91��ý

The Farabi Supercomputer Center at the Al-Farabi Kazakh National University conducts fundamental astrophysical research aimed at studying the evolution of star systems, accretion of matter, as well as the formation of circumstellar shells and cosmic dust.

Scientific work is carried out within the framework of two interrelated important projects. The first of them is the project "Physics of accretion flows in cataclysmic variables with different accretion rates" led by Serik Khokhlov, and the second is the project "Investigation of observational manifestations of FS CMa–type stars using computer modeling methods" led by Aldiyar Agishev.

The main purpose of these studies is to determine the mechanisms of matter transfer in binary star systems, the processes of formation of accretion disks and circumstellar shells, as well as changes in the observed characteristics of stars and factors influencing their further evolution. Within the framework of the projects, large-scale photometric and spectral observations are carried out with the participation of observatories in Kazakhstan, the USA, Mexico and the Czech Republic, and the data obtained are compared with the results of computer modeling. This allows scientists to better understand the nature of the studied space objects.

In this regard, the Farabi Supercomputer Center plays a key role in the implementation of projects, since modern astrophysical research, in addition to telescopic observations, requires an extremely powerful computing infrastructure. To simulate the motion of circumstellar matter, the structure of accretion disks, and the propagation of radiation in gas-dust shells, it is necessary to perform millions of complex computational operations and analyze various physical scenarios. The supercomputer performs SPH and MHD calculations of accretion fluxes, accurately simulates spiral density waves, unsteady phenomena in accretion disks, and matter transfer in close binary star systems. Such high-level calculations open up unique opportunities for studying physical processes that cannot be recreated in the laboratory. In addition, the Russian CVlab software package, designed for modeling light curves, synthetic spectra, and Doppler tomograms of binary star systems, is actively developing as another important area of work.

In addition, the supercomputer has become an indispensable tool for automatic processing of large amounts of astronomical data, time series analysis and parallel processing of data from international observatories. The possibility of mass statistical verification of models is of particular importance, since researchers can calculate a series of models based on various parameters, maximizing the accuracy of physical interpretation. Performing such complex iterative calculations on ordinary computers is almost impossible.

The use of such a supercomputer infrastructure has brought the efficiency of scientific work to a qualitatively new level. According to the research group, the use of modern HPC (high-performance computing) technologies has increased the productivity of research and the pace of international scientific publications by about three times compared to the originally planned figures. Thanks to high-performance computing, Kazakhstani scientists study processes occurring hundreds and thousands of light-years from Earth and make a significant contribution to the development of modern astrophysics.

Press-service of 91��ý Kazakh National University