Research activities
- Stars, the Sun and the Solar system
- Orbit integration methods
- Asteroid and comet dynamics
- Threebody problem and multiple stars
- Solar research
- Magnetic cataclysmic variables
- Galaxies
- Dark matter in the Galaxy
- Cosmic gasdynamics
- Active galactic nuclei
- Multiple black hole systems in active galaxies
- Radio variability of active galactic nuclei
- Very long baseline interferometry
- Gamma-rays and other high-frequency radiation from AGN
- Optical AGN studies
- Multifrequency variability campaigns
- Host galaxies
- Seyfert galaxies
- Cosmology
- The PLANCK mission
- Hubble law and the Malmquist bias, both classical and cosmological
- Large scale structure of the galactic universe
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