411 citations · 2.7k across the 44 of their papers we have counts for
4 papers · 1 filter
The Macroporosity of Rubble Pile Asteroid Ryugu and Implications for the Origin of Chondrules
William Herbst, James P. Greenwood, Teng Ee Yap
We use the known surface boulder-size distribution of the C-type rubble pile asteroid Ryugu (NEA 162173) to determine its macroporosity, assuming it is a homogeneous granular aggre…
A Radiative Heating Model for Chondrule and Chondrite Formation
William Herbst, James P. Greenwood
We propose that chondrules and chondrites formed together during a brief radiative heating event caused by the close encounter of a small (m to km-scale), primitive planetesimal (S…
Untangling the Near-IR Spectral Features in the Protoplanetary Environment of KH 15D
Nicole A. Arulanantham, William Herbst, Martha S. Gilmore +2
We report on Gemini/GNIRS observations of the binary T Tauri system V582 Mon (KH 15D) at three orbital phases. These spectra allow us to untangle five components of the system: the…
A New Mechanism for Chondrule Formation: Radiative Heating by Hot Planetesimals
William Herbst, James P. Greenwood
We propose that chondrules are formed by radiative heating of pre-existing dust clumps during close fly-bys of planetesimals with incandescent lava at their surfaces. We show that…