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William T. Reach

Researcher at Universities Space Research Association

Publications -  545
Citations -  95523

William T. Reach is an academic researcher from Universities Space Research Association. The author has contributed to research in topics: Galaxy & Interstellar medium. The author has an hindex of 131, co-authored 535 publications receiving 90496 citations. Previous affiliations of William T. Reach include California Institute of Technology & Space Telescope Science Institute.

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Journal ArticleDOI

Understanding polarized dust emission from $\rho$ Ophiuchi A in light of grain alignment and disruption by radiative torques

TL;DR: In this article, the authors used the archival SOFIA/HAWC+ polarimetric data observed toward Ophiuchus (Oph) A cloud hosted by a B association star at 89 and 154 µm and found that the fractional polarization of thermal dust emission first increases with grain temperature and then decreases once the grain temperature exceeds µm 25-32 K. The latter trend differs from the prediction of the popular RAdiative Torques (RATs) alignment theory which implies a monotonic increase of the polarization fraction with thegrain temperature.
Proceedings ArticleDOI

Exclusion of Tiny Interstellar Dust Grains from the Heliosphere

TL;DR: In this article, the authors present new calculations of grain trajectories and the resultant grain density distribution for small ISDGs propagating through the heliosphere, using three-dimensional (3-D) magnetohydrodynamic/kinetic models designed to match data on the shape of the termination shock and the relative deflection of interstellar neutral H and He flowing into the helIosphere.