The list of national projects SAS

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Institute: Astronomical Institute

Photometric and spectroscopic study of exoplanetary candidates
Fotometrický a spektroskopický výskum kandidátov na exoplanéty
Program: Inter-academic agreement
Project leader: Mgr. Hambálek Ľubomír PhD.
Annotation:This project deals with the detection and following characterization of exoplanetary candidates found by missions Kepler, K2, TESS, and projects Dwarf and YETI. The confirmation of discovery of an exoplanet needs long-term photometric and spectroscopic monitoring of the parent system. The analysis consists of measuring the changes in radial velocities (confirmation of candidates) and a subsequent analysis of the system (orbital parameters, minimal mass of the exoplanet); and a multi-color photometry (stellar and exoplanetary physical parameters).
Duration: 1.1.2018 - 31.12.2020

Physical processes in cataclysmic binaries
Fyzikálne procesy v kataklizmatických dvojhviezdach
Program: Inter-academic agreement
Project leader: RNDr. Chochol Drahomír DrSc.
Annotation:The project is a continuation of the study of explosions in cataclysmis binaries (CBs), initiated in a previous common project. Based on obtained observations, we continue to study CBs with emphasize to classical and dwarf novae. The most important parameter is the orbital period, which determines the mutual distance of the components and the mode of the mass transfer in the binary. The main goal of the project is to determine the absolute parameters of the selected CBs: masses, radii and luminosities of the components and the study of the physical mechanism responsible for the outbursts of classical and dwarf novae. While the outbursts of classical novae are caused by ignition of thermonuclear fusion of the accreted material on the surface of the white dwarf, outbursts in the accretion disks of dwarf novae provide valuable information on the mechanisms of accretion and tidal instability. To reach the goals of the project, we will use multicolour photometric and multifrequency spectroscopic observations . The photometric and spectroscopic observations of CBs will be taken by telescopes of the Main Astronomical Observatory in Kiev and Terskol and observatories of the Astronomical Institute of the Slovak Academy of Sciences in Stará Lesná and Skalnaté Pleso.
Duration: 6.4.2017 - 31.12.2019

hysical properties of cometary dust from photometric, spectral, and polarimetric observations
Fyzikálne vlastnosti kometárneho prachu z fotometrických, spektrálnych a polarimetrických pozorovaní
Program: Inter-academic agreement
Project leader: Mgr. Ivanova Viktorovna Oleksandra PhD.
Annotation:Polarimetric data will be used to estimate the degree of linear polarization of scattered radiation of selected comets and to obtain the phase-angle curves of polarization. However, with few exceptions, it is practically impossible to receive the phase dependence of polarization of comet in a wide range of phase angles. In this case, a composite phase-angle dependence of polarization based on observations of different comets is used. This approach enables obtaining the average polarization parameters for different groups of comets depending on their dynamic characteristics as well as to separate the comets with unique individual characteristics of polarized light. For our research and analysis, not only new observations but also data from the Database of comet polarimetry (DBCP-2) will be used.
Duration: 1.1.2017 - 31.12.2019

Searching for giant exoplanets around white dwarfs
Hľadanie obrích exoplanét okolo bielych trpaslíkov
Program: Inter-academic agreement
Project leader: RNDr. Garai Zoltán PhD.
Annotation:The project is aimed at search for extrasolar planets orbiting white dwarfs based on the transit method. If such a star has a transiting exoplanet, it is possible to detect significant brightness decreasing of the central star during the transit. Within the project we are going to collect and analyze own photometric data, obtained at different observatories of AI SAS and MAO NASU. In the case of detection will such a planet analyzed in details.
Duration: 6.4.2017 - 31.12.2019

Integrated Quantum Information at the Nanoscale
Integrovaná kvantová informácia na nanoškálach
Program: Bilateral - other
Project leader: RNDr. Saniga Metod DrSc.
Annotation:The project focuses on quantum entanglement, quantum control (quantum filtering and feedback control, open-loop control, quantum information and optical and related applications) and integrated systems. The objective of the project is to develop a coherent ambitious long term program on quantum information based on the know-how of the regional researchers.
Duration: 1.3.2017 - 30.9.2020

Finite geometries shaping quantum information
Konečné geometrie stelesňujúce kvantovú informáciu
Program: Bilateral - other
Project leader: RNDr. Saniga Metod DrSc.
Annotation:The past decade has witnessed an increasing role of finite geometry in quantum information theory. We mention, in particular, ordinary and Hjelmslev projective spaces (MUBs, quantum coding), projective lines over finite rings (single-qudit Pauli groups), finite symplectic and orthogonal polar spaces (multi-qubit Pauli groups), finite generalized polygons (magic configurations of observables, observable proofs of the Kochen-Specker theorem, and the so-called black-hole-qubit correspondence) and dessins d'enfants (quantum contextuality). The aim of the project is two-fold. On the one side, to have a fresh look at some of the above-mentioned concepts, like projective ring lines featuring non-unimodular points, specific extensions of polar spaces with lines of size three, or geometries relevant for quantum coding. On the other side, to pinpoint other finite geometries that can be vital for the field, like Veldkamp spaces featuring a “point-within-a-point” property, entanglement measures viewed as point-line incidence structures, tilde geometries and/or point-line incidence structures containing snarks. One of the main outcomes of the project should be a deep conceptual insight into the finite-geometric nature of both quantum information and the black-hole–qubit correspondence.
Duration: 1.1.2018 - 31.12.2019

Magnetoacoustic waves and dynamics of selected magnetic/plasma structures observed in solar active regions
Magnetoakustické vlny a dynamika vybraných magnetických/plazmových štruktúr pozorovaných v slnečných aktívnych oblastiach
Program: Inter-academic agreement
Project leader: RNDr. Rybák Ján CSc.
Annotation:The project is aimed at studying the characteristic physical parameters and interconnections among the selected magnetic (plasma) structures that occur in active regions of the solar atmosphere. Physical parameters of a 'drivers' triggering the explosive events, penumbral activity, turbulent plasma regions, relations between the observed structures and chromospheric/coronal heating, the flare generation and associated high-energy mass outflows will be studied together with the impulsive generated magnetoacoustic wave trains and their waveguides. The multi-wavelengths data with high spatial and temporal resolution acquired by ground-based (e.g., Ondřejov radiospectrographs, GREGOR) as well as space-born (e.g., SDO/AIA/HMI, IRIS, STEREO/SECHHI) be used. The project results will be published in international peer-reviewed journals and presented at international conferences.
Duration: 1.1.2018 - 31.12.2020

Modelling of solar prominence fine structures using simultaneous SUMER and IRIS UV spectroscopy of hydrogen and magnesium lines
Modelovanie prenosu žiarenia v jemnej štruktúre slnečných protuberancií s využitím simultánnej spektroskopie UV čiar vodíka a horčíka získanej kozmickými spektrografmi SUMER a IRIS
Program: Inter-academic agreement
Project leader: Mgr. Schwartz Pavol PhD.
Annotation:Solar prominences are cloud-like structures formed by cool and dense plasma surrounded by hot and rarefied corona. They remain stable for extended periods of time, but may become unstable and erupt violently forming Coronal Mass Ejections (CMEs). CMEs eject large amounts of plasma into the interplanetary space. This ionized, high-velocity matter may hit the Earth and cause wide-scale disruptions to the satellites, communication networks and power grids. Therefore, better understanding of prominences, composition of their plasma, and configuration of their magnetic field is one of the key topics of solar physics today. This project aims to advance the curent 2D radiative transfer modelling of the prominence fine-structures by extending its recent version for hydrogen also to ionised magnesium. Such technique will for the first time allow us to analyze unique simultaneous UV spectral observations in both hydrogen and magnesium lines. These observatios were obtained by cosmic spectrographs SUMER/SoHO and IRIS.
Duration: 1.1.2018 - 31.12.2020

Preparatory Phase for the European Solar Telescope.
Prípravná fáza pre Európsky slnečný ďalekohľad.
Program: Horizon 2020
Project leader: Mgr. Gömöry Peter PhD.
Annotation:The European Solar Telescope (EST) will be a revolutionary Research Infrastructure that will play a major role in answering key questions in modern Solar Physics. This 4-meter class solar telescope, to be located in the Canary Islands, will provide solar physicists with the most advanced state-of-the-art observing tools to transform our understanding of the complex phenomena that drive the solar magnetic activity. The principal objective of the present Preparatory Phase is to provide both the EST international consortium and the funding agencies with a detailed plan regarding the implementation of EST. The specific objectives of the proposed preparatory phase are: 1) to explore possible legal frameworks and related governance schemes that can be used by agencies to jointly establish, construct and operate EST as a new research infrastructure, with the implementation of an intermediate temporary organisational structure, as a previous step for future phases of the project; 2) to explore funding schemes and funding sources for EST, including a proposal of financial models to make possible the combination of direct financial and in-kind contributions towards the construction and operation of EST; 3) to compare the two possible sites for EST in the Canary Islands Astronomical Observatories and prepare final site agreements; 4) to engage funding agencies and policy makers for a long-term commitment which guarantees the construction and operation phases of the Telescope; 5) to involve industry in the design of EST key elements to the required level of definition and validation for their final production; 6) to enhance and intensify outreach activities and strategic links with national agencies and the user communities of EST.
Duration: 1.4.2017 - 31.3.2021

Coupling effects in solar atmosphere structures – high resolution approach
Skúmanie vzájomných vzťahov štruktúr v slnečnej atmosfére - veľké priestorové rozlíšenie
Program: Bilateral - other
Project leader: RNDr. Kučera Aleš CSc.
Annotation:Sun and solar activity affect the environment of our Earth. At present, there is an increasingly urgent question of predicting solar activity (eruption, coronal mass ejection, solar wind) from the point of view of the impact of these phenomena on the technologies of our civilization. Their failure due to solar activity can have far-reaching consequences (GPS failures in aircraft navigation, energetic systems crashes, losses of expensive satellites, hazards for astronauts). At present, we have new instruments that allow us to diagnose magnetic fields in the solar atmosphere. This gives us possibility to make more reliable forecasts of solar activity. The aim of this project is to determine the physical parameters in selected structures along the entire height of the solar atmosphere up to the solar corona, to understand better the process of propagation of energy to higher layers of the solar atmosphere. There will be used spectropolarimetric and spectroscopic observations obtained with large spatial resolution on large solar telescopes on the Canary Islands, as well as observations made with instruments at Lomnický štít observatory - Chromospheric Solar Detector (SCD) and Coronal Multi-Channel Polarimeter (CoMp-S). They will be combined with data obtain by satellites. There will be used for interpretation modern computer programs, inverse code SIR (Stokes Inversion based on Response functions) for the interpretation of data from the solar photosphere and code HAZEL (Hanle and Zeeman Light) for chromosphere structure, or newly developed 2.5D magnetohydrodynamical code for the simulation of solar atmosphere. The proposed interpretation tools as well as the quality of the observational data to be used, represent the highest standard in solar physics.
Duration: 1.1.2018 - 31.12.2019

Per aspera ad astra simul (Throught difficulties to the stars together)
Spoločne cez prekážky ku hviezdam
Program: Multilateral - other
Project leader: RNDr. Budaj Ján CSc.
Duration: 1.9.2017 - 31.8.2020

The total number of projects: 11