10.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Lomonosov Moscow State UniversityRU185 papers
- Institute of PhysicsPL178 papers
- Russian Academy of SciencesRU174 papers
- Centre National de la Recherche ScientifiqueFR172 papers
- Special Astrophysical ObservatoryRU165 papers
- Space Research InstituteRU144 papers
- Pulkovo ObservatoryRU127 papers
- Max Planck Institute for AstrophysicsDE97 papers
- University of TurkuFI96 papers
- National Institute for AstrophysicsIT87 papers
- University of TübingenDE87 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR76 papers
228 papers · 1 filter
Multiwavelength variability of the high-energy neutrino candidate PKS 0735+178 over three decades
T. Mufakharov, Yu. Sotnikova, V. Vlasyuk +12
We present the multiwavelength variability of the BL Lac object PKS 0735+178, associated with the high-energy neutrino event IC211208A. The light curves cover the radio (1-230 GHz)…
Multiwavelength Characterization of a New Magnetic Cataclysmic Variable 2CXO J050740.7-091337
Ilkham Galiullin, Vladislav Dodon, Antonio C. Rodriguez +2
We report the discovery and characterization of a new cataclysmic variable (CV), 2CXO J050740.7-091337 (hereafter 2CXO J0507), identified using the X-ray main sequence through a cr…
eROSITA-RU Tidal Disruption Events with Keck-I/LRIS: Sample Selection, Optical Properties, and Host Galaxy Demographics
Zirui Zhang, Yuhan Yao, Marat Gilfanov +10
We select seventy tidal disruption event (TDE) candidates among X-ray transients discovered during the eROSITA all-sky surveys in the Eastern Galactic hemisphere between December 2…
SRG/eROSITA-SDSS view on the relation between X-ray and UV emission for quasars
S. A. Prokhorenko, S. Yu. Sazonov, M. R. Gilfanov +5
Motivated by the idea of using quasars as standardizable candles for cosmology, we examine the relation between X-ray (at 2 keV, ) and ultraviolet (at 2500 Angstrom,…
Low-frequency spectra of neutron star + OB supergiant binaries: Does wind density drive persistent and flaring modes of accretion?
J. van den Eijnden, L. Sidoli, M. Díaz Trigo +10
Neutron star high-mass X-ray binaries are well-studied in wavebands between the infrared and hard X-rays. Their low-frequency millimeter and radio properties, on the other hand, re…
Unique microquasar SS433: new results, new issues
A. M. Cherepashchuk, A. V. Dodin, K. A. Postnov
The unique microquasar SS433 is a massive X-ray binary system at an advanced evolutionary stage. The optical star overflows its Roche lobe and transfers mass at a very high rate on…
An X-ray and Optical Study of the Dwarf Nova Candidate OGLE-BLG-DN-0064
A. B. Sibgatullin, V. I. Dodon, I. I. Galiullin +3
The source OGLE-BLG-DN-0064 (hereafter OGLE64) was classified as a potential dwarf nova based on its regular outburst activity revealed by the OGLE optical survey. In this paper, w…
Multiwavelength variability of the blazar AO 0235+164
V. V. Vlasyuk, Yu. V. Sotnikova, A. E. Volvach +28
We present a study of the multiwavelength (MW) variability of the blazar AO 0235+164 based on the radio-to--ray data covering a long time period from 1997 to 2023. The radio dat…
Modelling of the atomic lines' emission of fast moving pulsar nebulae
I. N. Nikonorov, M. V. Barkov, M. Lyutikov
Bow shocks generated by pulsars moving through weakly ionized interstellar medium (ISM) produce emission dominated by non-equilibrium atomic transitions. These bow shocks are prima…
A wiggling filamentary jet at the origin of the blazar multi-wavelength behaviour
C. M. Raiteri, M. Villata, M. I. Carnerero +96
Blazars are beamed active galactic nuclei known for their strong multi-wavelength variability on timescales from years down to minutes. We aim to investigate the suitability of the…
SRGe J194401.8+284452 -- an X-ray Cataclysmic Variable in the Field of the Gamma-Ray Source 4FGL J1943.9+2841
A. I. Kolbin, A. V. Karpova, M. V. Suslikov +19
SRGe J194401.8+284452 is the brightest point-like X-ray object within the position uncertainty ellipse of an unidentified -ray source 4FGL J1943.9+2841. We performed multi-wavel…
Superflare on a rapidly-rotating solar-type star captured in X-rays
Andrey Mukhin, Roman Krivonos, Ilfan Bikmaev +5
In this work, we studied X-ray source SRGe~J021932.4040154 (SRGe J021932), which we associated with a single X-ray active star of spectral class G2V-G4V and the rotational perio…
Optical variability of the blazar 3C 371: from minute to year timescales
J. Otero-Santos, C. M. Raiteri, J. A. Acosta-Pulido +41
The BL Lac object 3C 371 has been observed by the Transiting Exoplanet Survey Satellite (\textit{TESS}) for approximately a year, between July 2019 and July 2020, with an unmatched…
The variability patterns of the TeV blazar PG 1553+113 from a decade of MAGIC and multi-band observations
MAGIC Collaboration, H. Abe, S. Abe +264
PG 1553+113 is one of the few blazars with a convincing quasi-periodic emission in the gamma-ray band. The source is also a very high-energy (VHE; >100 GeV) gamma-ray emitter. To b…
A Joint SRG/eROSITA + ZTF Search: Discovery of a 97-min Period Eclipsing Cataclysmic Variable with Evidence of a Brown Dwarf Secondary
Ilkham Galiullin, Antonio C. Rodriguez, Shrinivas R. Kulkarni +24
Cataclysmic variables (CVs) that have evolved past the period minimum during their lifetimes are predicted to be systems with a brown dwarf donor. While population synthesis models…
Optical and Radio Variability of the Blazar S4 0954+658
V. V. Vlasyuk, Yu. V. Sotnikova, A. E. Volvach +23
We present an optical-to-radio study of the BL Lac object S4 0954+658 observations during 1998-2023. The measurements were obtained with the SAO RAS Zeiss-1000 1-m and AS-500/2 0.5…
Study of the Cygnus X-3 Microquasar with the RATAN-600 Radio telescope in Multi-Azimuth Observing Mode
S. A. Trushkin, A. V. Shevchenko, N. N. Bursov +4
We have been performing daily observations of bright microquasars at 1.2-20~GHz with the Northern sector of RATAN-600 radio telescope for more than ten years. During the 2019--2021…
Multi-band Cross-correlated Radio Variability of the Blazar 3C 279
Krishna Mohana A, Alok C. Gupta, Alan P. Marscher +18
We present the results of our study of cross-correlations between long-term multi-band observations of the radio variability of the blazar 3C 279. More than a decade (2008-2022) of…
Observational Implications of OJ 287's Predicted 2022 Disk Impact in the Black Hole Binary Model
Mauri J. Valtonen, Lankeswar Dey, Achamveedu Gopakumar +24
We present a summary of the results of the OJ 287 observational campaign, which was carried out during the 2021/2022 observational season. This season is special in the binary mode…
SRG/eROSITA Survey in the Lockman Hole: Classification of X-ray Sources
M. I. Belvedersky, S. D. Bykov, M. R. Gilfanov
We have classified the point-like X-ray sources detected by the SRG/eROSITA telescope in the deep Lockman Hole survey. The goal was to separate the sources into Galactic and extrag…
Imprint of magnetic obliquity in apparent spin-down of radio pulsars
Anton Biryukov, Gregory Beskin
Numerical simulations predict that the spin-down rate of a single rotation-powered neutron star depends on the angle between its spin and magnetic axes as $P\dot P \propto μ^2…
Spectroscopic Searches for Evolutionary Orbital Period Changes in WR+OB Binaries: The case of CQ Cep and CX Cep
I. Shaposhnikov, A. Cherepashchuk, A. Dodin +1
We present the results of spectroscopic observations of two eclipsing WR+OB-type systems - CQ Cep and CX Cep, performed in 2020-2023 with a low-resolution slit spectrograph TDS ($λ…
Evolutionary Increase of the orbital Separation and Change of the Roche Lobe Size in SS433
Anatol Cherepashchuk, Alexander Belinski, Alexander Dodin +1
We present results of long-term photometric monitoring of SS433 which proves a secular evolutionary increase of the orbital period of SS433 at a rate of $(1.14\pm 0.25)\times 10^{-…
Optical study of the polar BM CrB in low accretion state
A. I. Kolbin, N. V. Borisov, A. N. Burenkov +3
This paper presents a spectral and photometric study of the poorly studied polar BM CrB. Three states of the polar brightness and signs of transition from one-pole to two-pole accr…