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astro-ph.GA2026
Active galactic nucleus activity in nearby disk galaxies: The roles of bar strength and spiral arm morphology
Zh. R. Martirosyan, A. A. Hakobyan, V. Adibekyan +3
(abridged) We investigate the dependence of AGN activity on bar strength and spiral arm morphology in nearby spiral galaxies, with a particular emphasis on disentangling their indi…
astro-ph.GA2026
Supernovae Ia ejecta velocities and host galaxy environments: the role of survey-selection effects
L. V. Barkhudaryan, A. A. Hakobyan, M. H. Gevorgyan +6
The origin of the near-maximum-light Si II 6355 velocity diversity among supernovae Ia (SNe Ia) remains uncertain. Previous studies have suggested that high-velocity (HV) and no…