307 citations · 607 across the 16 of their papers we have counts for
16 papers
Doppler imaging of a southern ApSi star HD 152564
I. Potravnov, T. Ryabchikova, N. Piskunov +2
We present the results of the spectroscopic study of a chemically peculiar star HD 152564. Using medium-resolution () observations obtained with the HRS spectrograph mount…
Dwarfs in nearby voids: results of SALT spectroscopy
S. A. Pustilnik, A. Y. Kniazev, A. L. Tepliakova +2
In the framework of the ongoing project, aimed at the systematical studying galaxies in nearby voids, we conducted spectroscopy with the Southern African Large Telescope (SALT) of…
Local Volume dwarf KK242: radial velocity, SF region, and metallicity
S. A. Pustilnik, A. L. Tepliakova, Y. A. Perepelitsyna +5
KK242 is a LV dwarf of transition type residing in the void environment. Koda et al. present clear indications on its connection with Scd galaxy NGC6503. This implies the distance…
Peekaboo: the extremely metal poor dwarf galaxy HIPASS J1131-31
I. D. Karachentsev, L. N. Makarova, B. S. Koribalski +3
The dwarf irregular galaxy HIPASS J1131-31 was discovered as a source of HI emission at low redshift in such close proximity of a bright star that we call it Peekaboo. The galaxy r…
How long can LBVs sleep? A long-term photometric vaiability and spectral study of the Galactic candidate luminous blue variable MN112
Olga Maryeva, Sergey Karpov, Alexei Kniazev +1
Luminous Blue Variables (LBVs) are massive stars that show strong spectral and photometric variability. The question of what evolutionary stages they represent and what exactly dri…
XMP gas-rich dwarfs in nearby voids: results of BTA spectroscopy
S. A. Pustilnik, E. S. Egorova, A. Y. Kniazev +4
We present the second part of results of the on-going project of searching for and studying eXtremely Metal-Poor (XMP, adopted as those with Z(gas) <~ Zo/30, or with 12+log(O/H) <~…