Projects
- APOSSUM: Labor- und Fallturmexperimente zum Testen eines rotierenden Sampling Mechanismus ()
Individual Granted Project: Bundesministerium für Wirtschaft und Energie | Project Number: 50OO2511 - Thermal and Mechanical Properties of Carbonaceous Chondrites ()
Individual Granted Project: DFG - Sachbeihilfe/Einzelförderung | Project Number: GU 1620/6-1 - Electronically Augmented Astronomy (EAA): Können kostengünstige High-Tech-Beobachtungssysteme mit smarter Aufnahmetechnologie der städtischen Bevölkerung ein neues Fenster ins Universum öffnen? ()
Individual Granted Project: Universitätsstiftung Münster - Citizen Science Wettbewerb
Research Articles (Journals)
- Patzek, M., Ritter, B., Güttler, C., Goldmann, M., Karatekin, Ö., Koschny, D., Moissl, R., Fogliano, V., Cabral, F., Walker, R., and Gundlach, B. . “Payload Selection Scheme for a Fast-Response Planetary Defense Scouting Mission: The Satis CubeSat Study.” Preprint. Advances in Astronomy 2026 (1): 1–14. doi: 10.1155/aa/2095618.
- Aussel, Ben, Rüsch, Ottaviano, Gundlach, Bastian, Bickel, Valentin Tertius, Kruk, Sandor, and Sefton-Nash, Elliot. . “Global Lunar Boulder Map From LRO NAC Optical Images Using Deep Learning: Implications for Regolith and Protolith.” Journal of Geophysical Research: Planets 130 e2025JE008981. doi: 10.1029/2025JE008981.
- Kreuzig, C., Bischoff, D., Meier, G., Kargl, G., Brecher, J.N., Goldmann, M., Knoop, C., Ottersberg, R., Pommerol, A., Kovalev, A., Gorb, S.N., Gundlach, B., and Blum, J. . “The strength of outgassed porous dust aggregates.” Astronomy and Astrophysics 688: 1–14. doi: 10.1051/0004-6361/202449797.
- Bürger, J., Hayne, P.O., Gundlach, B., Läuter, M., Kramer, T., and Blum, J. . “A Microphysical Thermal Model for the Lunar Regolith: Investigating the Latitudinal Dependence of Regolith Properties.” Journal of Geophysical Research: Planets 129 (3) e2023JE008152. doi: 10.1029/2023JE008152.
- Zivithal, Stephan, Kargl, Günter, Macher, Wolfgang, Laddha, Sunny, Blum, Jürgen, Gundlach, Bastian, Güttler, Carsten, and Sierks, Holger. . “Grain polydispersity and non-sphericity effects on gas flow through granular beds using measurements and modelling.” Monthly Notices of the Royal Astronomical Society 531 (3). doi: 10.1093/mnras/stae1324.
- Feller, C., Pommerol, A., Lethuillier, A., Hänni, N., Schürch, S., Bühr, C., Gundlach, B., Haenni, B., Jäggi, N., and Kaminek, M. . “Spectrophotometric properties of CoPhyLab’s dust mixtures.” Monthly Notices of the Royal Astronomical Society 528 (1): 61–81. doi: 10.1093/mnras/stad3890.
- Kreuzig, C., Bischoff, D., Molinski, N.S., Brecher, J.N., Kovalev, A., Meier, G., Oesert, J., Gorb, S.N., Gundlach, B., and Blum, J. . “Micrometre-sized ice particles for planetary science experiments – CoPhyLab cryogenic granular sample production and storage.” Royal Astronomical Society techniques and instruments 2 (1): 1–19. doi: 10.1093/rasti/rzad049.
- Güttler, C., Rose, M., Sierks, H., Macher, W., Zivithal, S., Blum, J., Laddha, S., Gundlach, B., and Kargl, G. . “Simulation and experiment of gas diffusion in a granular bed.” Monthly Notices of the Royal Astronomical Society 524 (4): 6114–6123. doi: 10.1093/mnras/stad2229.
- Bischoff, D., Schuckart, C., Attree, N., Gundlach, B., and Blum, J. . “A quantitative description of comet 67P’s dust and gas production remains enigmatic.” Monthly Notices of the Royal Astronomical Society 523 (4): 5171–5186. doi: 10.1093/mnras/stad1766.
- Laddha, S., Macher, M., Kargl, G., Zivithal, G., Blum, J., Gundlach, G., Güttler, C., Sierks, H., and Rose, M. . “Validation of gas flow experiments for porous media by means of computer simulations.” Measurement Science and Technology 34 (4) 34 045012. doi: 10.1088/1361-6501/acb373.
- Bürger, J., Glißmann, T., Lethuillier, A., Bischoff, D., Gundlach, B., Mutschke, H., Höfer, S., Wolf, S., and Blum, J. . “Sub-mm/mm optical properties of real protoplanetary matter derived from Rosetta/MIRO observations of comet 67P.” Monthly Notices of the Royal Astronomical Society 519 (1): 641–665. doi: 10.1093/mnras/stac3420.
- Blum, J., Bischoff, D., and Gundlach, B. . “Formation of Comets.” universe 8 (7) 381. doi: 10.3390/universe8070381.
- Lethuillier, A., Feller, C., Kaufmann, E., Becerra, P., Hänni, N., Diethelm, R., Kreuzig, C., Gundlach, B., Blum, J., Pommerol, A., Kargl, G., Laddha, S., Denisova, K., Kührt, E., Capelo, H.L., Haack, D., Zhang, X., Knollenberg, J., Molinski, N.S., Gilke, T., Sierks, H., Tiefenbacher, P., Güttler, C., Otto, K.A., Bischoff, D., Schweighart, M., Hagermann, A., and Jäggi, N. . “Cometary dust analogues for physics experiments.” Monthly Notices of the Royal Astronomical Society 515 (3): 3420–3438. doi: 10.1093/mnras/stac1734.
- Malamud, U., Landeck, W., Bischoff, D., Kreuzig, C., Perets, H.B., Gundlach, B., and Blum, J. . “Are there any pristine comets? Constraints from pebble structure.” Monthly Notices of the Royal Astronomical Society 514 (3): 3366–3394. doi: 10.1093/mnras/stac1535.
- Kreuzig, C., Kargl, G., Pommerol, A., Knollenberg, J., Lethuillier, A., Molinski, N.S., Gilke, T., Bischoff, D., Feller, C., Kührt, E., Sierks, H., Hänni, N., Capelo, H., Güttler, C., Haack, D., Otto, K., Kaufmann, E., Schweighart, M., Macher, W., Tiefenbacher, P., Gundlach, B., and Blum, J. . “The CoPhyLab comet-simulation chamber.” Review of Scientific Instruments 92 (11) 115102. doi: 10.1063/5.0057030.
- Haack, D., Kreuzig, C., Gundlach, B., Blum, J., and Otto, K. . “Sublimation of organic-rich comet analog materials and their relevance in fracture formation.” Astronomy and Astrophysics 653 A153. doi: 10.1051/0004-6361/202142069.
- Haack, D., Lethuillier, A., Kreuzig, C., Feller, C., Gundlach, B., Pommerol, A., Blum, J., and Otto, K.A. . “Sublimation of ice-dust mixtures in cooled vacuum environments to reproduce cometary morphologies.” Astronomy and Astrophysics 649 (35). doi: 10.1051/0004-6361/202140435.
- Schweighart, M., Macher, W., Kargl, G., Gundlach, B., and Capelo, H.L. . “Viscous and Knudsen gas flow through dry porous cometary analogue material.” Monthly Notices of the Royal Astronomical Society 504 (4): 5513–5527. doi: 10.1093/mnras/stab934.
- Bischoff, D, Gundlach, B, and Blum, J. . “A method to distinguish between micro-and macro-granular surfaces of small Solar system bodies.” Monthly Notices of the Royal Astronomical Society 508 (4): 4705–4721. doi: 10.1093/mnras/stab2803.
- Kost, P.-M., Linke, S., Gundlach, B., Lethuillier, A., Baasch, J., Stoll, E., and Blum, J. . “Thermal properties of lunar regolith simulant melting specimen.” Acta Astronautica 187: 429–437. doi: 10.1016/j.actaastro.2021.06.037.
- O’Rourke, L., Heinisch, P., Blum, J., Fornasier, S., Filacchione, G., Van Hoang, H, Ciarniello, M., Raponi, A., Gundlach, B., Blasco, R., Grieger, B., Glassmeier, K.-H., Küppers, M., Rotundi, A., Groussin, O., Bockelée-Morvan, D., Auster, H.-U., Oklay, N., Paar, G., Perucha, M., Kovacs, G., Jorda, L., Vincent, J.-B., Capaccioni, F., Biver, N., Parker, J., Tubiana, C., and Sierks, H. . “The Philae lander reveals low-strength primitive ice inside cometary boulders.” Nature 586: 697–701. doi: 10.1038/s41586-020-2834-3.
- Haack, D., Otto, K.A., Gundlach, B., Kreuzig, C., Bischoff, D., and Kührt, E.Blum J. . “Tensile strength of dust-ice mixtures and their relevance as cometary analog material.” Astronomy and Astrophysics 642 A218. doi: 10.1051/0004-6361/202037763.
- Bischoff, D., Kreuzig, C., Haack, D., Gundlach, B., and Blum, J. . “Sticky or not sticky? Measurements of the tensile strength of microgranular organic materials.” Monthly Notices of the Royal Astronomical Society 497 (3): 2517–2528. doi: 10.1093/mnras/staa2126.
- Fulle, M., Blum, J., Rotundi, A., Gundlach, B., Güttler, C., and Zakharov., V. . “How comets work: nucleus erosion versus dehydration.” Monthly Notices of the Royal Astronomical Society 493 (3): 4039–4044. doi: 10.1093/mnras/staa508.
- Gundlach, B., Fulle, M., and Blum, J. . “On the activity of comets: understanding the gas and dust emission from comet 67/Churyumov-Gerasimenko’s south-pole region during perihelion.” Monthly Notices of the Royal Astronomical Society 493 (3): 3690–3715. doi: 10.1093/mnras/staa449.
- Thomas, N., Ulamec, S., Kührt, E., Ciarletti, V., Gundlach, B., Yoldi, Z., Schwehm, G., Snodgrass, C., and Green, S.F. . “Towards New Comet Missions.” Space Science Reviews 215 47. doi: 10.1007/s11214-019-0611-0.
- Hu, X., Gundlach, B., von Borstel, I., Blum, J., and Shi, X. . “Effect of radiative heat transfer in porous comet nuclei: case study of 67P/Churyumov-Gerasimenko.” Astronomy and Astrophysics 630 A5. doi: 10.1051/0004-6361/201834631.
- Heinisch, P., Auster, H.-U., Gundlach, B., Blum, J., Güttler, C., Tubiana, C., Sierks, H., Hilchenbach, M., Biele, J., Richter, J., and Glassmeier, K.H. . “Compressive strength of comet 67P/Churyumov-Gerasimenko derived from Philae surface contacts.” Astronomy and Astrophysics 630 A2. doi: 10.1051/0004-6361/201833889.
- Heinisch, P., Auster, P., Gundlach, B., Blum, J., Güttler, C., Tubiana, C., Sierks, H., Hilchenbach, M., Biele, J., Richter, I., and Glassmeier, K.H. . “Compressive strength of comet 67P/Churyumov-Gerasimenko derived from Philae surface contacts.” Astronomy and Astrophysics 630: 1–8. doi: 10.1051/0004-6361/201833889.
- Lopez-Arreguin, A.J.R., Gundlach, B., and Stoll, E. . “Do lunar rover wheels sink equally on Earth and Moon?” Results in Physics 15 102617. doi: 10.1016/j.rinp.2019.102617.
- Pommerol, A., Jost, B., Poch, O., Yoldi, Z., Brouet, Y., Gracia-Berna, A., Cerubini, R., Galli, A, Wurz, P., Gundlach, B., Blum, J., Carrasco, N., Szopa, C., and Thomas, N. . “Experimenting with Mixtures of Water Ice and Dust as Analogues for Icy Planetary Material. Recipes from the Ice Laboratory at the University of Bern.” Space Science Reviews 215 37. doi: 10.1007/s11214-019-0603-0.
- Ellerbroek, L.E., Gundlach, B., Landeck, A., Dominik, C., Blum, J., Merouane, S., Hilchenbach, M., John, H., and van Veen, H.A. . “The footprint of cometary dust analogues – II. Morphology as a tracer of tensile strength and application to dust collection by the Rosetta spacecraft.” Monthly Notices of the Royal Astronomical Society 486 (3): 3755–3765. doi: 10.1093/mnras/stz1101.
- Wada, K., Grott, M., Michel, P., Walsh, K.J., Barucci, A.M., Blum, J., Ernst, C.M., Grundmann, J.T., Gundlach, B., Hagermann, A., Hamm, M., Jutzi, M., Kim, M.J., Kührt, E., Le Corre, L., Libourel, G., Lichtenheldt, R., and Maturilli, A. Messenger S. R. Michikami T. Miyamoto H. Mottola S. Nakamura A. M. Müller T. Nittler L. R. Ogawa K. Okada T. Palomba E. Sakatani N. Schröder S. Senshu H. Takir D. Zolensky M. E. . “Asteroid Ryugu before the Hayabusa2 encounter.” Progress in Earth and Planetary Science 5 82. doi: 10.1186/s40645-018-0237-y.
- Bischoff, D., Gundlach, B., Neuhaus, M., and Blum, J. . “Experiments on cometary activity: ejection of dust aggregates from an evaporating water-ice surface.” Monthly Notices of the Royal Astronomical Society 483 (1): 1202–1210. doi: 10.1093/mnras/sty3182.
- Fulle, M., Blum, J., Rotundi, A., Gundlach, B., Güttler, C., and Zakharov, V. . “How comets work: non-isothermal pebbles.” Astrophysical Journal Letters 879 (1). doi: 10.3847/2041-8213/ab2898.
- Häßner, D., Mutschke, H., Blum, J., Zeller, T., and Gundlach, B. . “Laboratory measurements of the sub-millimetre opacity of amorphous and micro-particulate H2O ices for temperatures above 80 K.” Monthly Notices of the Royal Astronomical Society 481 (4): 5022–5033. doi: 10.1093/mnras/sty2664.
- Gundlach, B., Ratte, J., Blum, J., Oesert, J., and Gorb, S. . “Sintering and sublimation of micrometre-sized water-ice particles: the formation of surface crusts on icy Solar System bodies.” Monthly Notices of the Royal Astronomical Society 479 (4): 5272–5287. doi: 10.1093/mnras/sty1839.
- Gundlach, B., Schmidt, K.P., Kreuzig, C., Bischoff, D., Rezaei, F., Kothe, S., Blum, J., Grzesik, B., and Stoll, E. . “The tensile strength of ice and dust aggregates and its dependence on particle properties.” Monthly Notices of the Royal Astronomical Society 479 (1): 1273–1277. doi: 10.1093/mnras/sty1550.
- Blum, J., Gundlach, B., Krause, M., Fulle, M., Johansen, A., Agarwal, J., von Borstel, I., Shi, X., Hu, X., Bentley, M.S., Capaccioni, F., Colangeli, L., Della Corte, V., Fougere, N., Green, S.F., Ivanovski, S., Mannel, T., Merouane, S., Migliorini, A., Rotundi, A., Schmied, R., and Snodgrass, C. . “Evidence for the formation of comet 67P/Churyumov-Gerasimenko through gravitational collapse of a bound clump of pebbles.” Monthly Notices of the Royal Astronomical Society 469 (2): S755–S773. doi: 10.1093/mnras/stx2741.
- Gärtner, S., Gundlach, B., Headen, T.F., Ratte, J., Oesert, J., Gorb, S.N., Youngs, T.G. A., Bowron, D.T., Blum, J., and Fraser, H.J. . “Micrometer-sized Water Ice Particles for Planetary Science Experiments: Influence of Surface Structure on Collisional Properties.” Astrophysical Journal 848 (2). doi: 10.3847/1538-4357/aa8c7f.
- Hu, X., Shi, X., Sierks, H., Fulle, M., Blum, J., Keller, H.U., Kührt, E., Davidsson, B., Güttler, C., Gundlach, B., Pajola, M., Bodewits, D., Vincent, J.-B., Oklay, N., Massironi, M., Fornasier, S., Tubiana, C., Groussin, O., Boudreault, S., Höfner, S., Mottola, S., Barbieri, C., Lamy, P.L., Rodrigo, R., Koschny, D., Rickman, H., A’Hearn, M., Agarwal, J., Barucci, M.A., Bertaux, J.-L., Bertini, I., Cremonese, G., Da Deppo, V., Debei, S., De Cecco, M., Deller, J., El-Maarry, M.R., Gicquel, A., Gutierrez-Marques, P., Gutiérrez, P.J., Hofmann, M., Hviid, S.F., Ip, W.-H., Jorda, L., Knollenberg, J., Kovacs, G., Kramm, J.-R., Küppers, M., Lara, L.M., Lazzarin, M., Lopez-Moreno, J.J., Marzari, F., Naletto, G., and Thomas, N. . “Seasonal erosion and restoration of the dust cover on comet 67P/Churyumov-Gerasimenko as observed by OSIRIS onboard Rosetta.” Astronomy and Astrophysics 604 A114. doi: 10.1051/0004-6361/201629910.
- Hu, X., Shi, X., Sierks, H., Blum, J., Oberst, J., Fulle, M., Kührt, E., Güttler, C., Gundlach, B., Keller, H.U., Mottola, S., Pajola, M., Barbieri, C., Lamy, P.L., Rodrigo, R., Koschny, D., Rickman, H., Agarwal, J., A’Hearn, M.F., Barucci, M.A., Bertaux, J.-L., Bertini, I., Boudreault, S., Büttner, I., Cremonese, G., Da Deppo, V., Davidsson, B., Debei, S., De Cecco, M., Deller, J., Fornasier, S., Groussin, O., Gutiérrez, P.J., Gutiérrez-Marqués, P., Hall, I., Hofmann, M., Hviid, S.F., Ip, W.-H., Jorda, L., Knollenberg, J., Kovacs, G., Kramm, J.R., Küppers, M., Lara, L.M., Lazzarin, M., López-Moreno, J.J., Marzari, F., Naletto, G., Oklay, N., Richards, M.L., Ripken, J., Thomas, N., Tubiana, C., and Vincent, J.-B. . “Thermal modelling of water activity on comet 67P/Churyumov-Gerasimenko with global dust mantle and plural dust-to-ice ratio.” Monthly Notices of the Royal Astronomical Society 469 (2): S295–S311. doi: 10.1093/mnras/stx1607.
- Ellerbroek, L.E., Gundlach, B., Landeck, A., Dominik, C., Blum, J., Merouane, S., Hilchenbach, M., Bentley, M.S., Mannel, T., John, H., and van Veen, H.A. . “The footprint of cometary dust analogues - I. Laboratory experiments of low-velocity impacts and comparison with Rosetta data.” Monthly Notices of the Royal Astronomical Society 469 (2): S204–S216. doi: 10.1093/mnras/stx1257.
- Gundlach, B., and Blum, J. . “Why are Jupiter-family comets active and asteroids in cometary-like orbits inactive?” Astronomy and Astrophysics 589 A111. doi: 10.1051/0004-6361/201527260.
- Lorek, S., Gundlach, B., Lacerda, P., and Blum, J. . “Comet formation in collapsing pebble clouds.” Astronomy and Astrophysics 587 A128. doi: 10.1051/0004-6361/201526565.
- Jost, B., Pommerol, A., Poch, O., Gundlach, B., Leboeuf, M., Dadras, M., Blum, J., and Thomas, N. . “Experimental characterization of the opposition surge in fine-grained water–ice and high albedo ice analogs.” Icarus 264: 109–131. doi: 10.1016/j.icarus.2015.09.020.
- Gundlach, B., Blum, J., Keller, H.U., and Skorov, Y.V. . “What drives the dust activity of comet 67P/Churyumov-Gerasimenko?” Astronomy and Astrophysics 583 A12. doi: 10.1051/0004-6361/201525828.
- Gundlach, B., and Blum, J. . “Regolith grain size and cohesive strength of near-Earth Asteroid (29075) 1950 DA.” Icarus 257: 126–129. doi: 10.1016/j.icarus.2015.04.032.
- Gudipati, M.S., Blum, J., Charnley, S.B., Chiavassa, T., Cordiner, M.A., Danger, G., Duvernay, F., Gundlach, B., Hartogh, P., Marboeuf, U., Mousis, O., Mrad, N.A., Simonia, I., Simonia, T., Theule, P., and Yang, R. . “Laboratory Studies Towards Understanding Comets.” Space Science Reviews 197: 101–105. doi: 10.1007/s11214-015-0192-5.
- Gundlach, B., and Blum, J. . “The stickiness of micrometer-sized water-ice particles.” Astrophysical Journal 798 (1). doi: 10.1088/0004-637X/798/1/34.
- Blum, J., Beitz, E., Bukhari, M., Gundlach, B., Hageman, J.-H., Heißelmann, D., Kothe, S., Schräpler, R., von Borstel, I., and Weidling, R. . “Laboratory Drop Towers for the Experimental Simulation of Dust-aggregate Collisions in the Early Solar System.” Journal of Visualized Experiments 88 51541. doi: 10.3791/51541.
- Blum, J., Gundlach, B., Mühle, S., and Trigo-Rodriguez, J.M. . “Comets formed in solar-nebula instabilities! - An experimental and modeling attempt to relate the activity of comets to their formation process.” Icarus 235: 156–169. doi: 10.1016/j.icarus.2014.03.016.
- Ali-Lagoa, V., Lionni, L, Delbo, M., Gundlach, B., Blum, J., and Licandro, J. . “Thermophysical properties of near-Earth asteroid (341843) 2008 EV5 from WISE data.” Astronomy and Astrophysics 561 A45. doi: 10.1051/0004-6361/201322215.
- Gundlach, B., and Blum, J. . “A New Method to Determine the Grain Size of Planetary Regolith.” Icarus 223 (1): 479–492. doi: 10.1016/j.icarus.2012.11.039.
- Jost, B., Gundlach, B., Pommerol, A., Oesert, J., Gorb, S.N., Blum, J., and Thomas, N. . “Micrometer-Sized Ice Particles for Planetary-Science Experiments - II. Bidirectional Reflectance.” Icarus 225 (1): 352–366. doi: 10.1016/j.icarus.2013.04.007.
- Gundlach, B., and Blum, J. . “Outgassing of Icy Bodies in the Solar System - II. Heat Transport in Dry, Porous Surface Dust Layers.” Icarus 219 (2): 618–629. doi: 10.1016/j.icarus.2012.03.013.
- Gundlach, B., Skorov, Y.V., and Blum, J. . “Outgassing of Icy Bodies in the Solar System - I. The Sublimation of Hexagonal Water Ice through Dust Layers.” Icarus 213 (2): 710–719. doi: 10.1016/j.icarus.2011.03.022.
- Gundlach, B., Kilias, S., Beitz, E., and Blum, J. . “Micrometer-Sized Ice Particles for Planetary-Science Experiments - I. Preparation, Critical Rolling Friction Force, and Specific Surface Energy.” Icarus 214 (2): 717–723. doi: 10.1016/j.icarus.2011.05.005.