Zobrazeno 1 - 10
of 469
pro vyhledávání: '"A, Gvaramadze"'
We report the results of optical \'echelle spectroscopy with the Southern African Large Telescope (SALT) of the mass donor star BSDL\,923 in the neutron star (NS) high-mass X-ray binary XMMU\,J051342.6$-$672412 associated with the LMC supernova remna
Externí odkaz:
http://arxiv.org/abs/2306.06437
Autor:
Spetsieri, Z. T., Boumis, P., Chiotellis, A., Akras, S., Derlopa, S., Shetye, S., Meyer, D. M. A., Bowman, D. M., Gvaramadze, V. V.
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 this work, we present the discovery and characterization of an optical
Externí odkaz:
http://arxiv.org/abs/2206.14806
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 513, Issue 4, July 2022, Pages 5752-5765
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 drives their instability is still open, and thus is it important to under
Externí odkaz:
http://arxiv.org/abs/2205.14542
Autor:
Moutzouri, M., Mackey, J., González, C. Carrasco, Gong, Y., Brose, R., Zargaryan, D., Toalá, J. A., Menten, K. M., Gvaramadze, V. V., Rugel, M. R.
Publikováno v:
A&A 663, A80 (2022)
Winds from massive stars have recently been deemed promising sites for investigating relativistic particle acceleration. Particularly, the resulting bow shock from the interaction of the winds of runaway stars with interstellar matter has been observ
Externí odkaz:
http://arxiv.org/abs/2204.11913
Autor:
A. Agrawal, L. Romics, D. Thekkinkattil, M. Soliman, M. Kaushik, P. Barmpounakis, C. Mortimer, C.A. Courtney, A. Goyal, E. Garreffa, A. Carmichael, R.A. Lane, C. Rutherford, B. Kim, R. Achuthan, V. Pitsinis, S. Goh, B. Ray, K. Grover, R. Vidya, J. Murphy, Dorin Dumitru, Raouef Bichoo, Nirbhaibir Singh, Hussein Tuffaha, Evangelos Mallidis, Kalliope Valassiadou, Venla Kantola, Lydia Prusty, Anzors Gvaramadze, Vivienne Blackhall, James Mansell, Ahmed Hamad
Publikováno v:
Breast, Vol 71, Iss , Pp 82-88 (2023)
Background: Partial breast reconstruction with a pedicled chest wall perforator flap (CWPF) enables breast conservation in a higher tumour: breast volume ratio scenario. Since there is limited evidence, this retrospective cohort study aimed to ascert
Externí odkaz:
https://doaj.org/article/ecd5609b80d34b0db9ebec0bbfc1a5b1
Autor:
Gvaramadze, V. V., Kniazev, A. Y., Gallagher, J. S., Oskinova, L. M., Chu, Y. -H., Gruendl, R. A., Katkov, I. Y.
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-mass X-ray binary SXP 1062 carried out with the Southern African Large
Externí odkaz:
http://arxiv.org/abs/2103.03707
Autor:
Müllner, M., Zwintz, K., Corsaro, E., Steindl, T., Potravnov, I., Guenther, E. W., Kniazev, A., Gvaramadze, V.
Publikováno v:
A&A 647, A168 (2021)
In recent years, our understanding of solar-like oscillations from main sequence to red giant stars has improved dramatically thanks to pristine data collected from space telescopes. One of the remaining open questions focuses around the observationa
Externí odkaz:
http://arxiv.org/abs/2012.07878
Publikováno v:
Res. Notes AAS 4 169 (2020)
We present the results of deep narrowband imaging of two nested shells around the blue supergiant ALS 19653,which confirm that the outer shell is physically associated with the star.
Externí odkaz:
http://arxiv.org/abs/2010.00033
We present the results of study of the Galactic candidate luminous blue variable Wray 15-906, revealed via detection of its infrared circumstellar shell (of \approx2 pc in diameter) with the Wide-field Infrared Survey Explorer and the Herschel Space
Externí odkaz:
http://arxiv.org/abs/2008.12797
The merger of two white dwarfs (WD) is a natural outcome from the evolution of many binary stars. Recently, a WD merger product, IRAS 00500+6713, was identified. IRAS 00500+6713 consists of a central star embedded in a circular nebula. The analysis o
Externí odkaz:
http://arxiv.org/abs/2008.10612