activity
19992023
most citedThe ages of young star clusters, massive blue stragglers and the upper mass limit of stars: analysing age dependent stellar mass functions

172 citations · 1.6k across the 68 of their papers we have counts for

collaborators

59 papers

astro-ph.HE2023★ 1 cited

SALT spectroscopy of the HMXB associated with the LMC supernova remnant MCSNR\,J05136724

Vasilii Gvaramadze, Alexei Kniazev, Norberto Castro +1

We report the results of optical échelle spectroscopy with the Southern African Large Telescope (SALT) of the mass donor star BSDL\,923 in the neutron star (NS) high-mass X-ray bin…

astro-ph.SR2022★ 2 cited

Discovery of an optical cocoon tail behind the runaway HD 185806

Z. T. Spetsieri, P. Boumis, A. Chiotellis +6

Studies on the circumstellar structures around evolved stars provide vital information on the evolution of the parent star and the properties of the local interstellar medium. In t…

astro-ph.SR2022★ 5 cited

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…

astro-ph.HE2022★ 12 cited

And then they were two: detection of non-thermal radio emission from the bow shocks of two runaway stars

M. Moutzouri, J. Mackey, C. Carrasco González +7

Winds from massive stars have recently been deemed promising sites for investigating relativistic particle acceleration. Particularly, the resulting bow shock from the interaction…

astro-ph.GA2022★ 13 cited

Thermal emission from bow shocks II: 3D magnetohydrodynamic models of Zeta Ophiuchi

S. Green, J. Mackey, P. Kavanagh +3

The nearby, massive, runaway star Zeta Ophiuchi has a large bow shock detected in optical and infrared, and, uniquely among runaway O stars, diffuse X-ray emission is detected from…

astro-ph.HE2021★ 10 cited

SALT observations of the supernova remnant MCSNR J0127-7332 and its associated Be X-ray binary SXP 1062 in the SMC

V. V. Gvaramadze, A. Y. Kniazev, J. S. Gallagher +4

We report the results of optical spectroscopy of the Small Magellanic Cloud supernova remnant (SNR) MCSNR J0127-7332 and the mass donor Be star, 2dFS 3831, in its associated high-m…