16 citations · 66 across the 7 of their papers we have counts for
5 papers · 1 filter
Bright lenses are easy to find: Spectroscopic confirmation of lensed quasars in the Southern Sky
C. Spiniello, A. Agnello, A. V. Sergeyev +4
Gravitationally lensed quasars are valuable, but extremely rare, probes of observational cosmology and extragalactic astrophysics. Progress in these fields has been limited just by…
KiDS0239-3211: A new gravitational quadruple lens candidate
A. Sergeyev, C. Spiniello, V. Khramtsov +5
We report the discovery of a candidate to quadrupole gravitationally lensed system KiDS0239-3211 based on the public data release 3 of the KiDS survey and machine learning techniqu…
Spectroscopic follow-up of double quasar candidates
V. N. Shalyapin, A. V. Sergeyev, L. J. Goicoechea +1
We report the results of an optical spectroscopic follow-up of four double quasar candidates in the Sloan Digital Sky Survey (SDSS) database. SDSS J1617+3827 is most likely a lense…
KiDS-SQuaD: The KiDS Strongly lensed Quasar Detection project
C. Spiniello, A. Agnello, N. R. Napolitano +11
New methods have been recently developed to search for strong gravitational lenses, in particular lensed quasars, in wide-field imaging surveys. Here, we compare the performance of…
Dynamics and formation of obscuring tori in AGNs
Elena Yu. Bannikova, Alexey V. Sergeyev
We considered the evolution of a self-gravitating clumpy torus in the gravitational field of the central mass of an active galactic nucleus (AGN) in the framework of the N-body pro…