Information on Abstract Categories

Sun, Solar System, Exoplanets, and Astrobiology 
Sun, Its magnetism and variability, diagnostics, dynamics, plasma and eruptive processes, Impact of Sun on the Earth and other bodies located within the heliosphere, Planetary Systems (including Planets, dwarf planets, asteroids, comets, meteoroids etc.), Protoplanetary Disks, Solar & Extrasolar planets (atmospheres, surfaces and interiors), Planet formation & dynamical evolution, Planet-star and planet-disk interaction, Planet detections, demographics & characterizations, Habitability and origin of life, Astrobiology, Laboratory studies in planetary sciences.

Stars, Interstellar Medium, and Astrochemistry in Milky Way 
Stars and stellar physics, stellar variability, stellar formation, structure, and evolution, the techniques used to measure and classify stars such as spectroscopy, radial velocities and photometry, production of stellar predictions (modeling), Physics and chemistry of different components of the Interstellar Medium (ISM) - ionized, neutral, molecular, formation and evolution of atoms, molecules and dust during all phases of star formation and death, stellar populations and dynamics in Milky Way, Laboratory techniques of astrochemical environments.

High Energy Phenomena, Fundamental Physics and Astronomy 
“Multi-messenger astronomy" (cosmic rays, neutrinos, gravitational waves, etc.), and non-thermal phenomena emitting radiation from the radio to TeV gamma-rays, plasma astrophysics, magnetohydrodynamics, shocks, particle acceleration, photoionization, bursts, extreme gravity, strong magnetic fields, etc.

Positions and motions of celestial objects in space and time, dynamical behavior of celestial bodies, physical laws using the methods of astrometry and celestial mechanics, data and ephemerides of solar system bodies.

Galaxies and Cosmology 
Extragalactic physics, galaxy sub-structures, star formation and stellar populations in galaxies, Circumgalactic and intergalactic medium, Populations of galaxies, Formation and evolution of galaxies, AGN, starburst galaxies, The early Universe, cosmological models, Baryonic and non-baryonic matter, dark matter and dark energy, origin of gravitational waves, Cosmic Microwave Background, galaxy clusters and groups, Cosmic web.

Facilities, Technologies and Data science 
Design, development, deployment, and operation of ground- and space-based hardware and software tools and systems, High performance computing and information technology, for Astronomical advancement; development and protection of critical ground-based sites and electromagnetic bands for current and future facilities.

Education, Outreach and Heritage 
Astronomy education at various levels, astronomy education research, astronomy outreach communication to public through a wide range of media and formats, legacy of astronomical artefacts and structures, astronomical attributes of mankind's cultural history.