35 citations · 261 across the 33 of their papers we have counts for
8 papers · 1 filter
WSRT observations and surface photometry of two unusual spiral galaxies
A. S. Saburova, G. I. G. Józsa, A. V. Zasov +1
We discuss the results of a mass decomposition of two spiral galaxies, NGC 6824 and UGC 11919. In a previous analysis of the Hyperleda catalog, the galaxies were identified as havi…
Interaction between collisionless galactic discs and nonaxissymmetric dark matter haloes
A. V. Khoperskov, S. A. Khoperskov, A. V. Zasov +2
Using -body simulations (), we examine how a non-axisymmetric dark halo affects the dynamical evolution of the structure in collisionless (stellar) discs. We…
Is dynamic heating of stellar disk inevitable?
A. Zasov, A. Saburova, I. Katkov
Major mergers or/and the repeated minor mergers lead to dynamical heating of disks of galaxies. We analyze the available data on the velocity dispersion of stellar disks of S-S0 ga…
On the possibility of the long lifetime of molecular clouds
A. Kasparova, A. Zasov
Arguments are given that at least a fraction of molecular clouds may live much longer time that it is usually assumed, without the transition into diffuse atomic gas (HI). We propo…
Do Disk Galaxies with Abnormally Low Mass-to-Light Ratios Exist?
A. S. Saburova, D. V. Bizyaev, A. V. Zasov
We performed the photometric B, V and R observations of nine disk galaxies that were suspected in having abnormally low total mass-to-light (M/L) ratios for their observed color in…
Supermassive Black Holes and Kinematics of Disc Galaxies
A. V. Zasov, A. M. Cherepashchuk, I. Yu. Katkov
The statistical relations between the masses of supermassive black holes (SMBHs) in disk galaxies and the kinematic properties of their host galaxies are analyzed. We use the radia…
Spiral galaxies with non-typical mass-to-light ratios
A. S. Saburova, E. S. Shaldenkova, A. V. Zasov
Total mass-to-light ratio M/L_B for S0 - Irr galaxies, where M is the dynamical mass within the optical radius R_25, increases systematically with (B-V)_0 color, but slower than th…
NGC 6340: an old S0 galaxy with a young polar disc. Clues from morphology, internal kinematics and stellar populations
Igor Chilingarian, Alexandra Novikova, Veronique Cayatte +3
Lenticular galaxies are believed to form by a combination of environmental effects and secular evolution. We study the nearby disc-dominated S0 galaxy NGC 6340 photometrically and…