, S., Alemanno, G., Maturilli, A., Hamann, C., Hecht, L., Greshake, A., Kaufman, F., Luther, R., Jenniskens, P., Hiesinger, H. (2024). The Spectral Characterization of the Ribbeck Aubrite as Mercury Analog: The Effect of Heating in Preparation for MERTIS FlyBy 5.. EPSC Abstracts. DOI: https://doi.org/10.5194/epsc2024-733
Hamann, C., Kurosawa, K., Ono, H., Tada, T., Langenhorst, F., Pollok, K., Genda, H., Niihara, T., Okamoto, T., Matsui, T. (2023). Experimental Evidence for Shear‐Induced Melting and Generation of Stishovite in Granite at Low (<18 GPa) Shock Pressure. Journal of Geophysical Research: Planets, 128(6), e2023JE007742. DOI: https://doi.org/10.1029/2023JE007742
Hamann, C., Rice, P., Greshake, A. (2024). Hypervelocity collisions as drivers of planetary differentiation: Evidence from the Boutel Fil (b) H chondrite impact melt breccia. EPSC Abstracts. DOI: https://doi.org/10.5194/epsc2024-826
Moreau, J., Jõeleht, A., Stojic, A.N., Hamann, C., Kaufmann, F.E.D., Somelar, P., Plado, J., Hietala, S., Kohout, T. (2024). Experimentally induced troilite melt pervasion in chondritic analog materials: A study for FeNi-FeS darkening in chondrites. Meteoritics & Planetary Science, 59(12), 3229-3249. DOI: https://doi.org/10.1111/maps.14274
Tada, T., Kurosawa, K., Tomioka, N., Nagaya, T., Isa, J., Hamann, C., Ono, H., Niihara, T., Okamoto, T., Matsui, T. (2024). Detailed Occurrence of Feather Features in Quartz in Experimentally Shocked Granite. Journal of Geophysical Research: Planets, 129(11), e2024JE008409. DOI: https://doi.org/10.1029/2024JE008409
Luther, R., Hamann, C., Greshake, A., Hecht, L., Jennisken, P., Kaufmann, F., Van den Neucker, A., Helbert, J., Spurny, P., Borovicka, J., Gattacceca, J., Anand, A., Kleine, T., Braukmüller, N., Becker, H., Schmitt-Kopplin, P., Krietsch, D., Schuppisser, A., Busemann, H., Goderis, S. (2024). Initial Analysis of the Ribbeck Aubrite Recovered from Asteroid 2024 BX1. Lunar and Planetary Institute Contributions, 3036. URL: https://www.hou.usra.edu/meetings/metsoc2024/pdf/6418.pdf
Hamann, C., Piehl, P., Weingart, E., Stolle, D., Al-Sabbagh, D., Ostermann, M., Auer, G., Adam, C. (2024). Selective removal of zinc and lead from electric arc furnace dust by chlorination–evaporation reactions. Journal of Hazardous Materials, 465, 133421. DOI: https://doi.org/10.1016/j.jhazmat.2023.133421
Michalik, T., Hamann, C., Maturilli, A., Cloutis, E.A., Höfer, H., Otto, K.A. (2025). The Fate of Pyroxene After Volatile Contact — New Investigations. URL: https://www.hou.usra.edu/meetings/lpsc2025/pdf/1890.pdf