64 citations · 175 across the 6 of their papers we have counts for
6 papers
Modeling Circumstellar Gas Emission around a White Dwarf Using Cloudy
Siyi Xu, Sherry Yeh, Laura. K. Rogers +9
The chemical composition of an extrasolar planet is fundamental to its formation, evolution and habitability. In this study, we explore a new way to measure the chemical compositio…
How Sublimation Delays the Onset of Dusty Debris Disk Formation Around White Dwarf Stars
Jordan K. Steckloff, John Debes, Amy Steele +4
Although numerous white dwarf stars host dusty debris disks, the temperature distribution of these stars differs significantly from the white dwarf population as a whole. Dusty deb…
A Characterization of the Circumstellar Gas around WD 1124-293 using Cloudy
Amy Steele, John Debes, Siyi Xu +2
Between 30 - 50% of white dwarfs (WDs) show heavy elements in their atmospheres. This "pollution" is thought to arise from the accretion of planetesimals perturbed by outer planet(…
Shallow Ultraviolet Transits of WD 1145+017
Siyi Xu, Na'ama Hallakoun, Bruce Gary +16
WD 1145+017 is a unique white dwarf system that has a heavily polluted atmosphere, an infrared excess from a dust disk, numerous broad absorption lines from circumstellar gas, and…
Constraints on Planetesimal Collision Models in Debris Disks
Meredith A. MacGregor, David J. Wilner, Claire Chandler +6
Observations of debris disks offer a window into the physical and dynamical properties of planetesimals in extrasolar systems through the size distribution of dust grains. In parti…
Resolved Millimeter-Wavelength Observations of Debris Disks around Solar-Type Stars
Amy Steele, A. Meredith Hughes, John Carpenter +4
The presence of debris disks around young main sequence stars hints at the existence and structure of planetary systems. Millimeter-wavelength observations probe large grains that…