173 citations · 435 across the 37 of their papers we have counts for
37 papers
Long-term high-resolution spectroscopic monitoring of the evolved metal-poor binary PS Gem
V. G. Klochkova, V. E. Panchuk, J. K. Zhao +3
We present results of long-term high-resolution spectroscopic monitoring of the extremely low-metallicity star PS Gem (=HD 52961), associated with IRAS 07008+1050. The spectra were…
Detection of pulsations and a non-stable wind in IRAS 01005+7910, an object with the B[e]-phenomenon
Anatoly S. Miroshnichenko, Valentina G. Klochkova, Vladimir E. Panchuk +1
Comparison of the spectra obtained at different observing dates shows significant variations in the complex H and H line profiles, such as a systematic increase in their emis…
Instabilities of the kinematic state of the atmospheres of some single C-rich post-AGB stars
Valentina G. Klochkova, Vladimir E. Panchuk, Nonna S. Tavolzhanskaya +1
To search for and study the instabilities in the atmospheres of selected post-AGB stars, we have performed a long-term high-resolution spectroscopy (R=60000) with the spectrograph…
Long-term optical spectroscopy of B[e] star CI Cam in a quiet state
Valentina G. Klochkova, Anatoly S. Miroshnichenko, Vladimir E. Panchuk
High-resolution optical spectra of the B[e] star CI Cam were obtained on arbitrary dates 2002-2023 using the echelle spectrograph NES of the 6-m BTA telescope. The temporal variabi…
High resolution optical spectra of the dormant LBV star P Cyg
Valentina G. Klochkova, Vladimir E. Panchuk, Nonna S. Tavolzhanskaya
High resolution optical spectra (R = 60 000) of the LBV star P Cyg beyond outburst were obtained on the 6-meter BTA telescope in the wavelength range 477-780 nm. We perform a detai…
ESPriF: the Echelle Spectropolarimeter of the BTA Primary Focus. Correction of Low-Frequency Variations in the Star Image
M. V. Yushkin, E. V. Emelianov, Yu. B. Verich +1
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 tech…