10 papers
Photometric and spectral variability of the candidate post-AGB star IRAS 07506-0345
N. P. Ikonnikova, M. A. Burlak, A. V. Dodin
We report photometric and spectroscopic observations of the poorly studied post-AGB candidate IRAS 07506-0345, obtained with the telescopes of the Caucasian Mountain Observatory of…
The curved jet in the young star FN Tau
M. A. Burlak, A. V. Dodin, A. V. Zharova +5
In the vicinity of the young star FN Tau, we have detected a microjet and four Herbig-Haro objects, whose positions and kinematics indicate the presence of a bipolar collimated out…
Photometric and Spectral Evolution of the Symbiotic Nova HM Sagittae since 2003
N. P. Ikonnikova, V. I. Shenavrin, G. V. Komissarova +2
We present photometric and spectral monitoring of the symbiotic system HM Sge, which consists of a Mira variable with a dust shell and a hot white dwarf ionizing the surrounding ga…
The eruptive young star IRAS 21204+4913
M. A. Burlak, A. V. Dodin, A. V. Zharova +7
The results of photometric, polarimetric, and spectroscopic observations are presented for the young star IRAS 21204+4913, whose visible brightness has increased by $\approx 5^{\rm…
On the influence of component orbital motion on the photometric variability of DF Tau
M. A. Burlak, K. N. Grankin, A. V. Dodin +6
Based on the analysis of the long-term light curve of the young binary DF Tau spanning approximately 125 years, we infer that its brightness variations are associated with changes…
IRAS 22272+5435 (V354 Lac): Multicolor Photometry of a Variable Carbon-rich post-AGB Star and a Dust Formation Episode
N. P. Ikonnikova, V. I. Shenavrin, G. V. Komissarova +1
We present new UBV photometric observations (2009-2024) of the carbon-rich post-AGB star IRAS 22272+5435 (V354 Lac), combined with our data spanning over 30 years (1991-2024). The…