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The list of international projects SAS

Astronomical Institute

2D Radiative Transfer Modelling of Prominence Observed by the SST

2D modelovanie prenosu žiarenia v protuberancii pozorovanej teleskopom SST

Duration: 1.1.2025 - 31.12.2026
Program: Open Mobility
Project leader: Mgr. Koza Július PhD.
Annotation:This project aims to enhance the understanding of solar prominences by combining unique high-resolution multi-line observations from the Swedish 1-m Solar Telescope (SST) with cutting-edge 2D non-LTE radiative transfer modelling. The international team will collaboratively calibrate and analyse the prominence data, ascertain the full velocity vector, and retrieve key plasma parameters using innovative modelling techniques. The project places a strong emphasis on training junior researchers through practical work with SST observations, advanced data analysis methods, and theoretical modelling under the guidance of leading experts. The expected outcomes include strengthening long-term collaboration between the Astronomical Institute of the Slovak Academy of Sciences and the University of Wrocław.

Federation of Solar Data

Federation of Solar Data

Duration: 1.10.2024 - 30.9.2026
Program: Horizon Europe
Project leader: Msc. Wiśniewska Aneta Barbara PhD.
Annotation:This project aims to enhance FAIR (Findability, Accessibility, Interoperability, and Reusability) principles for archiving, curation and sharing of solar data through the SOLARNET Virtual Observatory (SVO), other astrophysical databases, and the ESCAPE-ESAP science platform. This is done by applying of standards established by the SOLARNET project and the International Virtual Observatory Alliance (IVOA) to existing data as well as to data-reduction pipelines of the future solar observations. This work will not only improve seamless access to data of already existing instruments through Virtual-Observatory (VO) tools, but will also support the future operations of the European Solar Telescope (EST), European largest solar telescope still in preparation.

Search for early cometary activity and its evolution based on archival data

Hľadanie ranej kometárnej aktivity a jej vývoj na základe archívnych dát

Duration: 1.7.2025 - 30.6.2027
Program: Bilateral - other
Project leader: Mgr. Husárik Marek PhD.
Annotation:Comets, among the oldest bodies in the Solar System, provide important information about the formation and evolution of the Solar System as well as the origin of life on Earth. As they approach the Sun, comets become active, releasing gas and dust that form their specific comae and tails. Although cometary activity is well studied at smaller distances to the Sun, its onset and behaviour at larger distances remain poorly understood. The goal is to search for, detect, and study the onset of cometary activity at large heliocentric distances and examine its evolution as a comet gets closer to the Sun. The study will use archival data from different observing programmes such as Pan-STARRS, ATLAS and others. The project will focus on studying the dust component of comets, their morphological features, and the dynamics of their interaction with solar radiation. By monitoring activity at different heliocentric distances, assessing dust formation, and observing colour changes, the study will enhance our understanding of comet composition and the processes driving early activity. The project is highly relevant for future missions such as Comet Interceptor and will contribute to the development of accurate models of cometary activity.

Characterization of selected exoplanet systems with the CHEOPS space observatory

Charakterizácia vybraných exoplanetárnych sústav pomocou vesmírneho observatória CHEOPS

Duration: 1.1.2025 - 31.12.2026
Program: Mobility
Project leader: RNDr. Garai Zoltán PhD.
Annotation:We wish to exploit the existing Hungarian participation in the CHEOPS space observatory and to build a new cooperation between Hungarian and Slovakian astronomers. We aim to use the data obtained with this telescope to characterize selected exoplanet systems, namely, AU Mic, TOI-3540, and TOI-2193. AU Mic is a unique young star with two transiting warm Neptunes, and the remaining two systems are also interesting because they are grazing transiting exoplanets, worth investigating in the near future. To fulfill the aims of the project, the Hungarian side can offer high-quality photometric data of the exoplanets obtained by CHEOPS and a lot of experience with data processing and analysis, while the Slovak side can offer spectroscopic instrumental support and experiences with specific data analysis.

Comprehensive studies of long-period comets in the framework of ground-based support for the future space mission «Comet Interceptor»

Komplexné štúdium komét s dlhou periódou v rámci pozemnej podpory budúcej vesmírnej misie „Comet Interceptor“

Duration: 1.1.2025 - 31.12.2026
Program: Bilateral - other
Project leader: Mgr. Ivanova Oleksandra PhD.
Annotation:The main goal of the proposed project is to study the physical properties of long-priod comets at large heliocentric distances for the analysis of the development of physical activity with increase in the temperature of the surface of the cometary nucleus. The evolution of pre-perihelion activity of long-priod comets and its decrease after the perihelion passage at large distances from the Sun can be an indirect indicator for the verification of the physical models of a cometary nucleus. The spectral, polarimetric, and photometric observations, which we plan to perform during the project, will be used as complementary data for the complex study of physical properties of the cometary dust at different distances from the Sun.

Hunting for the nature of the stellar brightness variability

Pátranie po príčinách zmien jasnosti hviezd

Duration: 1.1.2025 - 31.12.2026
Program: Mobility
Project leader: Mgr. Vaňko Martin PhD.
Annotation:Stars, stellar systems and exoplanets are some of the main research fields at both CAS and SAS institutions. Research of stars and exoplanets have a lot in common including the usage of photometric and spectroscopic methods. In real life, different physical phenomena can produce similar brightness variations, and exoplanetary candidates can be mixed up with binary stars. To reveal the true nature of the light variations, spectroscopic observations are needed. Over the years, we have developed the infrastructure and advanced tools for reducing and analyzing spectra and modelling stellar variations including eclipsing binary stars. We aim to build upon these stepping stones and apply them to observed objects. Both institutions have access to powerful telescopes (with diameters between 0.6-m and 2-m) and instruments (photometric cameras, echelle spectrographs) that are suitable for the observations of bright targets.

The Birth of Solar Systems

Zrod slnečných sústav

Duration: 26.9.2023 - 25.9.2027
Program: COST
Project leader: Mgr. Kaňuchová Zuzana PhD.
Annotation:The main aim and objective of the Action is to build an interdisciplinary network, with expertise in experimental studies, observations, and models, to advance our understanding of planet formation, by determining the computational and data needs of the community, and how to best exploit current and future observations.

The total number of projects: 7