I currently work primarily in X-ray astrophysics. I am also starting to learn more about physics-informed machine learning.
research activities:
astrophysics
I am interested in understanding the nature of multi-phase galactic outflows.
The CC85 model assumes energy and mass is injected from supernovae uniformly within a sphere. This drives a hot stable supersonic spherical galactic outflow. Throughout the years there have been many modifications by others. The observationally-motivated changes I have considered are:
- allow additional mass injection & non-spherical expansion outside the sphere (mnras 2021)
- assume energy and mass injection uniformly within a ring (apjL 2022)
- assume non-uniform energy and mass injection in a sphere (mnrasL 2023)
machine learning
studying neural partial differential equations for model discovery
publications
You can find my publications listed here on arXiv or sao/nasa ads.
first author
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Nguyen, D. D., Thompson, T. A., Schneider, E. E., Lopez, S., Lopez, L. A., Dynamics of hot galactic winds launched from spherically-stratified starburst cores, 2023, Monthly Notices of the Royal Astronomical Society Letters, 518, 1,
arxiv:2210.07193
,ads:2022MNRAS.tmpL.134N
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Nguyen, D. D., Thompson, T. A., Galactic winds and bubbles from nuclear starburst rings, 2022, The Astrophysical Journal Letters, 935, 2,
arXiv:2205.13465
,ads:2022ApJ…935L..24N
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Nguyen, D. D., Thompson, T. A., Mass-Loading and Non-Spherical Divergence in Hot Galactic Winds: Implications for X-Ray Observations, 2021, Monthly Notices of the Royal Astronomical Society, 508, 4,
arXiv:2108.07343
,ads:2021MNRAS.tmp.2635N
co-author
- Lopez, S., Lopez, L. A., Nguyen, D. D., Thompson, T. A., Mathur, S., Bolatto, A. D., Vulic, N., Sardone, A., X-ray Properties of NGC 253’s Starburst-Driven Outflow, 2022, submitted (accepted ApJ),
arxiv:2209.09260
- Lopez, L. A., Mathur, S., Nguyen, D. D., Thompson, T. A., Olivier, G. M., Temperature and Metallicity Gradients in the Hot Outflows of M82, 2020, The Astrophysical Journal, 904, 2,
arxiv:2006.08623
,ads:2020ApJ…904..152L