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Dubovichenko S.B.,Vg Fesenkov Astrophysical Institute | Dzhazairov-Kakhramanov A.V.,Vg Fesenkov Astrophysical Institute
Bulletin of the Russian Academy of Sciences: Physics | Year: 2011

The possibility of describing new experimental data on the astrophysical S factor of radiative 4He 12C-capture at energies ranging from0.9 to 4 MeV in the context of the potential cluster model is considered. © Allerton Press, Inc., 2011. Source

Denissyuk E.K.,Vg Fesenkov Astrophysical Institute | Valiullin R.R.,Vg Fesenkov Astrophysical Institute | Gaisina V.N.,Vg Fesenkov Astrophysical Institute
Astronomy Reports | Year: 2015

Spectrograms of the Seyfert galaxy Ark 120 obtained in 1976–2013 are used to measure the radial velocities of emission features. It is assumed that these emission features with variable radial velocities are radiated by objects moving along Keplerian orbits in the gravitational field of the central body. Based on the available data, the parameters of the motion of three objects in the near-nuclear region of Ark 120 are calculated; the mass of its central body is estimated to be (1.675 ± 0.028) × 108M⊙. © 2015, Pleiades Publishing, Ltd. Source

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