PhD student in the High Energy Group
About Me
I am a PhD student in astronomy at the Max Planck Institute for Extraterrestrial Physics in Garching, Germany. I was born and raised in Hong Kong and my name is 楊鎮熙 in Chinese.
My primary research revolves around X-ray diffuse emissions of various physical scales, and making use of X-ray spectroscopy to infer properties of the constituents of the diffuse X-ray background. Recently, I have been a ‘cartographer’ of the Local Hot Bubble, creating 3D map of the hot plasma in the solar neighbourhood.
In addition to my full-time research in X-ray astronomy, I have been a lifelong fan of the beautiful game ⚽ which I play regularly with friends.
- Interstellar Medium
- Diffuse X-ray Background
- Solar Wind Charge Exchange
- Galactic Outflows
PhD in Astronomy
Max Planck Institute for Extraterrestrial Physics
MPhil in Astrophysics
University of Hong Kong
BSc in Astronomy & Physics
University of Hong Kong
Recently, I concern myself with the properties the local interstellar medium (LISM): our Solar System lives in a low density environment called the Local Hot Bubble (LHB), generally believed to be created by a sucession of supernova explosions a few to tens of million years ago. These explosions heated the bubble to ~106 Kelvin (~0.1 keV) today, a temperature at which the gas emits thermally in the X-ray band.
Looking from the inside, a X-ray all-sky survey instrument is therefore able to capture a holistic view of the LHB. This dataset is available in the form of the eROSITA All-Sky Surveys (eRASSs), which I rely on to decompose the diffuse X-ray background into its physical constitutes including the LHB, and to constrain their physical properties.
