105 citations · 569 across the 20 of their papers we have counts for
20 papers
Modelling interstellar structures around Vela X-1
V. V. Gvaramadze, D. B. Alexashov, O. A. Katushkina +1
We report the discovery of filamentary structures stretched behind the bow-shock-producing high-mass X-ray binary Vela X-1 using the SuperCOSMOS H-alpha Survey and present the resu…
IRAS 18153-1651: an H II region with a possible wind bubble blown by a young main-sequence B star
V. V. Gvaramadze, J. Mackey, A. Y. Kniazev +5
We report the results of spectroscopic observations and numerical modelling of the H II region IRAS 18153-1651. Our study was motivated by the discovery of an optical arc and two m…
SALT spectroscopy of evolved massive stars
A. Y. Kniazev, V. V. Gvaramadze, L. N. Berdnikov
Long-slit spectroscopy with the Southern African Large Telescope (SALT) of central stars of mid-infrared nebulae detected with the Spitzer Space Telescope and Wide-field Infrared S…
Central stars of mid-infrared nebulae discovered with Spitzer and WISE
V. V. Gvaramadze, A. Y. Kniazev
Searches for compact mid-IR nebulae with the Spitzer Space Telescope and the Wide-field Infrared Survey Explorer (WISE), accompanied by spectroscopic observations of central stars…
Discovery of a new bona fide luminous blue variable in Norma
V. V. Gvaramadze, A. Y. Kniazev, L. N. Berdnikov
We report the results of optical spectroscopy of the candidate evolved massive star MN44 revealed via detection of a circular shell with the Spitzer Space Telescope. First spectra…
Models of the circumstellar medium of evolving, massive runaway stars moving through the Galactic plane
D. M. -A. Meyer, J. Mackey, N. Langer +4
At least 5 per cent of the massive stars are moving supersonically through the interstellar medium (ISM) and are expected to produce a stellar wind bow shock. We explore how the ma…