128 citations · 218 across the 2 of their papers we have counts for
3 papers · 1 filter
Modeling Porous Dust Grains with Ballistic Aggregates I: Geometry and Optical Properties
Yue Shen, B. T. Draine, Eric T. Johnson
We investigate the scattering and absorption of light by random ballistic aggregates of spherical monomers. We present a general measure for the porosity of an irregular particle.…
Diffusive Migration of Low-Mass Proto-planets in Turbulent Disks
Eric T. Johnson, Jeremy Goodman, Kristen Menou
Torque fluctuations due to magnetorotational turbulence in proto-planetary disks may greatly influence the migration patterns and survival probabilities of nascent planets. Provide…
SDSS J0903+5028: A New Gravitational Lens
David E. Johnston, Gordon T. Richards, Joshua A. Frieman +22
We report the discovery of a new gravitationally lensed quasar from the Sloan Digital Sky Survey, SDSS J090334.92+502819.2. This object was targeted for SDSS spectroscopy as a Lumi…