247 citations · 778 across the 6 of their papers we have counts for
6 papers
Constraints on the ejecting-crust activity model on comet 67P/Churyumov-Gerasimenko
Nicholas Attree, Pedro Gutiérrez, Christian Schuckart +6
Reproducing the observed activity of comets with thermophysical models remains a primary challenge of cometary science. We use a pebble-based thermophysical model of gas-pressure b…
Localised ejection of dust and chunks on comet 67P/Churyumov-Gerasimenko: testing how comets work
Nicholas Attree, Christian Schuckart, Dorothea Bischoff +2
We extend an existing thermophysical activity model of comet 67P/Churyumov-Gerasimenko to include pressure buildup inside the pebbles making up the nucleus. We test various quantit…
Comets formed in solar-nebula instabilities! -- An experimental and modeling attempt to relate the activity of comets to their formation process (corrigendum included)
Jürgen Blum, Bastian Gundlach, Steffen Mühle +1
When comet nuclei approach the Sun, the increasing energy flux through the surface layers leads to sublimation of the underlying ices and subsequent outgassing that promotes the ob…
A new method to determine the grain size of planetary regolith
Bastian Gundlach, Jürgen Blum
Airless planetary bodies are covered by a dusty layer called regolith. The grain size of the regolith determines the temperature and the mechanical strength of the surface layers.…
Dust release and tensile strength of the non-volatile layer of cometary nuclei
Yuri Skorov, Jürgen Blum
We developed a thermophysical model for cometary nuclei, which is based upon the assumption that comets form by the gravitational instability of an ensemble of dust and ice aggrega…
Free Collisions in a Microgravity Many-Particle Experiment. I. Dust Aggregate Sticking at Low Velocities
René Weidling, Carsten Güttler, Jürgen Blum
Over the past years the processes involved in the growth of planetesimals have extensively been studied in the laboratory. Based on these experiments, a dust-aggregate collision mo…