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  1. No Access

    Article

    An Optically Thin and Thick Dust Exosphere of Active Asteroids: Spectral Signs and Possible Formation Mechanisms

    The detection and study of spectral signs of sublimation-driven dust activity (SDA) in 20 primitive-type asteroids of the Main Belt observed in the visible range allowed us to ascertain its temporal (or period...

    V. V. Busarev, E. V. Petrova, V. B. Puzin, S. I. Barabanov… in Solar System Research (2024)

  2. No Access

    Article

    Ultrafast Variability of Line Profiles in Spectra of γ Ori

    High time-resolution (∆T~2 min) observations of the B2V star γ Ori on the 2-m telescope at the Terskol Peak Observatory are presented. Regular components of line profile variations with periods from ~57 min to...

    A. F. Kholtygin, V. B. Puzin, I. V. Sokolov, M. S. Kurdoyakova in Astrophysics (2023)

  3. No Access

    Article

    Activity of ET Dra—a Star of FK Com Type

    Abstract—We present new results of the study of ET Dra—a star of the FK Com type—based on observations carried out at the Zvenigorod Observatory of the Institute of Astronomy of RAS with the help of the FRAM-ORM ...

    I. S. Savanov, S. V. Karpov, G. M. Beskin, A. V. Biryukov… in Astrophysical Bulletin (2022)

  4. No Access

    Article

    KIC 2142183 as a FK Com Star Candidate

    The star KIC 2142183, which was previously noted as a rapidly rotating giant with flare activity, was studied based on the analysis of photometric observations with the Kepler space telescope. We have estimate...

    I. S. Savanov, E. S. Dmitrienko, X. Jiang, H. Wang, M. E. Sachkov… in Astronomy Reports (2022)

  5. No Access

    Article

    KIC 7732964 – A Possible Candidate FK Com-Type Star

    This article is a brief survey of our previous work devoted to searching for candidate type FK Com giant stars and an analysis of data for yet another new candidate, KIC 7732964. Establishing that KIC 7732964 ...

    E. S. Dmitrienko, I. S. Savanov, V. B. Puzin in Astrophysics (2021)

  6. No Access

    Article

    Search for Ultrafast Variability of Line Profiles in the Spectrum of ε Per A

    The results of observations at high temporal resolution (∆T~4 min) of the B0.5V star ε Per A on the 2-m telescope of the Terskol Observatory are reported. Regular components of variations in line profiles with...

    A. F. Kholtygin, V. B. Puzin, I. V. Sokolov, G. M. Karataeva in Astrophysics (2020)

  7. No Access

    Article

    Hardware and Software for the Data Aсquisition Systems of the Andyrchi and Carpet-3 Air Shower Facilities

    In this work, modernized data acquisition systems of the Andyrchi and Carpet-3 shower facilities with automated data preprocessing and data transmission systems to the observatory of the Terskol Branch of the ...

    A. N. Kurenya, I. S. Savanov, V. B. Petkov… in Physics of Particles and Nuclei (2018)

  8. No Access

    Article

    Photometric Observations of LO Peg in 2017

    New observations of the ultrafast rotator of the K3 spectral type, the star LO Peg, were carried out using a robotic wide-angle observation system in the Zvenigorod observatory of INASAN in 2017. Temperature-i...

    I. S. Savanov, S. A. Naroenkov, M. A. Nalivkin, V. B. Puzin… in Astrophysical Bulletin (2018)

  9. No Access

    Article

    A search for FK Com candidates using Kepler Space Telescope observations: Analogs of HD 199178

    Analysis of collected photometric observations obtained with the Kepler Space Telescope were used to select and study 33 objects with parameters corresponding to those of the FK Com starHD199178; these can be ...

    V. B. Puzin, I. S. Savanov, E. S. Dmitrienko in Astronomy Reports (2017)

  10. No Access

    Article

    Material composition assessment and discovering sublimation activity on asteroids 145 Adeona, 704 Interamnia, 779 Nina, and 1474 Beira

    Spectrophotometric observations of 145 Adeona, 704 Interamnia, 779 Nina, and 1474 Beira—asteroids of close primitive types—allowed us to detect similar mineralogical absorption bands in their reflectance spect...

    V. V. Busarev, S. I. Barabanov, V. B. Puzin in Solar System Research (2016)

  11. No Access

    Article

    Spots and activity cycles of the star FKCom—2013–2015 data analysis

    We present an analysis of new photometric and spectropolarimetric observations of a chromospherically active star FKCom. Based on this observational data and the data from the literature sources, applying a co...

    V. B. Puzin, I. S. Savanov, E. S. Dmitrienko, I. I. Romanyuk… in Astrophysical Bulletin (2016)

  12. No Access

    Article

    A possible mechanism for the formation of humps in the orbital light curves of WZ Sge cataclysmic variable stars

    A mechanism for the formation of humps in the light curves of WZ Sge cataclysmic variables is proposed, based on the results of three-dimensional simulations of the gas dynamics in the V455 And system. Analysi...

    D. A. Kononov, D. V. Bisikalo, V. B. Puzin, A. G. Zhilkin… in Astronomy Reports (2015)

  13. No Access

    Article

    Possibilities for identifying FK com candidates using observations with the Kepler Space Telescope

    High-accuracy photometric observations obtained with the Kepler Space Telescope are used to identify candidate FK Com stars-a very rare group of single, rapidly rotating, chromospherically active G-K stars. Pu...

    V. B. Puzin, I. S. Savanov, E. S. Dmitrienko in Astronomy Reports (2014)

  14. No Access

    Article

    A study of the magnetic field in FK Com

    We present the results of our new spectropolarimetric observations of FKCom aimed to measure the longitudinal component B z of its magnetic field. The most inte...

    V. B. Puzin, I. S. Savanov, I. I. Romanyuk, E. A. Semenko… in Astrophysical Bulletin (2014)