Department of Interplanetary Matter
- Skalnate Pleso Observatory - 61 cm astrometric and photometric reflector with CCD camera, all sky fireball fish-eye cameras
- Modra Observatory - receiver of forward scatter meteor radar
The main topics of research are as follows: The 61 cm telescope at the Skalnate Pleso Observatory is used for CCD photometry and astrometry of asteroids and comets. Theoretical investigation Meteor head echoes from the Springhill high-power meteor radar are analyzed. The filamentary structure of selected meteor showers and study of the meteor sporadic background activity by the forward scatter radio system operating over the triangle Lecce-Bologna-Modra are identified. Ozone in the upper mesosphere is detected with ground based radio observations. The cosmic dust particles provided by NASA to determine their composition and physical properties have been reanalyzed. The results can be used for the study of their behaviour in planetary atmospheres and interplanetary space, especially their dynamics and reflection conditions and a better understanding of the disintegration processes. The fireball fish-eye cameras are operated within the framework of the European Fireball Network. Transfer orbits among different populations of small bodies in the Solar System regarding near-Earth objects are theoretically investigated.
The investigation of activity of selected cometary nuclei and their influence on the physical and dynamical evolution of these bodies, possible candidates on near-Earth objects and the evolution of a cometary nucleus and its activity at large heliocentric distances is carried out. The distribution of meteoroid particles in the inner Solar System is described. The structure and dynamics of meteoroid streams and evolution of their parent bodies are analyzed. The methods for separation of meteoroid streams from the sporadic background has been developed. A search for meteoroid streams of asteroidal origin has been performed. The meteoroid population in the vicinity of the Earth's orbit, including the mass distribution of particles in meteoroid streams and their background, the determination of the internal structure of streams, their aging and decay are investigated.