Our universe is fascinating,
so why not simulate it?

I am a computational astrophysicist. I use numerical simulations to understand the powerful feedback processes
in the universe, and how they influence the evolution of galaxies and galaxy clusters.
My research interests range from supermassive black hole jets in massive galaxies and galaxy clusters,
Fermi bubbles in our Milky-Way galaxy, to galactic winds driven by supernova explosions.

  • Lorem
  • Ipsum
  • Dolor

Supermassive black hole jets
in galaxy clusters

Relativistic jets from supermassive black holes (SMBHs) are one of the most powerful phenomena in the universe, even affecting evolution of galaxy clusters with sizes billions of times greater than their accretion disks. They are the most promising mechanism for providing heat to the cluster gas; however, how exactly the jet energy is transformed into heat is still debated. Our group uses simulations beyond ideal hydrodynamics to investigate how SMBH feedback is impacted by important but often neglected effects including magnetic field, conduction, viscosity, and cosmic rays. [Read more]

Origin of the Fermi bubbles

Fermi bubbles are two giant gamma-ray bubbles above and below the center of our Milky-Way galaxy, likely originating from past nuclear starburst or SMBH activity at the Galactic center. Becasuse of the proximity, the Fermi bubbles are excellent laboratories for studying feedback processes with unprecedented details. Our group uses simulations self-consistently including magnetic fields and cosmic rays to study the formation of the bubbles and the origin of the observed gamma-ray radiation. [Read more]

Starburst driven galactic winds

Galactic winds driven by bursts of supernova explosions are critical ingredients in shaping properties of galaxies. However, the launching mechanism for the galactic winds are not well understood. Recent studies suggest that cosmic-ray (CR) driven winds are the most promising mechanism. Our group performs simulations including relevant CR physics to investigate how the details of CR transport and interaction with gas impact the properties of the winds, the galaxies, and the circumgalactic medium. [Read more]

About Me

I grew up in Taipei, Taiwan. During my academic career, I have lived in many places in the US including Illinois, Michigan, and Maryland.
I am proud to be a mother of two children. When I am not working, most likely I am with them. When I need rests from taking care of them, I work (or sleep, of course).

Contact Info

Physical Sciences Complex, Bldg. 415
College Park, MD 20742, USA
hsyang[at]astro[dot]umd[dot]edu