98 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Azerbaijan National Academy of SciencesAZ5 papers
- Lomonosov Moscow State UniversityRU5 papers
- Astrophysique, Instrumentation et ModélisationFR4 papers
- CEA Paris-SaclayFR4 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR4 papers
- Evgeni Kharadze Georgian National Astrophysical ObservatoryGE4 papers
- Institut de Recherche en Astrophysique et PlanétologieFR4 papers
- Observatoire de la Côte d’AzurFR4 papers
- Special Astrophysical ObservatoryRU4 papers
- Taras Shevchenko National University of KyivUA4 papers
- Tsinghua UniversityCN4 papers
- Ulugh Beg Astronomical InstituteUZ4 papers
16 papers
Herbig AeBe Star AS442A as a UXOR-type system
Nariman Ismailov, Faida Surkhai Huseynova, Volkan Bakış +3
Detailed studies of the physical characteristics of young intermediate-mass Herbig Ae/Be (HAeBe) stars require extensive sets of homogeneous observational data collected over long…
Spectral Variability of the Star HD 141569A
H. N. Adigozalzade, N. Z. Ismailov, U. Z. Bashirova +1
The paper presents the results of long-term homogeneous spectroscopic studies of the Herbig Ae/Be star HD 141569A obtained in the optical range. We detect spectral variability on t…
π Meson-Octet Baryon Coupling Constant Obtained by Hard-Wall AdS/QCD Model
Mamedov Shahin, Taghiyeva Shahnaz
The paper studies a strong coupling constant between π meson and octet baryon using the hard-wall AdS/QCD model, which considers SU(3)f symmetry-breaking effects. Briefly mentioned…
LAMOST J040901.83+329355.6 -- a new Galactic star with Wolf--Rayet characteristics on a post-AGB to CSPN transitional stage
Olga Maryeva, Aynur Abdulkarimova, Sergey Karpov +2
The similarity in physical conditions in winds of low-mass post-asymptotic giant branch stars and evolved massive stars leads to the appearance of an interesting phenomenon of spec…
GRANDMA and HXMT Observations of GRB 221009A -- the Standard-Luminosity Afterglow of a Hyper-Luminous Gamma-Ray Burst
D. A. Kann, S. Agayeva, V. Aivazyan +113
GRB 221009A is the brightest Gamma-Ray Burst (GRB) detected in more than 50 years of study. In this paper, we present observations in the X-ray and optical domains after the GRB ob…
Grandma: a network to coordinate them all
S. Agayeva, S. Alishov, S. Antier +75
GRANDMA is an international project that coordinates telescope observations of transient sources with large localization uncertainties. Such sources include gravitational wave even…
Changing looks of the nucleus of Seyfert galaxy NGC 3516 during 2016-2020
V. L. Oknyansky, Kh. M. Mikailov, N. A. Huseynov
The results of spectral observations of NGC 3516 with the 2-m telescope of the Shamakhy Astrophysical Observatory during 2016-2020 are presented. In the first half of 2016, the int…
GRANDMA Observations of Advanced LIGO's and Advanced Virgo's Third Observational Campaign
S. Antier, S. Agayeva, M. Almualla +55
GRANDMA is a network of 25 telescopes of different sizes, including both photometric and spectroscopic facilities. The network aims to coordinate follow-up observations of gravitat…
The first six months of the Advanced LIGO's and Advanced Virgo's third observing run with GRANDMA
S. Antier, S. Agayeva, V. Aivazyan +74
We present the Global Rapid Advanced Network Devoted to the Multi-messenger Addicts (GRANDMA). The network consists of 21 telescopes with both photometric and spectroscopic facilit…
Supernova 2018aoq and a distance to Seyfert galaxy NGC 4151
D. Yu. Tsvetkov, P. V. Baklanov, M. Sh. Potashov +9
We present optical photometric observations of SN 2018aoq from 2 to 100 days after explosion, and 7 spectra at epochs from 11 to 71 days. The light curves and spectra are typical f…
Multi-wavelenth monitoring of the changing-look AGN NGC 2617 during state changes
V. L. Oknyansky, C. M. Gaskell, N. A. Huseynov +18
Optical and near-infrared photometry, optical spectroscopy, and soft X-ray and UV monitoring of the changing-look active galactic nucleus NGC 2617 show that it continues to have th…
The curtain remains open: NGC 2617 continues in a high state
V. L. Oknyansky, C. M. Gaskell, N. A. Huseynov +17
Optical and near-infrared photometry, optical spectroscopy, and soft X-ray and UV monitoring of the changing look active galactic nucleus NGC 2617 show that it continues to have th…
On metal-deficient barium stars and their link with yellow symbiotic stars
A. Jorissen, L. Zacs, S. Udry +2
This paper addresses the question of why metal-deficient barium stars are not yellow symbiotic stars (YSyS). Samples of (suspected) metal-deficient barium (mdBa) stars and YSyS hav…
About the chemical composition of delta Scuti - the prototype of the class of pulsating variables
A. Yushchenko, V. Gopka, C. Kim +2
We present chemical abundances in the photosphere of Scuti -- the prototype of the class of pulsating variables -- determined from the analysis of a spectrum obtained at Tersko…
Thorium-rich halo star HD221170: further evidence against the universality of the r-process
Alexander Yushchenko, Vera Gopka, Stephane Goriely +6
We report the abundance determination in the atmosphere of the bright halo star HD221170. The spectra were taken with the Terskol Observatory's 2.0-m telescope with a resolution R=…
Eigenoscillations of the differentially rotating Sun: II. Generalization of Laplace's tidal equation
N. S. Dzhalilov, J. Staude
The general PDE governing linear, adiabatic, nonraradial oscillations in a spherical, differentially and slowly rotating non-magnetic star is derived. This equation describes mainl…