M. Stęślicki
A5036650470- Solar and Space Plasma Dynamics
- Stellar, planetary, and galactic studies
- Astronomy and Astrophysical Research
- Astro and Planetary Science
- Astrophysics and Star Formation Studies
- Ionosphere and magnetosphere dynamics
- Astronomical Observations and Instrumentation
- Spacecraft and Cryogenic Technologies
- Gamma-ray bursts and supernovae
- Calibration and Measurement Techniques
- Solar Radiation and Photovoltaics
- Spacecraft Design and Technology
- Adaptive optics and wavefront sensing
- Particle Detector Development and Performance
- Geophysics and Gravity Measurements
- Atmospheric Ozone and Climate
- Advanced Semiconductor Detectors and Materials
- Geomagnetism and Paleomagnetism Studies
- CCD and CMOS Imaging Sensors
- Planetary Science and Exploration
- Earthquake Detection and Analysis
- Statistical and numerical algorithms
- Radiation Therapy and Dosimetry
- Dark Matter and Cosmic Phenomena
- Astrophysics and Cosmic Phenomena
Polish Academy of Sciences
2014-2024
Centrum Badań Kosmicznych
2014-2024
Western Kentucky University
2023
Urban College of Boston
2023
Goddard Space Flight Center
2023
Laboratory for Atmospheric and Space Physics
2023
University of Glasgow
2023
University of Wrocław
2008-2019
High Altitude Observatory
2012
Center for Astrophysics Harvard & Smithsonian
2009
Aims. The Spectrometer Telescope for Imaging X-rays (STIX) on Solar Orbiter is a hard X-ray imaging spectrometer, which covers the energy range from 4 to 150 keV. STIX observes bremsstrahlung emissions solar flares and therefore provides diagnostics of hottest (⪆10 MK) flare plasma while quantifying location, spectrum, content flare-accelerated nonthermal electrons. Methods. To accomplish this, applies an indirect bigrid Fourier technique using set tungsten grids (at pitches 0.038 1 mm) in...
The Kepler space mission provided near-continuous and high-precision photometry of about 207,000 stars, which can be used for asteroseismology. However, successful seismic modelling it is equally important to have accurate stellar physical parameters. Therefore, supplementary ground-based data are needed. We report the results analysis high-resolution spectroscopic A- F-type stars from field, were obtained with HERMES spectrograph on Mercator telescope. determined spectral types, atmospheric...
Detached eclipsing binaries (dEBs) are ideal targets for accurate measurement of masses and radii ther component stars. If at least one the stars has evolved off main sequence (MS), give a strict constraint on age Several dEBs containing bright K giant fainter MS star have been discovered by Kepler satellite. The mass radius red (RG) can also be derived from its asteroseismic signal. parameters determined in this way depend stellar models may contain systematic errors. It is important to...
We present time series radial velocity, and photometric observations of a solar-type double-lined eclipsing binary star (V 12) in the old open cluster NGC 188. use these data to determine spectroscopic orbit elements for V 12. From our analysis, we accurate masses (Mp = 1.103 ± 0.007 M☉, Ms 1.081 M☉) radii (Rp 1.424 0.019 R☉, Rs 1.373 R☉) primary (p) secondary (s) components. adopt reddening EB−V 0.087 188, derive component effective temperatures 5900 100 K 5875 K, respectively, stars. their...
Context. The Spectrometer/Telescope for Imaging X-rays (STIX) is the hard X-ray instrument onboard Solar Orbiter designed to observe solar flares over a broad range of flare sizes. Aims. We report first STIX observations microflares recorded during commissioning phase in order investigate performance at its detection limit. Methods. uses imaging spectroscopy between 4–150 keV diagnose hottest plasma and related nonthermal electrons. This result paper focuses on temporal spectral evolution...
CONTEXT: Recent progress in the seismic interpretation of field beta Cep stars has resulted improvements physics stellar structure and evolution models massive stars. Further asteroseismic constraints can be obtained from studying ensembles a young open cluster, which all have similar age, distance chemical composition. AIMS: To improve our comprehension stars, we studied cluster NGC 884 to discover new B-type pulsators, besides two known other variable METHODS: An extensive multi-site...
The numerous results obtained with asteroseismology thanks to space missions such as CoRoT and Kepler are providing a new insight on stellar evolution. After five years of observations, is going high-quality data. We present here the analysis double star HD169392 complemented by ground-based spectroscopic observations. This work aims at characterizing fundamental parameters two stars, their chemical composition, acoustic-mode global including individual frequencies, dynamics. have analysed...
Abstract The disparate nature of the thermal–nonthermal energy partition during flares, particularly weak is still an open issue. Following Neupert effect, quantifying relative yield X-ray emission in different bands can enable inferring underlying release mechanism. During 2021 September 20–25, Solar Orbiter mission—being closer to Sun (∼0.6 au) and having a moderate separation angle (<40°) from Sun–Earth line—offered unique opportunity analyze multiwavelength ∼200 (mostly weak) commonly...
The DIOGENESS X-ray crystal spectrometer on the CORONAS-F spacecraft operated only for a single month (25 August to 17 September) in 2001, but its short lifetime obtained one hundred and forty high-resolution spectra of eight solar flares with GOES importance ranging from C9 X5. instrument included four scanning flat crystals wavelength ranges covering regions Si xiii (6.65 Å), S xv (5.04 Ca xix (3.18 Å) lines associated dielectronic satellites. Two were oriented “dopplerometer” manner, i.e....
Lunar sulfides and oxides are a significant source of noble base metals will be vital for future human colonies' self-sustainability. Sulfide detection (pyrite troilite) applies to many technological fields use cases, example, as raw material (available in situ on the surface) new solar panel production methods. Ilmenite is primary iron titanium ore Moon can provide helium-3 nuclear fusion oxygen rocket fuel. The most important minerals have prominent absorption peaks narrow far-infrared...
Particle acceleration is a fundamental process arising in many astrophysical objects, including active galactic nuclei, black holes, neutron stars, gamma-ray bursts, accretion disks, solar and stellar coronae, planetary magnetospheres. Its ubiquity means energetic particles permeate the Universe influence conditions for emergence continuation of life. In our system, Sun most particle accelerator, its proximity makes it unique laboratory which to explore acceleration. However, despite...
Two observational campaigns were carried out during the eclipses of EE Cep in 2003 and 2008/9 to verify whether eclipsing body system is indeed a dark disk understand observed changes depth durations eclipses. Multicolour photometric data spectroscopic observations at both low high resolution collected. We numerically modelled variations brightness colour tested models with different structure. considered possibility precession. The complete set collected last three are made available...
Asteroseismology offers the possibility of probing stellar interiors and testing evolutionary seismic models. Precise photometry spectroscopy obtained during multi-site campaigns on young open clusters allows discovering rich samples pulsating stars using them in a simultaneous modelling called ensemble asteroseismology. The aim this study is to obtain age cluster NGC 6910 by means asteroseismology early-type members, derive their parameters, classify excited modes. We used time-series...
The paper presents a method for determining the Detector Response Matrix (DRM) using Monte Carlo simulations. For this purpose Geant4 package was used which enables simulations of interaction particles with matter. DRM has been calculated cadmium telluride sensor Caliste-SO detector, will be in Solar Orbiter/STIX instrument. Orbiter is M-class mission new ESA's program Cosmic Vision 2015-2025. It to launched July 2017. STIX provide imaging spectroscopy solar hard X-ray emissions from 4 keV...
A multisite photometric campaign for the β Cephei and eclipsing variable 16 Lacertae is reported. 749 h of high-quality differential photoelectric Strömgren, Johnson Geneva time series photometry were obtained with 10 telescopes during 185 nights. After removing pulsation contribution, an attempt was made to solve resulting eclipse light curve by means computer program ebop. Although a unique solution not obtained, range solutions could be constrained comparing computed positions secondary...
The Spectrometer Telescope for Imaging X-rays (STIX) is one of 10 instruments on-board Solar Orbiter mission the European Space Agency (ESA) scheduled to be launched in 2017. STIX aimed provide imaging spectroscopy solar thermal and non-thermal hard X-ray emissions from 4 keV 150 using a Fourier-imaging technique. instrument employs set tungsten grids front 32 pixelized CdTe detectors. These detectors are source data collected analyzed real time by Instrument Data Processing Unit (IDPU). In...
Abstract We present an innovative soft X-ray polarimeter and spectrometer SOLPEX. The instrument is to be mounted aboard the ISS within Russian science complex KORTES. measurements made by SOLPEX are expected of unprecedented quality in terms sensitivity detect soft-X-ray polarization solar emission emanating from active regions flares particular. Simultaneous degree other characteristics (eg. evolution spectra) constitute last, rather unexplored area spectroscopy providing substantial...
We present a description of the recent advances in development KORTES assembly—the first solar oriented mission designed for Russian segment International Space Station. consists several imaging and spectroscopic instruments collectively covering wide spectral range extending from extreme ultraviolet (EUV) wavelengths to X-rays. The EUV telescopes inside will trace origin dynamics various phenomena, e.g., flares, CMEs, eruptions etc. spectra provided by grazing-incidence spectroheliographs...
Abstract We present the innovative soft X-ray spectro-polarimeter, SolpeX. This instrument consists of three functionally independent blocks. They are to be included into Russian KORTES, mounted onboard ISS. The SolpeX units are: a simple pin-hole spectral imager, polarimeter, and fast-rotating drum multiple-flat-crystal Bragg spectrometer. Such combination measuring blocks will offer new opportunity reliably measure possible polarization spectra solar flares, in particular during impulsive...
Using photometric and spectroscopic observations of the double-lined early-type eclipsing binary system ALS 1135, a member distant OB association Bochum 7, we derived new physical orbital parameters its components. The masses both components were with an accuracy better than 1 per cent, their radii, 3 cent. Since primary's mass is equal to about 25 sun masses, radius was subsequently used derive age which 4.3+/-0.5 Myr. result shows that this method represents viable alternative isochrone...