Astrophysics Group

Basic Information

• Leader：Dr. Ko, Chung-Ming
• Room：S4-902
• Extension：65966

Introduction of the Group

We are interested in the following seemingly different topics：

The role played by cosmic rays and magnetic field in ISM dynamics and evolution:

• the effect of cosmic rays on Parker instability (MHD-CR simulation)
• Parker-Jeans instability and magneto-rotational instability with cosmic rays (linear analysis)
• stability of four-fluid cosmic ray plasma system: thermal plasma, cosmic rays, two oppositely propagating Alfven waves (linear analysis)
• stellar winds with/without magnetic field (theory)
• cosmic ray propagation (theory)
• evolution of ISM with magnetic field and/or cosmic rays (toy models)

Star clusters and our galaxy:

• encounter of an open cluster with a molecular cloud (NBody simulation)
• survivability of embedded star cluster in a dispersing molecular cloud (NBody simulation)
• mass segregation and relaxation of open clusters (NBody simulation)
• triggered star formation in molecular clouds (toy model)
• structure of open clusters from 2MASS (data analysis)
• galactic structure and its luminosity function from 2MASS (data analysis)
• internal dynamics of open clusters from proper motion (data analysis)

Other galaxies:

• strong gravitational lensing by relativistic modified newtonian dynamics (MOND) (theory)
• dynamical mass and lensing mass of galaxies (theory and data analysis)
• multi-wavelength properties of elliptical galaxies (data analysis)

Others:

• virtual observatory (VO): setting up a preliminary VO at NCU (software development)
• rotation of minor planets (numerical)
• stability of binary system (theory and numerical)
• multi-fluid plasma (theory)

Other others:

• distribution of prime numbers (statistics)
• darwinian evolution in harsh environment (numerical)