Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Schneider, Niclas"'
Publikováno v:
Journal of Electrostatics 115 (2022) 103637
We present a method for measurements of electric dipole moments on (sub)-mm size (basalt) particles levitated in an acoustic trap and centered within a plate capacitor. If an electric field is applied the particles oscillate with specific frequencies
Externí odkaz:
http://arxiv.org/abs/2202.01979
Autor:
Schneider, Niclas, Musiolik, Grzegorz, Kollmer, Jonathan E., Steinpilz, Tobias, Kruss, Maximilian, Jungmann, Felix, Demirci, Tunahan, Teiser, Jens, Wurm, Gerhard
In protoplanetary disks, zones of dense particle configuration promote planet formation. Solid particles in dense clouds alter their motion through collective effects and back reaction to the gas. The effect of particle-gas feedback with ambient soli
Externí odkaz:
http://arxiv.org/abs/2103.03609
Small, pebble-sized objects and large bodies of planetesimal size both play important roles in planet formation. They form the evolutionary steps of dust growth in their own respect. However, at later times, they are also thought to provide backgroun
Externí odkaz:
http://arxiv.org/abs/2010.14368
Autor:
Jungmann, Felix, Bila, Tetyana, Kleinert, Laura, Mölleken, Andre, Möller, Rolf, Schmidt, Lars, Schneider, Niclas, Teiser, Jens, Utzat, Detlef, Volkenborn, Victoria, Wurm, Gerhard
Publikováno v:
Icarus Volume 355, February 2021, 114127
In (pre)-planetary environments, dust and sand grains regularly collide. They electrically charge and discharge during these events. In this work, we study if cosmic radiation has any influence on the equilibrium charge state on timescales of minutes
Externí odkaz:
http://arxiv.org/abs/2010.04016
Autor:
Demirci, Tunahan, Schneider, Niclas, Steinpilz, Tobias, Bogdan, Tabea, Teiser, Jens, Wurm, Gerhard
A planetesimal moves through the gas of its protoplanetary disc where it experiences a head wind. Though the ambient pressure is low, this wind can erode and ultimately destroy the planetesimal if the flow is strong enough. For the first time, we obs
Externí odkaz:
http://arxiv.org/abs/2003.09237
Autor:
Schneider, Niclas, Wurm, Gerhard
Publikováno v:
The Astrophysical Journal Letters, Volume 886, Number 2, 2019
In laboratory experiments, we study the motion of levitated, sedimenting clouds of sub-mm grains at low ambient pressure and at high solid-to-gas ratios $\epsilon$. The experiments show a collective behavior of particles, i.e. grains in clouds settle
Externí odkaz:
http://arxiv.org/abs/1912.01714
Publikováno v:
The Astrophysical Journal, 872:3, 2019
The streaming instability, as an example of instabilities driven by particle feedback on a gas flow, has been proven to have a major role in controlling the formation of planetesimals. Here, we present experiments to approach this situation in the la
Externí odkaz:
http://arxiv.org/abs/1902.02549
Autor:
Demirci, Tunahan, Kruss, Maximilian, Teiser, Jens, Bogdan, Tabea, Jungmann, Felix, Schneider, Niclas, Wurm, Gerhard
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 484, 2779 (2019)
In parabolic flight experiments we studied the wind induced erosion of granular beds composed of spherical glass beads at low gravity and low ambient pressure. Varying g-levels were set by centrifugal forces. Expanding existing parameter sets to a pr
Externí odkaz:
http://arxiv.org/abs/1901.07919
Autor:
Jungmann, Felix, Bila, Tetyana, Kleinert, Laura, Mölleken, Andre, Möller, Rolf, Schmidt, Lars, Schneider, Niclas, Teiser, Jens, Utzat, Detlef, Volkenborn, Victoria, Wurm, Gerhard
Publikováno v:
In Icarus February 2021 355
Autor:
Schneider, Niclas
In protoplanetaren Scheiben entstehen aus mikrometergroßen Teilchen durch Wachstums- und Konzentrationsmechanismen innerhalb weniger Millionen Jahre Planeten. Besonders die ersten Phasen der Bildung von Planetesimalen sind aufgrund mehrerer Wachstum
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7fd2c9bb8e00d19788411accc45d44fc