Recent Submissions

  • Detailed model of the growth of fluffy dust aggregates in a protoplanetary disk: Effects of nebular conditions 

    Xiang, C.; Carballido, A.; Matthews, L.S.; Hyde, T.W. (AAS Publishing, 2020-07)
    Coagulation of dust aggregates plays an important role in the formation of planets and is of key importance to the evolution of protoplanetary disks (PPDs). Characteristics of dust, such as the diversity of particle size, ...
  • Dust charging in dynamic ion wakes 

    Matthews, L.S.; Sanford, D. L.; Kostadinova, E.; Ashrafi, K.S.; Guay, E.; Hyde, T. W. (AIP Publishing, 2020-02-14)
    A molecular dynamics simulation of ion flow past dust grains is used to investigate the interaction between a pair of charged dust particles and streaming ions. The charging and dynamics of the grains are coupled and derived ...
  • Mapping the Plasma Potential in a Glass Box 

    Scott, Lori; Ellis, Naoki; Chen, Mudi; Matthews, Lorin Swint.; Hyde, Truell Wayne. (IEEE Transactions on Plasma Science, 2019-07)
    Modeling the dynamics of charged dust particles, confined in a glass box placed on the lower electrode of a Gaseous Electronics Conference cell, requires that the interactions between the charged dust, plasma, and boundaries ...
  • Spectral approach to transport in the two-dimensional honeycomb lattice with substitutional disorder 

    Kostadinova, Eva Georgieva, 1992-; Liaw, C. D.; Hering, Amanda S.; Cameron, Adam; Guyton, Forrest.; Matthews, Lorin Swint.; Hyde, Truell Wayne. (Physical Review B, 2019-01)
    The transport properties of a disordered two-dimensional (2D) honeycomb lattice are examined numerically using the spectral approach to the 2D percolation problem, characterized by an Anderson-type Hamiltonian. In our ...
  • The initial structure of chondrule dust rims I: electrically neutral grains 

    Xiang, Chuchu (Icarus, 2019-03)
    In order to characterize the early growth of fine-grained dust rims (FGRs) that commonly surround chondrules in carbonaceous chondrites, we perform numerical simulations of dust accretion onto chondrule surfaces. We employ ...
  • Discrete stochastic charging of aggregate grains 

    Matthews, Lorin Swint.; Shotorban, Babak; Hyde, Truell Wayne. (Physical Review E, 2018-05)
    Dust particles immersed in a plasma environment become charged through the collection of electrons and ions at random times, causing the dust charge to fluctuate about an equilibrium value. Small grains (with radii less ...
  • Transport properties of disordered 2D complex plasma crystal 

    Kostadinova, Eva Georgieva, 1992-; Guyton, Forrest.; Cameron, Adam; Busse, Kyle; Liaw, Constanze.; Matthews, Lorin Swint.; Hyde, Truell Wayne. (Contributions to Plasma Physics, 2018-01)
    In this work, we investigate numerically the transport properties of a 2D complex plasma crystal using diffusion of coplanar dust lattice waves. In the limit where the Hamiltonian interactions can be decoupled from the ...
  • The magnetic field inside a protoplanetary disk gap opened by planets of different masses 

    Carballido, Augusto; Matthews, Lorin; Hyde, Truell W. (Monthly Notices of the Royal Astronomical Society, 2017)
    We perform magnetohydrodynamic simulations of protoplanetary disc gaps opened by planets of various masses, with the aim of calculating the strength of the vertical magnetic field threading such gaps. We introduce a ...
  • Delocalization in infinite disordered two-dimensional lattices of different geometry 

    Kostadinova, Eva; Busse, Kyle; Ellis, Naoki; Padgett, Josh; Liaw, Constanze; Matthews, Lorin S.; Hyde, Truell W. (Physical Review B, 2017-12-06)
    The spectral approach to infinite disordered crystals is applied to anAnderson-type Hamiltonian to demonstrate the existence of extended states for nonzero disorder in 2D lattices of different geometries. The numerical ...
  • Physical interpretation of the spectral approach to delocalization in infinite disordered systems 

    Kostadinova, Eva; Liaw, Constanze; Matthews, Lorin; Hyde, Truell (Materials Research Express, 2016-12-05)
    In this paper we introduce the spectral approach to delocalization in infinite disordered systems and provide a physical interpretation in context of the classical model of Edwards and Thouless. We argue that spectral ...
  • Multipole Expansions of Aggregate Charge: How Far to Go? 

    Matthews, Lorin; Coleman, Douglas A.; Hyde, Truell W. (IEEE Transactions on Plasma Science, 2016-04)
    Aggregates immersed in a plasma or radiative environment will have charge distributed over their extended surface. Previous studies have modeled the aggregate charge using the monopole and dipole terms of a multipole ...
  • Coagulation in the Vicinity of a Gap-Opening Jupiter-Mass Planet 

    Carballido, Augusto (Astrophysical Journal, 2016-06)
    We analyze the coagulation of dust in and around a gap opened by a Jupiter-mass planet. To this end, we carry out a high-resolution magnetohydrodynamic (MHD) simulation of the gap environment, which is turbulent due to the ...
  • Photophoretic Force on Aggregate Grains, Monthly Notices of the Royal Astronomical Society 

    Matthews, Lorin; Kimery, J. B.; Wurm, G.; de Beule, C.; Kuepper, M; Hyde, T. W. (Monthly Notices of the Royal Astronomical Society, 2016-01-21)
    The photophoretic force may impact planetary formation by selectively moving solid particles based on their composition and structure. This generates collision velocities between grains of different sizes and sorts the ...
  • Measurement of net electric charge and dipole moment of dust aggregates in a complex plasma 

    Yousefi, Raziyeh.; Davis, Allen; Carmona-Reyes, Jorge; Matthews, Lorin Swint.; Hyde, Truell Wayne. (Physical Review E, 2014-09-02)
    Understanding the agglomeration of dust particles in complex plasmas requires knowledge of basic properties such as the net electrostatic charge and dipole moment of the dust. In this study, dust aggregates are formed from ...
  • Cosmic Dust Aggregation with Stochastic Charging 

    Matthews, Lorin Swint.; Shotorban, Babak; Hyde, Truell Wayne. (Astrophysical Journal, 2013-10-04)
    The coagulation of cosmic dust grains is a fundamental process which takes place in astrophysical environments, such as presolar nebulae and circumstellar and protoplanetary disks. Cosmic dust grains can become charged ...
  • Photophoresis on polydisperse basalt microparticles under microgravity 

    Kupper, M.; de Beule, C.; Wurm, Gerhard.; Matthews, Lorin Swint.; Kimery, Jesse B.; Hyde, Truell Wayne. (Journal of Aerosol Science, 2014-10)
    Photophoresis is a force which can dominate the motion of illuminated aerosols in low pressure environments of laboratory experiments, planetary atmospheres or protoplanetary disks. In drop tower experiments we quantified ...
  • Interaction force in a vertical dust chain inside a glass box 

    Kong, Jie; Qiao, Ke; Matthews, Lorin Swint.; Hyde, Truell Wayne. (Physical Review E, 2014-07-31)
    Small number dust particle clusters can be used as probes for plasma diagnostics. The number of dust particles as well as cluster size and shape can be easily controlled employing a glass box placed within a Gaseous ...
  • Mode couplings and resonance instabilities in dust clusters 

    Qiao, Ke; Van Oeveren, E.; Matthews, Lorin Swint.; Hyde, Truell Wayne. (Physical Review E, 2013-10-16)
    The normal modes for three to seven particle two-dimensional (2D) dust clusters in a complex plasma are investigated using an N-body simulation. The ion wakefield downstream of each particle is shown to induce coupling ...
  • Effects of monomer shape on the formation of aggregates from a power law monomer distribution 

    Perry, Jonathan D.; Kimery, Jesse B.; Matthews, Lorin Swint.; Hyde, Truell Wayne. (New Journal of Physcis, 2013)
    The coagulation of dust aggregates is an important process in many physical systems such as the Earth’s upper atmosphere, comet tails and protoplanetary discs. Numerical models which study the aggregation in these systems ...
  • Mode Couplings and Conversions for Horizontal Dust Particle Pairs in Complex Plasmas 

    Qiao, Ke; Kong, Jie; Zhang, Zhuanhao.; Matthews, Lorin Swint.; Hyde, Truell Wayne. (IEEE Transactions on Plasma Science, 2013-04)
    The normal modes for horizontal dust particle pairs in a complex plasma are investigated using two methods, a numerical calculation and a molecular dynamics simulation. The ion wakefield downstream of each particle and the ...

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