wpeB.gif (12814 bytes)



I am an astronomy professor at University of Massachusetts Amherst. Here you can get a glimpse of my research activity. My recent research has been mostly on galactic ecosystems, especially various matter and energy flows and relevant astrophysical processes in galaxies. I have concentrated on four closely-related aspects of this research topic:
  1. examining various high-energy sources of the interstellar medium (e.g., supernova remnants, superbubbles, and galactic nuclear regions around supermassive black holes);
  2. characterizing the global structure as well as the physical and chemical states of hot gas in and around galaxies; 
  3. investigating the interplay of diffuse hot plasma with other galactic components;
  4. exploring the interaction of galaxies with their environment, particularly the intragroup/cluster media.
I primarily uses radio, infrared, ultraviolet, and X-ray observations to conduct these studies. I also carry out theoretical and computational studies with my students and collaborators.

Brief CV   CV_longer version (including publication)

Research Projects

  • Galactic Nuclear Region:
    • Systematic X-ray study of  the Galactic supermassive black hole Sgr A* and its environment
    • Magnetic, molecular, and dust properties of the Galactic central molecular zone
  •  Feedback and Ecosystem of Galaxies:
    • Analysis of the deep X-ray observations of the 30 Dorado nebula
    • Multi-wavelength investigation of selected nearby face-on galaxies
    • Multi-wavelength study of edge-on galaxies, including CHANG-ES (Continuum HAlos in Nearby Galaxies – an EVLA Survey), as well as Chandra/XMM-Newton surveys
    • Multi-wavelength study of outer circumgalactic and intracluster media
    • Multi-wavelength study of the brightest galaxies in the universe: gravitationally lensed extreme dusty star-forming galaxies at high redshifts (PASSAGES collaboration)

Students and Postdocs

Selected recent invited talks