97 citations · 269 across the 12 of their papers we have counts for
12 papers
Observations of the luminous red nova AT 2021biy in the nearby galaxy NGC 4631
Y. -Z. Cai, A. Pastorello, M. Fraser +73
We present an observational study of the luminous red nova (LRN) AT\,2021biy in the nearby galaxy NGC\,4631. The field of the object was routinely imaged during the pre-eruptive st…
Star-forming regions at the periphery of the supershell surrounding the Cyg OB1 association. II. ISM kinematics and YSOs in the star cluster vdB 130 region
T. G. Sitnik, O. V. Egorov, T. A. Lozinskaya +4
We present an observational study of small-scale feedback processes operating in the star-forming region located in the wall of the expanding supershell around the Cyg OB1 associat…
Analysis of colour and polarimetric variability of RW Aur A in 2010-2018
A. Dodin, K. Grankin, S. Lamzin +6
Results of photometry and polarimetry of a young star RW Aur A observed during unprecedented long and deep (up to mag) dimming events in 2010-11 a…
A Malin 1 'cousin' with counter-rotation: internal dynamics and stellar content of the giant low surface brightness galaxy UGC 1922
Anna S. Saburova, Igor V. Chilingarian, Ivan Yu. Katkov +5
The formation scenario for giant low surface brightness (gLSB) galaxies with discs as large as 100 kpc still remains unclear. These stellar systems are rare and very hard to observ…
On the Nature of Long-Period Dwarf Novae with Rare and Low-Amplitude Outbursts
Mariko Kimura, Taichi Kato, Hiroyuki Maehara +35
There are several peculiar long-period dwarf-nova like objects, which show rare, low-amplitude outbursts with highly ionized emission lines. 1SWASP J162117441254, BD Pav, and V3…
The light curves of type II-P SN 2017eaw: first 200 days
D. Yu. Tsvetkov, S. Yu. Shugarov, I. M. Volkov +7
We present UBVRI photometry of the supernova 2017eaw in NGC 6946, obtained in the period from May 14 until December 7, 2017. We derive dates and magnitudes of maximum light in the…
The jet of the young star RW Aur A and related problems
L. N. Berdnikov, M. A. Burlak, O. V. Vozyakova +3
Comparing the images of the jet of the young star RW Aur A, separated by a period of 21.3 years, we found that the outermost jet's knots have emerged yr ago. We argue…
Anomalous eclipses of the young star RW Aur A
S. Lamzin, D. Cheryasov, G. Chuntonov +9
Results of UBVRIJHKLM photometry, VRI polarimetry and optical spectroscopy of a young star RW Aur A obtained during 2010-11 and 2014-16 dimming events are presented. During the sec…
Detection of the Binarity of the Star J1158+4239
M. Yu. Khovritchev, A. M. Kulikova, E. N. Sokov +7
One of the goals of the Pulkovo program of research on stars with large proper motions is to reveal among the low-luminosity stars those that have evidence of binarity. Twelve astr…
Luminous Red Nova 2015 in the Galaxy M101
V. P. Goranskij, E. A. Barsukova, O. I. Spiridonova +8
We present the results of the study of the red nova PSN J14021678+5426205 based on the observations carried out with the Russian 6-m telescope (BTA) along with other telescopes of…
RR Lyrae variables: visual and infrared luminosities, intrinsic colours, and kinematics
A. K. Dambis, L. N. Berdnikov, A. Y. Kniazev +4
We use UCAC4 proper motions and WISE W1-band apparent magnitudes intensity-mean for almost 400 field RR Lyrae variables to determine the parameters of the velocity distribution of…
Measurement of optical turbulence in free atmosphere above Mt.Maidanak in 2005-2007
V. Kornilov, S. Ilyasov, O. Voziakova +5
Results of 2005-2007 campaign of measurement of the optical turbulence vertical distribution above Mt. Maidanak are presented. Measurements are performed with the MASS (Multi-Apert…