Zobrazeno 1 - 10
of 267
pro vyhledávání: '"Sharina, M."'
Autor:
Sharina, M. E., Shimansky, V. V.
Publikováno v:
Astronomy Reports, Volume 63, Issue 8, pp.687-698 (2019)
Moderate resolution spectra of four globular clusters in the dwarf spheroidal galaxy IKN obtained with the 6-m telescope of the Special Astrophysical Observatory have been used to determine the radial velocities, ages, and metallicities of the cluste
Externí odkaz:
http://arxiv.org/abs/2406.01279
This paper presents the results of analysing the integrated light (IL) low-resolution spectra of globular clusters (GCs) in the M31 and Centaurus A groups of galaxies. The sample consists of eight very metal-poor GCs ($\rm [Fe/H]\le -2$ dex) with hig
Externí odkaz:
http://arxiv.org/abs/2402.05922
Publikováno v:
Astrophysics, Vol. 61, No. 4 (2018)
We compare the properties of the stellar populations of the globular clusters and field stars in two dwarf spheroidal galaxies (dSphs): ESO269-66, a near neighbor of the giant S0 galaxy NGC 5128, and KKs3, one of the few extremely isolated dSphs with
Externí odkaz:
http://arxiv.org/abs/2311.05990
Autor:
Sharina, M. E.
Publikováno v:
Astrophysics, Vol. 62, No. 1 (2019)
Surface photometry data on 90 dwarf irregular galaxies (dIrrs) in a wide vicinity of the Virgo cluster and 30 isolated dIrrs are presented. Images from the Sloan Digital Sky Survey (SDSS) are used. The following mean photometric characteristics (colo
Externí odkaz:
http://arxiv.org/abs/2311.05991
Autor:
E., Sharina M., M. I, Maricheva
Publikováno v:
Open Astronomy, vol. 31, no. 1, 2022, pp. 118-124
We compare the results on the chemical composition of four globular clusters (GCs) in M31 (Bol 6, Bol 20, Bol 45, and Bol 50) (Maricheva M. 2021). Study of integrated spectra of four globular clusters in M31. Astrophys. Bull. 76:389-404. doi: https:/
Externí odkaz:
http://arxiv.org/abs/2203.01011
Publikováno v:
Astrophysical Bulletin 75 (2020) 394-406
In this work a search was carried out for globular clusters belonging to the Sagittarius (Sgr) tidal stream using the analysis of spatial positions, radial velocities relative to the Galactic Standard of Rest (V_{GSR}),proper motions and ratio of "ag
Externí odkaz:
http://arxiv.org/abs/2105.09850
Autor:
Sharina, M. E., Shimansky, V. V.
We take a closer look at our published results of determination of ages, metallicities, helium mass fractions and abundances of chemical elements in Galactic globular clusters in order to find possible signatures of the phenomenon of multiple stellar
Externí odkaz:
http://arxiv.org/abs/2012.09044
Autor:
Acharova, I. A., Sharina, M. E.
The established by us possibility to consider circumgalactic clouds (CGCs) as the remnants of the parent clouds in which globular clusters (GCs) have been formed (Acharova & Sharina 2018) is based on a comparison of the following facts. First, the me
Externí odkaz:
http://arxiv.org/abs/2012.09057
Publikováno v:
Astrophysical Bulletin, 2020, Vol. 75, No. 3, pp. 247-266
We present the results of determination of the age, helium mass fraction (Y) in terms of the used stellar evolutionary models, metallicity ([Fe/H]), and abundances of the elements C, O, Na, Mg, Ca, Ti, Cr and Mn for 26 globular clusters of the Galaxy
Externí odkaz:
http://arxiv.org/abs/2009.02104
Publikováno v:
Astronomy Reports, 2018, Volume 62, Issue 11, pp.733-746
Deep stellar photometry of one of the most distant Galactic globular clusters, Palomar 3, based on frames taken with the VLT in Johnson-Cousins broadband V and Ifilters is presented, together with medium-resolution stellar spectroscopy in the central
Externí odkaz:
http://arxiv.org/abs/2007.16163