1.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- National Academy of Sciences of UkraineUA148 papers
- V. N. Karazin Kharkiv National UniversityUA83 papers
- Jilin UniversityCN46 papers
- Centre National de la Recherche ScientifiqueFR27 papers
- Observatoire de ParisFR22 papers
- State Key Laboratory on Integrated OptoelectronicsCN22 papers
- O.Ya. Usikov Institute for Radiophysics and ElectronicsUA20 papers
- Space Research InstituteRU20 papers
- Austrian Academy of SciencesAT18 papers
- Laboratoire d’études spatiales et d’instrumentation en astrophysiqueFR18 papers
- Bar-Ilan UniversityIL15 papers
- Technion – Israel Institute of TechnologyIL14 papers
26 papers · 1 filter
VEGAS: VST Early-type GAlaxy Survey. V. IC 1459 group: Mass assembly history in low density environments
E. Iodice, M. Spavone, A. Cattapan +9
This paper is based on the multi-band VST Early-type GAlaxy Survey (VEGAS) with the VLT Survey Telescope (VST). We present new deep photometry of the IC1459 group in g and r band.…
Superscattering from subwavelength corrugated cylinders
Vitalii I. Shcherbinin, Volodymyr I. Fesenko, Tetiana I. Tkachova +1
Wave scattering from a cylinder with a tensor impedance surface is investigated based on the Lorentz-Mie theory. A practical example of such a cylinder is a subwavelength metallic…
Redshifted 21-cm emission signal from the halos in Dark Ages
B. Novosyadlyj, V. Shulga, Yu. Kulinich +1
The emission in the hyperfine structure 21 cm line of atomic hydrogen arising in the halos with masses M from the Dark Ages in the models with Warm Dark…
Rotational spectrum of isotopic methyl mercaptan, (13)CH3SH, in the laboratory and towards Sagittarius B2(N2)
V. V. Ilyushin, O. Zakharenko, F. Lewen +9
Methyl mercaptan (CH3SH) is a known interstellar molecule with abundances high enough that the detection of some of its minor isotopologues is promising. The present study aims at…
Calibration of RADMON Radiation Monitor Onboard Aalto-1 CubeSat
Philipp Oleynik, Rami Vainio, Arttu Punkkinen +11
RADMON is a small radiation monitor designed and assembled by students of the University of Turku and the University of Helsinki. It is flown on-board Aalto-1, a 3-unit CubeSat in…
Thermal and Resonant Emission of Dark Ages Halos in the Rotational Lines of HeH
Yu. Kulinich, B. Novosyadlyj, V. Shulga +1
We analyse the thermal emission and resonant scattering of CMB radiation from the dark ages halos in the rotational lines of the helium hydride ion (HeH), one of the first ch…
First observation of the solar Type III burst decay and its interpretation
Valentin N. Melnik, Alexandr A. Konovalenko, Sergey M. Yerin +6
A decay of Type III burst into two Type III bursts was registered during solar observations by GURT and URAN-2 radio telescopes on April 18, 2017. Such phenomenon was observed for…
Early indications of anomalous behavior in the 2019 spring ozone hole over Antarctica
Gennadi Milinevsky, Oleksandr Evtushevsky, Andrew Klekociuk +4
The level of quasi-stationary planetary wave (QSW) activity in the Antarctic winter stratosphere provides insights into the likely behavior of the ozone hole in the following sprin…
Rotational spectroscopy of methyl mercaptan CHSH at millimeter and submillimeter wavelengths
O. Zakharenko, V. V. Ilyushin, F. Lewen +8
We present a new global study of the millimeter (mm) wave, submillimeter (sub-mm) wave, and terahertz (THz) spectra of the lowest three torsional states of methyl mercaptan (CH…
Hydrogen Molecules in the Dark Ages Halos: Thermal Emission vs. Resonant Scattering
B. Novosyadlyj, V. Shulga, Yu. Kulinich +1
The emission from dark ages halos in the lines of transitions between lowest rotational levels of hydrogen and hydrogen deuteride molecules is analyzed. It is assumed molecules to…
Peculiar motions of the gas at the centre of the barred galaxy UGC 4056
I. A. Zinchenko, L. S. Pilyugin, F. Sakhibov +6
We derive the circular velocity curves of the gaseous and stellar discs of UGC 4056, a giant barred galaxy with an active galactic nucleus (AGN). We analyse UGC 4056 using the 2D s…
Spontaneous and engineered transformations of topological structures in nonlinear media with gain and loss
B. A. Kochetov, O. G. Chelpanova, V. R. Tuz +1
In contrast to conservative systems, in nonlinear media with gain and loss the dynamics of localized topological structures can exhibit unique features that can be controlled exter…
Atmospheric Electricity at the Ice Giants
K. L. Aplin, G. Fischer, T. A. Nordheim +3
Lightning was detected by Voyager 2 at Uranus and Neptune, and weaker electrical processes also occur throughout planetary atmospheres from galactic cosmic ray (GCR) ionisation. Li…
Weak field limit of higher dimensional massive Brans-Dicke gravity: Observational constraints
Ozgur Akarsu, Alexey Chopovsky, Valerii Shulga +2
We consider higher-dimensional massive Brans-Dicke theory with Ricci-flat internal space. The background model is perturbed by a massive gravitating source which is pressureless in…
KiDS-SQuaD II: Machine learning selection of bright extragalactic objects to search for new gravitationally lensed quasars
Vladislav Khramtsov, Alexey Sergeyev, Chiara Spiniello +9
The KiDS Strongly lensed QUAsar Detection project (KiDS-SQuaD) aims at finding as many previously undiscovered gravitational lensed quasars as possible in the Kilo Degree Survey. T…
Rotational spectroscopy of isotopic species of methyl mercaptan at millimeter and submillimeter wavelengths: CHSH
Olena Zakharenko, Frank Lewen, Vadim V. Ilyushin +9
Methyl mercaptan (CHSH) is an important sulfur-bearing species in the interstellar medium, terrestrial environment, and potentially in planetary atmospheres. The aim of the pre…
Chiral metasurface formed by 3D-printed square helices: A flexible tool to manipulate wave polarization
Shengzhe Wu, Vladimir V. Yachin, Vitalii I. Shcherbinin +1
The transmission of linearly and circularly polarized waves are studied both theoretically and experimentally for chiral metasurfaces formed by arrays of metallic square helices. T…
Invisibility and perfect absorption of all-dielectric metasurfaces originated from the transverse Kerker effect
Hadi K. Shamkhi, Andrey Sayanskiy, Adria Canos Valero +5
Dielectric metasurfaces perform unique photonics effects and serve as the engine of nowadays light-matter technologies. Here, we suggest theoretically and demonstrate experimentall…
Direct Observations of Traveling Ionospheric Disturbances as Focusers of Solar Radiation: Spectral Caustics
Artem Koval, Yao Chen, Takuya Tsugawa +9
The solar radiation focusing effect is related to the specific phenomenon of propagation of the Sun-emitted HF and VHF waves through terrestrial ionosphere. This natural effect is…
Dual-polarized all-angle cloaking of a dielectric nanowire by helical graphene ribbons
Vitalii I. Shcherbinin, Yuliya K. Moskvitina, Volodymyr I. Fesenko +1
Scattering from a dielectric nanowire coated by helical graphene strips (nanoribbons) is investigated for dual-polarized wave at oblique incidence. In the long-wavelength approxima…
Long-term photometric monitoring of the dwarf planet (136472) Makemake
T. A. Hromakina, I. N. Belskaya, Yu. N. Krugly +17
We studied the rotational properties of the dwarf planet Makemake. The photometric observations were carried out at different telescopes between 2006 and 2017. Most of the measurem…
Metasurface engineering through bound states in the continuum
Anton S. Kupriianov, Yi Xu, Andrey Sayanskiy +3
Metasurfaces have attracted a lot of attention in recent years due to novel ways they provide for the efficient wavefront control and engineering of the resonant transmission. We d…
Comparative analysis of solar radio bursts before and during CME propagation
G. Dididze, B. M. Shergelashvili, V. N. Melnik +5
As is well known, CME propagation often results in the fragmentation of the solar atmosphere on smaller regions of density (magnetic field) enhancement (depletion). It is expected…
Logic gates on stationary dissipative solitons
Bogdan Kochetov, Iaroslavna Vasylieva, Alexander Butrym +1
Stable dissipative solitons are perfect carries of optical information due to remarkable stability of their waveforms that allows the signal transmission with extremely dense solit…