Welcome to my home page! 

I study the hot universe, mostly the interstellar and intergalactic media with temperatures of million degrees or so. Here you can have an overview of my astronomical research. 

Current brief CV

Current and Recent Projects

• Galactic center
  

• Hubble/NICMOS survey of the Galactic center
  • near-IR continuum and Paschen-Alpha  line mapping over a 32'x13' field of view around Sgr A*
  • 144 orbits
• Deep Chandra survey of the Galactic Center (in collaboration with M. Muno et al.)
• Large scale (0.8x2 deg^2) Chandra  survey of Galactic Center

• The hot interstellar medium

• X-ray absorption line spectroscopy of diffuse hot gas, using Chandra/XMM-Newton grating and FUSE far-UV spectra.
• CCD imaging with Suzaku
  

• Galaxies
  • X-ray study of M31 nucleus and bulge (a story in space.com)
    
  • X-ray study of edge-on galaxies; Chandra news-release
  • FUSE Observations of edge-on galaxies; news-release
  • Chandra study of AzTEC millimeter sources
    
  • Hydrodynamic simulations of gaseous bulges and halos
    

• Supernova  remnants and superbubbles
  
• DA 530 (Chandra and Suzaku observations)
• Radio and X-ray study of the Crab-like SNR G54.1+0.3
  
• Deep (300 ks) Chandra study of starforming region N11 in the LMC (in collaboration with Y.-H. Chu et al.)
  

Students and Postdocs

• Graduate students: Hui Dong, Shikui Tang, Roger Ledgister, David Welch, Seth Johnson
  
• Graduate students in Nanjing University: Jiangtao Li, Zhaoyu Zuo, and Bing Jiang
• Postdoc: Jiren Liu
  
• Former Students and Postdocs

Selected recent talks

• Global Hot Gas in and around the Galaxy (in the Local Bubble and Beyond II workshop, 2008 , Philadadelphia)
• Stellar Feedback and Galaxy Evolution (UMass 2008)
  
• Visualization for Science and Education (CfA, 2007)
  
• What is getting in and/or out of nearby disk galaxies? (Caltech, 2006)
  
• Chandra Observations: High-energy Processes at arcsecond Resolution (2006 Galactic Center Workshop, Bad Honnef, Germany)
  
• Chandra observations of extraplanar hot gas, in Chandra view of galaxies (Cambridge, MA, 2004)
• Galaxy formation from large-scale structure: a multiwavelength case study of A2125 complex at z=0.25 (Italy, 2004)
• Ultraluminous X-ray sources in nearby galaxies (Yale, 2004)
• Missing supernova remnants and the Galactic ridge X-ray emission (COSPAR meeting, Paris, 2004)