Modelling of nanometer scale dust grains in tokamak
Sign Up to like & getrecommendations! Published in 2020 at "Contributions to Plasma Physics"
DOI: 10.1002/ctpp.201900136
Abstract: Dust poses a serious threat to tokamak operation and safety. It is important to study the behaviour of dust grains under tokamak's discharge conditions, which depends heavily on their size and charge. Existing simulations mainly… read more here.
Keywords: guiding centre; dust; grains tokamak; scale dust ... See more keywords
Motion of dust ejected from the surface of asteroid (101955) Bennu
Sign Up to like & getrecommendations! Published in 2020 at "Heliyon"
DOI: 10.1016/j.heliyon.2020.e05275
Abstract: From Jan. 6, 2019 to Feb. 18, 2019, OSIRIS-REx observed asteroid (101955) Bennu ejecting 11 plumes of dust, of which part is escaping and another part is re-captured by the asteroid. The relative magnitudes of… read more here.
Keywords: motion dust; dust grains; 101955 bennu; bennu ... See more keywords
Dust modeling of the combined ALMA and SPHERE datasets of HD 163296. Is HD 163296 really a Meeus group II disk
Sign Up to like & getrecommendations! Published in 2018 at "Astronomy and Astrophysics"
DOI: 10.1051/0004-6361/201732299
Abstract: Context. Multiwavelength observations are indispensable in studying disk geometry and dust evolution processes in protoplanetary disks. Aims. We aim to construct a three-dimensional model of HD 163296 that is capable of reproducing simultaneously new observations… read more here.
Keywords: disk; scattered light; group; dust grains ... See more keywords
Emitting large dust grains: Floating potential and potential wells
Sign Up to like & getrecommendations! Published in 2018 at "Physics of Plasmas"
DOI: 10.1063/1.5010042
Abstract: In this paper we present a new theory, Modified Orbital Motion Limited - EMission, which examines the effect of electron emission on the charging of large dust grains. One of the most important aspects is… read more here.
Keywords: emitting large; floating potential; dust grains; large dust ... See more keywords
The impact of astrophysical dust grains on the confinement of cosmic rays
Sign Up to like & getrecommendations! Published in 2021 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stab179
Abstract: We argue that charged dust grains could significantly impact the confinement and transport of galactic cosmic rays. For sub-GeV to ~1000GeV cosmic rays, small-scale parallel Alfven waves, which isotropize cosmic rays through gyro-resonant interactions, are… read more here.
Keywords: impact astrophysical; cosmic rays; dust grains; confinement cosmic ... See more keywords
Infrared polarimetry of Mrk 231: scattering off hot dust grains in the central core
Sign Up to like & getrecommendations! Published in 2017 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stw2491
Abstract: We present high-angular (0.17−0.35 arcsec) resolution imaging polarimetric observations of Mrk 231 in the 3.1 µm filter using MMT-Pol on the 6.5-m MMT, and in the 8.7 µm, 10.3 µm, and 11.6 µm filters using… read more here.
Keywords: mrk 231; dust grains; infrared polarimetry; hot dust ... See more keywords
The formation of peptide-like molecules on interstellar dust grains
Sign Up to like & getrecommendations! Published in 2018 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/sty2066
Abstract: Molecules with an amide functional group resemble peptide bonds, the molecular bridges that connect amino acids, and may thus be relevant in processes that lead to the formation of life. In this study, the solid… read more here.
Keywords: peptide like; dust grains; formation; formation peptide ... See more keywords
Infrared dust arcs around stars – I. Effect of the radiation pressure
Sign Up to like & getrecommendations! Published in 2019 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stz1105
Abstract: In this paper we consider the distribution of the interstellar dust in the vicinity of the star under an influence of the stellar gravitation and radiation pressure. This study is applicable to the stars with… read more here.
Keywords: radiation; dust grains; dust; radiation pressure ... See more keywords
Dust as probes: Determining confinement and interaction forces.
Sign Up to like & getrecommendations! Published in 2020 at "Physical review. E"
DOI: 10.1103/physreve.102.043210
Abstract: Complex plasmas are interesting systems as the charged dust can self-assemble into different types of ordered structures. To understand the mechanisms which govern the transitions from one type of structure to another, it is necessary… read more here.
Keywords: ion flow; dust charge; interaction; ion ... See more keywords