47 citations · 256 across the 18 of their papers we have counts for
18 papers
Time-delay and lens galaxy redshift in the doubly imaged quasar PS J2305+3714
O. A. Burkhonov, V. N. Shalyapin, A. V. Sergeyev +6
We present results from a seven-season (2018-2024) monitoring campaign of the gravitationally lensed quasar system PS J2305+3714 using the 1.5-m Maidanak Telescope in the optical R…
Polarimetry of M-type asteroids in the context of their surface composition
I. Belskaya, A. Berdyugin, Yu. Krugly +9
Aims. We aim to investigate how polarimetric observations can improve our understanding of the nature and diversity of M/X-type asteroids. Methods. Polarimetric observations of the…
Multi-filter photometry of Solar System Objects from the SkyMapper Southern Survey
A. V. Sergeyev, B. Carry, C. A. Onken +3
Context. The populations of small bodies of the Solar System (asteroids, comets, Kuiper Belt objects) are used to constrain the origin and evolution of the Solar System. Both their…
VEXAS: VISTA EXtension to Auxiliary Surveys -- Data Release 2: Machine-learning based classification of sources in the Southern Hemisphere
V. Khramtsov, C. Spiniello, A. Agnello +1
We present the second public data release (DR) of the VISTA EXtension to Auxiliary Surveys (VEXAS), where we classify objects into stars, galaxies and quasars based on an ensemble…
Dynamical model of an obscuring clumpy torus in AGNs: I. Velocity and velocity dispersion maps for interpretation of ALMA observations
E. Yu. Bannikova, A. V. Sergeyev, N. A. Akerman +4
We have developed the dynamical model of a clumpy torus in an active galactic nucleus (AGN) and compared to recent ALMA observations. We present -body simulations of a torus in…
Resolving the inner accretion flow towards the central supermassive black hole in SDSS J1339+1310
V. N. Shalyapin, L. J. Goicoechea, C. W. Morgan +2
We studied the accretion disc structure in the doubly imaged lensed quasar SDSS J1339+1310 using -band light curves and UV-visible to near-IR (NIR) spectra from the first 11 obs…