395 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR67 papers
- Isaac Newton InstituteCL52 papers
- Galaxies, Etoiles, Physique et InstrumentationFR45 papers
- Observatoire de ParisFR39 papers
- Crimean Astrophysical ObservatoryUA33 papers
- North Carolina Central UniversityUS32 papers
- Université Paris Sciences et LettresFR22 papers
- Heidelberg UniversityDE18 papers
- National Institute for AstrophysicsIT17 papers
- Odessa National Maritime UniversityUA17 papers
- Université Paris DiderotFR17 papers
- National Academy of Sciences of UkraineUA16 papers
22 papers · 1 filter
Newly Discovered Eclipsing Binary 2MASS J18024395+4003309 (VSX J180243.9+400331):Two-Color Photometry vs Phenomenological Modeling
Ivan L. Andronov, Yonggi Kim, Young-Hee Kim +3
We report on analysis of the two-color VR CCD observations of the newly discovered variable 2MASS J18024395+4003309=VSX J180243.9+400331 obtained using the 1-m telescope of the Mt.…
Coupled scalar fields in the late Universe: The mechanical approach and the late cosmic acceleration
Alvina Burgazli, Alexander Zhuk, João Morais +2
In this paper, we consider the Universe at the late stage of its evolution and deep inside the cell of uniformity. At these scales, we consider the Universe to be filled with dust-…
Localization and migration of phase singularities in the edge-diffracted optical-vortex beams
Aleksandr Bekshaev, Aleksey Chernykh, Anna Khoroshun +1
When a circularly-symmetric light beam with optical vortex (OV) diffracts at an opaque screen with the sharp edge, the OV core is displaced from the beam axis and, in case of the m…
GIANO Y-band spectroscopy of dwarf stars: Phosphorus, Sulphur, and Strontium abundances
E. Caffau, S. Andrievsky, S. Korotin +5
In recent years a number of poorly studied chemical elements, such as phosphorus, sulphur, and strontium, have received special attention as important tracers of the Galactic chemi…
H line as an indicator of envelope presence around the Cepheid Polaris Aa ()
I. A. Usenko, A. S. Miroshnichenko, V. G. Klochkova +1
We present the results of the radial velocity () measurements of metallic lines as well as H (H) obtained in 55 high-resolution spectra of the Cepheid UMi (Polaris…
Bending sound in graphene: origin and manifestation
V. M. Adamyan, V. N. Bondarev, V. V. Zavalniuk
It is proved that the acoustic-type dispersion of bending mode in graphene is generated by the fluctuation interaction between in-plane and out-of-plane terms in the free energy ar…
Mn abundances in the stars of the Galactic disc with metallicities -1.0 < [Fe/H] < 0.3
T. Mishenina, T. Gorbaneva, M. Pignatari +2
In this work we present and discuss the observations of the Mn abundances for 247 FGK dwarfs, located in the Galactic disc with metallicity -1<Fe/H]<+0.3. The observed stars belong…
High-resolution abundance analysis of HD 140283
C. Siqueira-Mello, S. M. Andrievsky, B. Barbuy +3
HD 140283 is a reference subgiant that is metal poor and confirmed to be a very old star. The abundances of this type of old star can constrain the nature and nucleosynthesis proce…
Scalar perturbations in the late Universe: viability of the Chaplygin gas models
Mariam Bouhmadi-López, Maxim Brilenkov, Ruslan Brilenkov +2
We study the late-time evolution of the Universe where dark energy (DE) is parametrized by a modified generalized Chaplygin gas (mGCG) on top of cold dark matter (CDM). We also tak…
Physical Nature of Hydrogen Bond
I. V. Zhyganiuk, M. P. Malomuzh
The physical nature and the correct definition of hydrogen bond (H-bond) are considered.\,\,The influence of H-bonds on the thermodynamic, kinetic, and spectroscopic properties of…
The 2003-4 multisite photometric campaign for the Beta Cephei and eclipsing star 16 (EN) Lacertae with an Appendix on 2 Andromedae, the variable comparison star
M. Jerzykiewicz, G. Handler, J. Daszynska-Daszkiewicz +26
A multisite photometric campaign for the Beta Cephei and eclipsing variable 16 Lacertae is reported. 749 h of high-quality differential photoelectric Stromgren, Johnson and Geneva…
Grid of theoretical NLTE equivalent widths of four Ba II lines and barium abundance in cool stars
S. A. Korotin, S. M. Andrievsky, C. J. Hansen +5
We present a grid of computed non-local thermodynamic equilibrium (NLTE) equivalent widths (EW) and NLTE abundance corrections for four Ba II lines: 4554, 5853, 6141, and 6496 A. T…
Dark and visible matter distribution in Coma cluster: theory vs observations
Ruslan Brilenkov, Maxim Eingorn, Alexander Zhuk
We investigate dark and visible matter distribution in the Coma cluster in the case of the Navarro-Frenk-White (NFW) profile. A toy model where all galaxies in the cluster are conc…
Emergent vortices in populations of colloidal rollers
Antoine Bricard, Jean-Baptiste-Caussin, Debasish Das +7
Coherent vortical motion has been reported in a wide variety of populations including living organisms (bacteria, fishes, human crowds) and synthetic active matter (shaken grains,…
Chemical abundances of giant stars in the Crater stellar system
P. Bonifacio, E. Caffau, S. Zaggia +4
We obtained spectra for two giants of Crater (Crater J113613-105227 and Crater J113615-105244) using X-Shooter at the VLT. The spectra have been analysed with the MyGIsFoS code usi…
Direct measurements of the extraordinary optical momentum and transverse spin-dependent force using a nano-cantilever
M. Antognozzi, C. R. Bermingham, R. L. Harniman +8
Known since Kepler's observation that a comet's tail is oriented away from the sun, radiation pressure stimulated remarkable discoveries in electromagnetism, quantum physics and re…
Sulphur in the Sculptor dwarf spheroidal galaxy - Including NLTE corrections
Asa Skuladottir, Sergei M. Andrievsky, Eline Tolstoy +4
In Galactic halo stars, sulphur has been shown to behave like other -elements, but until now, no comprehensive studies have been done on this element in stars of other galaxies.…
Discovery of blue companions to two southern Cepheids: WW Car and FN Vel
V. Kovtyukh, L. Szabados, F. Chekhonadskikh +2
A large number of high-dispersion spectra of classical Cepheids were obtained in the region of the CaII H+K spectral lines. The analysis of these spectra allowed us to detect the p…
Physical interpretation of point-like interactions of one-dimensional Schrödinger operator
V. L. Kulinskii, D. Yu. Panchenko
We consider physical interpretations of non-trivial boundary conditions of self-adjoint extensions for one-dimensional Schrödinger operator of free spinless particle. Despite its m…
Are dark energy models with variable EoS parameter compatible with the late inhomogeneous Universe?
Ozgur Akarsu, Mariam Bouhmadi-López, Maxim Brilenkov +3
We study the late-time evolution of the Universe where dark energy (DE) is presented by a barotropic fluid on top of cold dark matter (CDM). We also take into account the radiation…
Nature of the Frequency Shift of Hydrogen Valence Vibrations
I. V. Zhyganiuk, M. P. Malomuzh
The physical nature of a frequency shift of hydrogen valence vibrations in a water molecule due to its interaction with neighbor molecules has been studied. Electrostatic forces co…
Active particles in heterogeneous media display new physics: existence of optimal noise and absence of bands and long-range order
Oleksandr Chepizhko, Fernando Peruani
We present a detailed study of the large-scale collective properties of self-propelled particles (SPPs) moving in two-dimensional heterogeneous space. The impact of spatial heterog…