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6 papers
Observations of ultraluminous X-ray sources with the 6-m telescope of the SAO RAS
A. Vinokurov, K. Atapin, Y. Solovyeva +2
The nature of ultraluminous X-ray sources (ULXs) is not yet fully understood but it can be done in the most efficient way by analyzing its optical emission and environment. We pres…
Ionized gas in the NGC 3077 galaxy
D. V. Oparin, O. V. Egorov, A. V. Moiseev
The nearby dwarf galaxy NGC 3077 is known for its peculiar morphology, which includes numerous dust lanes and emission-line regions. The interstellar medium in this galaxy is subje…
SDSS-IV MaNGA: The Nature of an Off-galaxy H Blob -- A Multi-wavelength View of Offset Cooling in a Merging Galaxy Group
Hsi-An Pan, Lihwai Lin, Bau-Ching Hsieh +20
Galaxies in dense environments, such as groups and clusters, experience various processes by which galaxies gain and lose gas. Using data from the SDSS-IV MaNGA survey, we previous…
Extended Gaseous Disk in the S0 galaxy NGC 4143
O. K. Sil'chenko, A. V. Moiseev, D. V. Oparin
We present our results of the spectroscopic study of the lenticular galaxy NGC 4143 - an outskirt member of the Ursa Major cluster. Using the observations at the 6-m SAO RAS telesc…
Mapper of Narrow Galaxy Lines (MaNGaL): new tunable filter imager for Caucasian telescopes
A. V. Moiseev, A. E. Perepelitsyn, D. V. Oparin
We described the design and operation principles of a new tunable-filter photometer developed for the 1-m telescope of the Special Astrophysical Observatory of the Russian Academy…
Diagnostics of ionized gas in galaxies with the "BPT--radial velocity dispersion" relation
D. V. Oparin, A. V. Moiseev
In order to study the state of gas in galaxies, diagrams of the relation of optical emission line fluxes are used allowing one to separate main ionization sources: young stars in t…