Zobrazeno 1 - 10
of 739
pro vyhledávání: '"Klochkova, V."'
High-resolution spectra of the LBV candidate Schulte 12 in the Cyg OB2 association were obtained at the 6-meter BTA telescope with the NES echelle spectrograph on the arbitrary dates in 2001-2022. Variability of the emission profile of H$\alpha$ and
Externí odkaz:
http://arxiv.org/abs/2301.08916
Autor:
Klochkova, V. G., Panchuk, V. E.
In the optical spectra of the cold post-AGB supergiant GSC 04050$-$02366, obtained with the 6-meter BTA telescope with a spectral resolution of R$\ge$60000 on arbitrary dates over 2019$\div$2021, a radial velocity variability is found. Heliocentric V
Externí odkaz:
http://arxiv.org/abs/2207.09741
Autor:
Klochkova, V. G.1 (AUTHOR) Valentina.R11@yandex.ru, Panchuk, V. E.1 (AUTHOR), Yushkin, M. V.1 (AUTHOR)
Publikováno v:
Astrophysical Bulletin. Mar2022, Vol. 77 Issue 1, p84-93. 10p.
Autor:
Klochkova, V. G., Miroshnichenko, A. S., Panchuk, V. E., Tavolzhanskaya, N. S., Yushkin, M. V.
The optical spectra of the B-supergiant LS III+52 24 (IRAS 22023+5249) obtained at the 6-meter telescope BTA with a resolution R$\ge$60000 in 2010-2021 revealed signs of wind variability and velocity stratification in the extended atmosphere. The H$\
Externí odkaz:
http://arxiv.org/abs/2205.03030
Over the past two decades the echelle spectrograph NES of the 6-m telescope was used to perform high resolution spectroscopy of far evolved stars spanning a wide range of initial masses. The studies cover a diversity of stars with high mass-loss rate
Externí odkaz:
http://arxiv.org/abs/2201.12024
Autor:
Klochkova, V. G.1 (AUTHOR) Valentina.R11@yandex.ru, Panchuk, V. E.1 (AUTHOR), Tavolzhanskaya, N. S.1 (AUTHOR)
Publikováno v:
Astronomy Reports. Dec2023, Vol. 67 Issue 12, p1381-1393. 13p.
We briefly present the history of technical solutions aimed at improving the efficiency of spectroscopy on small- and moderate-diameter telescopes. We assess the current state of spectroscopy techniques and some of the perspectives.
Comment: 36
Comment: 36
Externí odkaz:
http://arxiv.org/abs/2105.12492
Autor:
Klochkova, V. G.1 (AUTHOR) Valentina.R11@yandex.ru, Panchuk, V. E.1 (AUTHOR), Yushkin, M. V.1 (AUTHOR)
Publikováno v:
Astrophysical Bulletin. Sep2023, Vol. 78 Issue 3, p412-428. 17p.
Some evidences of wind variability and velocity stratification in the extended atmosphere has been found in the spectra of the supergiant V340 Ser (=IRAS 17279$-$1119) taken at the 6-m BTA telescope with a spectral resolution R$\ge$60000. The H$\alph
Externí odkaz:
http://arxiv.org/abs/2010.07535
Autor:
Miroshnichenko, A. S., Danford, S., Zharikov, S. V., Klochkova, V. G., Chentsov, E. L., Vanbeveren, D., Zakhozhay, O. V., Manset, N., Pogodin, M. A., Omarov, C. T., Kuratova, A. K., Khokhlov, S. A.
We report the results of a long-term spectroscopic monitoring of the A-type supergiant with the B[e] phenomenon 3 Pup = HD 62623. We confirm earlier findings that it is a binary system. The orbital parameters were derived using cross-correlation of t
Externí odkaz:
http://arxiv.org/abs/2005.07754