New perspectives onto the Universe in the era of multimessenger astronomy

• Samaya Nissanke (German Centre for Astrophysics; Deutsches Elektronen-Synchrotron; University of Potsdam, Germany)

Dark matter and the rotation curves of spiral galaxies: a study of UGCA 442, NGC 3198 and NGC 2841

• Mohammad Ayaz (Maulana Azad National Urdu University, India)

Multiple Einstein rings and complex image formation in toroidal gravitational lenses

• Denys Ilchenko (V. N. Karazin Kharkiv National University, Ukraine)

The network analysis of the cosmic web as a tool to constrain cosmology and cosmic magnetism

• Anton Rudakovskyi (University of Bologna, Italy)

Magnification bias in CMB lensing tomography

• Nicola Principi Cavaterra (National Centre for Nuclear Research, Poland)

Renormalization of the gauge-field energy density during inflation in the kinetic coupling model

• Andrii Naidenko (Taras Shevchenko National University of Kyiv, Ukraine)

Inflation in a power-law modified gravity theories

• Bohdan Hovorukha (Taras Shevchenko National University of Kyiv, Ukraine)

Looking for Hubble constant with CORN - chronometers of relic nature

• Krzysztof Lisiecki (National Centre for Nuclear Research, Poland)

Investigation of beckreaction effect in inhomogenius cosmology

• Mykyta Bilodid (Taras Shevchenko National University of Kyiv, Ukraine)

Einstein equations for polar perturbations of relativistic spherically-symmetric configurations with scalar field

• Bohdan Vakhnyuk (Taras Shevchenko National University of Kyiv, Ukraine)

On causal structure of spacetime singularities and their observable signatures

• Jahnvi Mistry (Charotar University of Science and Technology, Anand, India)

Probing EMRs with the Schwarzchild-AdS black holes with a cloud of strings and quintessence for periodic orbits and gravitational inspirals

• Bhaskar Singh Rawat (Hemwati Nandan Bahuguna Garhwal University, Srinagar, India)

The dynamical characterization of spinning particles around a short-hair black hole

• Lalita Jangir (Hemvati Nandan Bahuguna Garhwal University, Srinagar, India)

Why the Universe is not random: void dynamics in the large scale Universe

• Atufa Vora (Devi Ahilya Vishwavidyalaya, Indore, India)

Migration and stalling dynamics of blanets in Kerr spacetimes

• Shreesham Pandey (Kirori Mal College, University of Delhi, India)

Tidal disruption events around Schwarzschild and Kerr black holes: a complete theoretical and mathematical treatment from fundamentals to frontiers

• Shreesham Pandey (Kirori Mal College, University of Delhi, India)

Frontiers in atmospheric science

• Andrew Klekociuk (Adelaide University, Australia)

The analysis of vortex strength and circulation parameter in Antarctica in 1979-2025

• Diana Zazubyk (Taras Shevchenko National University of Kyiv, Ukraine)

Distinguishing types of total ozone annual cycle: global analysis

• Diana Zazubyk (Taras Shevchenko National University of Kyiv, Ukraine)

Latitudinal distribution and climate classification of precipitable water vapor based on AERONET data

• Oleksandra Bilous (Taras Shevchenko National University of Kyiv, Ukraine)

Impact of aerosols on the reverse electrode effect at the Earth’s surface

• Xuhui Gao (Jilin University, Changchun, China)

Transforming empirical geophysical models into neural network surrogates

• Volodymyr Kashyn (Main Astronomical Observatory of NASU, Ukraine)

Ohmic energization of ions during magnetic reconnection in Earth’s magnetosphere

• Bohdan Petrenko (Space Research Institute of the NASU, Ukraine)

Comparing plasma and magnetic field measurements from ACE, WIND and ADITYA-L1: a case study

• Achsah Cibi (National Centre for Polar and Ocean Research, India)

Modeling of physical processes in the formation of lower hybrid cavities in the Earth’s ionosphere

• Oleksandr Mylka (V. N. Karazin Kharkiv National University, Ukraine)

Global ionospheric response to the May 2024 G5 geomagnetic superstorm: a multi-parameter analysis of TEC variability during solar cycle 25

• Ege Eraydin (Yeditepe University, Istanbul, Türkiye)

Multi-fluid solar chromosphere

• Elena Khomenko (Instituto de Astrofisica de Canarias, Spain)

Reconstruction of annual solar irradiance over three millennia

• Duresa Temaj (Max Planck Institute for Solar System Research, Göttingen, Germany)

Relationship between Ca ii K contrast and solar surface magnetic field near the solar limb

• Ajay Kumar Yadav (Max Planck Institute for Solar System Research, Göttingen, Germany)

Tracing closed coronal magnetic loops with J- and U-type solar radio bursts

• Jaskirat Singh (University of Potsdam, Germany)

Diagnostics of CME core and coronal plasma parameters using decameter radio spikes

• Uliana Pavlichenko (Taras Shevchenko National University of Kyiv, Ukraine)

High-frequency solar oscillations and their excitation sources

• Vadym Maiurov (Taras Shevchenko National University of Kyiv, Ukraine)

Forbush decreases and solar activity: a statistical study based on neutron monitor data

• Barbara Góra-Gálik (Eötvös Loránd University, Budapest, Hungary)

Source to eruption analysis of an X class flare erupted on 4 Jan 2025

• Akash Shirke (University of Petroleum and Energy Studies, Dehradun, India)

Influence of solar wind parameters and coronal mass ejections on cosmic ray intensity during solar cycle 24

• Ramdas Mars (Raja Shankar Shah University, Chhindwara, India)

The influence of geomagnetic modulation on ground-based registration of high-energy solar particles

• Oleksandr Mylka (Taras Shevchenko National University of Kyiv, Ukraine)

Registration of unusual Type IIIb like bursts with the restored GURT antenna array

• Uliana Pavlichenko (Taras Shevchenko National University of Kyiv, Ukraine)

Study of particle signatures and CME-CME interaction during the 11-12th Nov 2025 event

• Harsh Bhati (Netaji Subhas University of Technology, Delhi, India)

The Ever-Changing Sky

• Milena Ratajczak (Astronomical Observatory, University of Warsaw, Poland)

Evolutionary and pulsational modeling of RR Lyrae stars

• Balázs Zoltán Kertész (Eötvös Loránd University, Budapest, Hungary)

Revealing the variability of Antares: pulsation modes and a long secondary period

• Klára Lelkes (Eötvös Loránd University, Budapest, Hungary)

Determining the masses of BL Her variable stars through direct light curve modelling

• Alexandra Grósz (Konkoly Observatory, Budapest, Hungary)

Local standard of rest estimation using open clusters in solar neighbourhood

• Seval Taşdemir (Istanbul University, Türkiye)

Asteroseismology of RGB and AGB stars in 47 Tucanae using TESS data

• Zsóka Horváth (Eötvös Loránd University, Budapest, Hungary)

New variable stars found in TESS Sectors 77, 79, and 86

• Mariia Yatsiuk (Clear Skies Foundation, Kyiv, Ukraine)

Period analysis of three eclipsing binary stars using TESS data

• Inna Semyriako (Clear Skies Foundation, Kyiv, Ukraine)

Study of properties of novalike variables SW Sextantis type based on photometric observations from the TESS mission

• Mateusz Motyliński (Nicolaus Copernicus University Toruń, Poland)

Photometric study of AM CVn systems using BHTOM

• Barbara Joachimczyk (Nicolaus Copernicus University Toruń, Poland)

Hot spot manifestation in eclipsing dwarf nova Z Chamaeleontis

• Bartosz Kirpluk (Nicolaus Copernicus University in Toruń, Poland)

A dynamical portrait of the low-α disk in kinematic and action space using LAMOST subgiant stars

• Furkan Akbaba (Istanbul University, Türkiye)

JCMT surveying filaments in nearby gas clouds (JCMT-SURFING): unveiling the velocitycoherent filaments and dense cores in the Serpens South Molecular Cloud

• Satyajeet Moharana (Korea Astronomy and Space Science Institute, Daejeon, South Korea)

ATOMS-QUARKS survey: inflow and infall in massive protocluster G318.049+00.086: evidence of competitive accretion

• Shivani Gupta (Indian Institute of Astrophysics, Bengaluru, India)

Optical and infrared view of Gum 31: a Gaia-Spitzer photometric approach

• A. A. Renjithmon (Indian Institute of Astrophysics, Bengaluru, India)

Influence of non-ideal physical processes on the structure of interstellar wind bubbles: a numerical study with the PLUTO code

• Andrii Pozdieiev (Ivan Franko National University of Lviv, Ukraine)

Inferring superbubble formation from star cluster dynamics in NGC 628

• Kalju Jake Nekvasil (University of Tartu, Estonia)

Theory of magneto-inertial modes on a rotating sphere: a simplified model

• Muneeb Mushtaq (Max Planck Institute for Solar System Research, Göttingen, Germany)

Shape, orientation of velocity ellipsoids and Galactic vertex using giants and subgiants from Gaia DR3

• Artem Dmytrenko (Main Astronomical Observatory of NASU, Ukraine)

Adaptive PINNs for molecular cloud fragmentation

• Tirthankar De (Indian Institute of Technology, Roorkee, India)

Stepwise shifts in Kozai cycles of equal mass hierarchical triples

• Wei Hao (Ludwig Maximilian University of Munich, Germany)

Estimating flare temperatures from multicolor photometry

• Dorottya Elekes (Eötvös Loránd University, Budapest, Hungary)

Optical infrared excess in cataclysmic variables across the period gap

• Remziye Canbay (Akdeniz University, Antalya, Türkiye)

Photometric observations of the cataclysmic variable Gaia23bcv during the 2025 Superoutburst

• Dariia Rusanova (Taras Shevchenko National University of Kyiv, Ukraine)

Using BHTom facility for cataclysmic variables detection

• Diana Zazubyk (Taras Shevchenko National University of Kyiv, Ukraine)

Photometric and spectral variability of the Be/X-ray binaries 1H1936+541 and 1H2202+501

• Mykhailo Solomakha (Taras Shevchenko National University of Kyiv, Ukraine)

HD 155358: a metal-poor star’s quest for a home in the Milky Way

• Deniz Cennet Çınar (Istanbul University, Türkiye)

Revisiting basel open clusters with Gaia DR3

• Talar Yontan (Istanbul University, Türkiye)

Detailed chemical analysis of an evolved binary star with planets using Gemini/MAROON-X spectra

• Camila Zuloaga (Astronomical Observatory of Córdoba, Argentina)

Chemical and dynamical analysis of Milky Way bulge globular clusters - Part 1

• Mihan Çalışkan (Akdeniz University, Antalya, Türkiye)

Chemical and dynamical clues to the origin of Milky Way bulge globular clusters - Part 2

• Ceyda Maltaş (Akdeniz University, Antalya, Türkiye)

Chemical and dynamical analysis of Milky Way bulge globular clusters - Part 3

• Sedat Kamaç (Akdeniz University, Antalya, Türkiye)

The mechnanisms controlling the fertility and corpulence of dwarf galaxies

• Gary Mamon (Institut d’Astrophysique de Paris, France)

Decoding superbubble feedback

• Aikaterini Niovi Triantafyllaki (University of Tartu, Estonia)

Milky Way analogs and Milky Way near twins: selection criteria

• Oleksandr Kukhar (Main Astronomical Observatory of NASU, Ukraine)

Milky Way galaxy-analogs and isolated galaxies with bars: environmental density in the Local Volume

• Olena Kompaniiets (Main Astronomical Observatory of NASU, Ukraine)

NGC 3521 as the Milky Way near twin: spectral energy distribution from UV to radio decameter ranges

• Olena Pastoven (Taras Shevchenko National University of Kyiv, Ukraine)

SED modelling of dwarf galaxies during the reionization epoch based on IllustrisTNG50-1 simulations

• Serhii Chudyk (Ivan Franko National University of Lviv, Ukraine)

Testing the reliability of popular H ii region oxygen-abundance calibrations in dwarf galaxies using multicomponent photoionization modelling

• Denys Shelestiuk (Ivan Franko National University of Lviv, Ukraine)

Building from a break-up: non-classical dwarf galaxies at the extremities and tidal bridge in Guitar galaxy Arp 105

• Jyoti Prakash (Inter-University Centre for Astronomy and Astrophysics, Pune, India)

Clustering analysis of low surface brightness galaxies in the Dark Energy Survey

• Henry Willems (National Centre for Nuclear Research, Poland)

Deep learning discovery of polar ring galaxies in SDSS using synthetic training data

• Oleksandr Hetmantsev (Main Astronomical Observatory of NASU, Ukraine)

Dust attenuation: a crucial component of future LSST data analysis

• Patryk Matera (National Centre for Nuclear Research, Poland)

The optical-infrared luminosity relation for quasars: the role of contaminations

• Mateusz Rałowski (University of Florence, Italy)

Optical-to-mid-infrared reverberation in the isolated NLSy1 galaxy Mrk 493

• Inna Izviekova (Main Astronomical Observatory of the NASU, Ukraine)

Modeling of non-stationary accretion for Active Galactic Nuclei

• Artem Holovashchenko (V. N. Karazin Kharkiv National University, Ukraine)

Formation of a global m = 1 mode in a self-gravitating torus

• Serhii Skolota (Institute of Radio Astronomy of NASU, Kharkiv, Ukraine)

Automating RFI flagging using machine learning

• Mosima Masipa (University of the Western Cape, South Africa)

Transmission function of the intergalactic medium for distant sources

• Anguohao Yang (Jilin University, Changchun, China)

Extragalactic accelerators and gamma-ray astronomy

• Gernot Maier (Deutsches Elektronen-Synchrotron, Zeuthen, Germany)

Search for cosmic ray PeVatrons: gamma-ray emission from the magnetar SGR1900+14 region

• Anastasiia Sokareva (Taras Shevchenko National University of Kyiv, Ukraine)

Modeling the gamma-ray emission from the magnetar SGR 1900+14 sky region

• Vlad Nikitchenko (Taras Shevchenko National University of Kyiv, Ukraine)

Type Ia supernovae in the Coma cluster

• Ágoston Horti-Dávid (HUN-REN Research Centre, Budapest, Hungary)

Signatures of quark matter in neutron star systems: a multi-messenger approach

• Suhani Suhani (Hindu College, University of Delhi, India)

Database-accelerated photoionization modeling of H ii regions and planetary nebulae

• Oleksii Kovalchuk (Ivan Franko National University of Lviv, Ukraine)

Fast diffuse ionizing radiation transfer calculations with the DiffRay code

• Mykhailo Berikashvili (Ivan Franko National University of Lviv, Ukraine)

Morphological classification of galaxies using SDSS database images and machine learning algorithms

• Yuliia Syvak (Lviv Physics and Mathematics Lyceum, Ukraine)

Luminosity- and spectral index-dependent composite spectra for Lyα-forest studies in quasar spectra

• Daryna Provolovska (Taras Shevchenko National University of Kyiv, Ukraine)

Weighing the Abyss: estimating Black Hole masses through multi-component spectral fitting

• Heta Patel (Savitribai Phule Pune University, India)

Photometry and orbital analysis of the OJ 287 system

• Roksana Kazarova (Lyceum ‘Kebeta Online’, Ukraine)

Multiwavelength spectral and temporal analysis of VHE Blazar 1ES 1959+650: tracing emission mechanisms across flux states

• Anjum Peer (Islamic University of Science and Technology, Awantipora, India)

Probing the origin of X-ray flares in the low-hard state of GRS 1915+105 using AstroSat and NuSTAR

• Shahzada Akhter (Islamic University of Science and Technology, Awantipora, India)

Analysis and simulation of glitch phenomenon in pulsars J0835-4510 (Vela) and J1016-5857

• Maksym Smetanskyi (Lyceum ‘Naukova Zmina’, Kyiv, Ukraine)

Optical variability of blazars

• Varduhi Mkrtchyan (Byurakan Astrophysical Observatorym Armenia)

Advances in space and telescopic lunar studies: methods and results

• Vadym Kaydash (V. N. Karazin Kharkiv National University, Ukraine)

Automated observation system for artificial celestial object tracking

• Liubomyr Shpyrka (Ivan Franko National University of Lviv, Ukraine)

Rotational properties of the largest asteroid families

• Kateryna Solovian (V. N. Karazin Kharkiv National University, Ukraine)

Search for signatures of space weathering among families of asteroids of different taxonomic types

• Oleksandr Khromiuk (V. N. Karazin Kharkiv National University, Ukraine)

Photometric study of asteroids with unusually high albedo in primitive asteroid families

• Danylo Yerokhin (V. N. Karazin Kharkiv National University, Ukraine)

Photometric characterization of potentially hazardous asteroid 2025 FA22: rotation period, shape, and taxonomy

• Arushi Nath (Monitor My Planet, Canada)

Monte-Carlo model of comet C/2017 K2 (PANSTARRS)

• Arsenii Kasianchuk (Taras Shevchenko National University of Kyiv, Ukraine)

Comprehensive analysis of comet plasma tail disconnection events and their relation to sunspots and the magnetic field

• Kateryna Husarova (Gymnasium ‘Kyivska Rus’)

Monitoring of moving objects with an All-Sky Camera at the Observatory on Pip Ivan Mountain

• Iryna Kamin (Vasyl Stefanyk Caprathian National University, IvanoFrankivsk, Ukraine)

Origin of selected hot population objects in the Kuiper Belt

• Hanna Okhotko (Vasyl Stefanyk Carpathian National University, Ivano-Frankivsk, Ukraine)

Beyond planets: simulating exocomet transits in high-precision photometry

• Nóra Takács (HUN-REN Research Centre, Budapest, Hungary)

Detecting exocomet activity in β Pictoris with a statistical light-curve analysis

• Denys Karakuts (Main Astronomical Observatory of NASU, Ukraine)

Photoevaporation in 1D protoplanetary disk models

• Anna Császár (Eötvös Loránd University, Budapest, Hungary)

Linking metal pollution and Ca ii line asymmetry in white dwarfs through disc hydrodynamics

• Viktória Fröhlich (Eötvös Loránd University, Budapest, Hungary)

Photoevaporating exoplanets: how do stellar coronal abundances affect atmospheric escape?

• Martiño Balboa-Costa (Leibniz Institute for Astrophysics Potsdam,Germany)

Is the ‘Steam World’ scenario for GJ 9827 d consistent with planetary evolution models?

• Imre Kisvárdai (University of Groningen, Netherlands)

Bridging the gap: ground-based photometric follow-up of long-period exoplanets in the quest for exomoons

• Anastasiia Nahurna (Taras Shevchenko National University of Kyiv, Ukraine)

Spectral analysis and atmospheric retrieval of terrestrial exoplanets and mini-Neptunes using the TauREx 3 framework

• Mariia Lobodenko (Taras Shevchenko National University of Kyiv, Ukraine)

True spin-orbit obliquity distribution: Data-driven confirmation of no clustering of misaligned planets

• Alessandro Matteo Rossi (University of Padova, Italy)

Mean-motion resonances and stability in planetary and exoplanet systems

• Ruqiyah Aslam (Maulana Azad National Urdu University, Hyderabad, India)

Hands-on stellar and planetary astrophysics learning through PACS e-Lab

• Sofiia Lys (National Technical University of Ukraine ‘Igor Sikorsky Kyiv Polytechnic Institute’, Institute of Aerospace Technologies, Ukraine)

Comparative analysis of the Solar system and extrasolar planetary systems

• Ningthoujam Dipak Singh (Kristu Jayanti University, Bengaluru, India)

Comparison of transiting exoplanets radii estimated by using transit depth and time intervals methods

• Vladyslav Andrukhiv (Richelieu Science Lyceum, Odesa, Ukraine)

Gravity darkening in exoplanetary transits

• Rishabh Jain (University College London, UK)

Detection of water in exoplanet atmospheres and the study of the dependence of the intensity of its spectral features on the physical parameters and types of exoplanets

• Polina Khadzhynova (Technical Lyceum of Dnipro District, Ukraine)