Zobrazeno 1 - 10
of 203
pro vyhledávání: '"Panchuk., V. E."'
Publikováno v:
ISSN 1990-3413, Astrophysical Bulletin, 2023, Vol. 78, No. 4, pp. 613-621
The development of a corrector for low-frequency variations in the star image at the input of ESPriF, the echelle spectropolarimeter of the BTA primary focus, is reported. New technical solutions have made it possible to extend the operating frequenc
Externí odkaz:
http://arxiv.org/abs/2401.14874
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$2021, a radial velocity variability is found. Heliocentric V
Externí odkaz:
http://arxiv.org/abs/2207.09741
Autor:
Klochkova, V. G., Miroshnichenko, A. S., Panchuk, V. E., Tavolzhanskaya, N. S., Yushkin, M. V.
The optical spectra of the B-supergiant LS III+52 24 (IRAS 22023+5249) obtained at the 6-meter telescope BTA with a resolution R$\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
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
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
Based on the data of spectral monitoring of the yellow hypergiant V509 Cas performed in 1996-2018 at the 6-m telescope with the spectral resolution of R$\ge$60 000, we studied in detail its kinematic state at various levels of extended atmosphere. No
Externí odkaz:
http://arxiv.org/abs/1901.08333
Spectral monitoring of the yellow hypergiant $\rho$ Cas with the by 6-m telescope of the Special Astrophysical Observatory with a spectral resolution of R$\ge$60000 has led to the detection of new features in the kinematic state of its extended atmos
Externí odkaz:
http://arxiv.org/abs/1808.00220
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.
