5 papers
Investigation of Calcium Dust in the Interstellar Medium
Ya-Yu Chu, Sascha Zeegers, Hsien Shang +7
Calcium is a highly depleted element in the interstellar medium (ISM), however its composition in the solid phase remains elusive. The detection of Ca-bearing dust has been limited…
Iterative Poisson Solvers for Self-gravity with the GPU Code Astaroth
Ruben Krasnopolsky, Touko Puro, Wei-Wen Li +5
We present the development and benchmarking of Poisson solvers for graphics processing units (GPUs). Implemented in the Astaroth platform, the solvers feature high computational ef…
Polytropic Wind-Driven Bubbles and their Shock Structures in Radially Stratified Ambient Media
Dmitrii Zagorulia, Hsien Shang, Ruben Krasnopolsky
We extend the analytic expressions for polytropic wind-driven bubbles and their shock structures, formulated initially in Koo and McKee 1992(a,b), focusing on spherically symmetric…
A Spectroastrometric Study of the Low-velocity Wind from DG Tau A
Yu-Ru Chou, Michihiro Takami, Shin-Ping Lai +9
We obtained high spectral resolution spectra ( 2.5 km s) for DG Tau A from 4800 Ã to 7500 Ã using Subaru High Dispersion Spectrograph (HDS) for the first time. T…
Evidence of a Disk-wind Origin for Fluorescent H in Classical T Tauri Stars
Matt Kalscheur, Kevin France, Brunella Nisini +8
We use FUV spectra of 36 T Tauri stars, predominately from 's ULLYSES program, to examine the kinematic properties of fluorescent H emission li…