Dustpol-py code

DustPOL-py is a simple code used to model the polarization of starlight and thermal dust emission induced by aligned dust grains based on the Radiative Torque (RAT) Paradigm. The DustPOL-py code predicts the dust polarization degree for a given local physical condition of gas and radiation field, and the optimal realization where the magnetic fields lie in the plane of the sky. A stable version of Dustpol-py is available here. The code is particularly useful to interpret starlight and dust polarization and probe grain alignment and grain evolution processes. DustPOL-py was originally developed by our group and has been continuously improved by our collaborator, Dr. Le Ngoc Tram, from Leiden University.

POLARIS code

POLArized RadIation Simulator (POLARIS) is the 3D Monte-Carlo radiative transfer code used to model polarized thermal dust emission from aligned dust grains by radiative torques (RATs) using the classical RAT alignment theory. The code was first introduced in 2016 by Dr. Stefan Reissl from Heidelberg University.

Since 2021, PhD candidate Nguyen Chau Giang from our group has been advancing the original POLARIS by including new dust physical effects developed recently, including Magnetically enhanced radiative torque (MRAT) and Radiative Torque Disruption (RATD) effects. The updated POLARIS is especially important for physical modeling of dust polarization from dense star-forming regions or intense radiation fields, such as protostellar environments, massive star-forming regions, and dusty tori around active galactic nuclei. A stable version of updated POLARIS is available here.

We use existing and new observational (polarization) data from world-class observatories,  such as SOFIA/HAWC+, JCMT, ALMA, NOEMA, and incoming SKA, covering multi-wavelengths (UV/optical to FIR/submm/cm) and multi-scales from the diffuse Galactic scales, to Molecular Clouds and Filaments to Protostellar Cores and Disks, and the Galactic Center around Supermassive Black Hole Sgr A*.

gmunu HPC 

• 1 Server, 5 nodes, 1025 CPU cores

• To be upgraded to 5000 cpu cores

MHD Simulations Databases

• Catalogs of Astrophysical Turbulence Simultations from Dr. Burkhart: CATS 

• The Galactica Simulation Database from Dr. Hennebelle: Galactica