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  1. No Access

    Article

    Photometric Studies of the Intermediate Polar DO Dra in 2008 and 2019

    An analysis is presented of photometric observations of the intermediate polar DO Dra obtained during an epoch of significant reduction in its outburst activity for different average brightnesses of the system...

    Ju. V. Babina, E. P. Pavlenko, M. V. Andreev in Astrophysics (2020)

  2. No Access

    Article

    Photometric studies of comet C/2009 P1 (Garradd) before the perihelion

    The results of the photometric observations of comet C/2009 P1 (Garradd) performed at the 60-cm Zeiss-600 telescope of the Terskol observatory have been analyzed. During the observations, the comet was at the ...

    A. V. Ivanova, S. A. Borisenko, M. V. Andreev in Solar System Research (2014)

  3. No Access

    Article

    P/2010 TO20 LINEAR-Grauer: A comet in transition from Centaurs to the Jupiter family

    The object P/2010 TO20 LINEAR-Grauer, discovered at a heliocentric distance of over 5 AU, and at first classified as a Trojan, is now believed to be a comet. This paper reports special observations of the obje...

    V. V. Emel’yanenko, N. Yu. Emel’yanenko, S. A. Naroenkov… in Solar System Research (2013)

  4. No Access

    Article

    Fast spectrophotometry of the flare star EV lacertae

    We present the results of fast spectrophotometry for two flares on EV Lac with a time resolution of 8 s and a spectroscopic resolution R ∼ 100. The observations were performed in May and August 2010 with a slitle...

    B. E. Zhilyaev, M. V. Andreev, A. V. Sergeev, V. N. Reshetnik… in Astronomy Letters (2012)

  5. No Access

    Article

    Photometry of the dwarf nova V503 Cyg in 2010. Orbital and other periods

    Photometric studies of the dwarf nova V503 Cygni have been conducted for 29 nights at the Crimean Astrophysical Observatory and at the Terskol Observatory during 2010. We detected none of the socalled “negativ...

    E. P. Pavlenko, D. A. Samsonov, O. I. Antonyuk, M. V. Andreev… in Astrophysics (2012)

  6. No Access

    Article

    The rotation period of comet 29P/Schwassmann-Wachmann 1 determined from the dust structures (Jets) in the coma

    The results of the photometric observations of comet 29P/Schwassmann-Wachmann 1 are analyzed. The comet demonstrates substantial activity at heliocentric distances larger than 5 AU, i.e., outside the water ice...

    A. V. Ivanova, V. L. Afanasiev, P. P. Korsun, A. R. Baranskii… in Solar System Research (2012)

  7. No Access

    Article

    Astrometric results of observations at Russian observatories of mutual occultations and eclipses of Jupiter’s Galilean satellites in 2009

    In 2009, in five Russian observatories photometric observations of Jupiter’s Galilean satellites during their mutual occultations and eclipses were carried out. Based on these observations, an original method ...

    N. V. Emelyanov, M. V. Andreev, A. A. Berezhnoi, A. S. Bekhteva… in Solar System Research (2011)

  8. No Access

    Article

    Searching for very-high-energy gamma-ray bursts from evaporating primordial black holes

    Temporal and energy characteristics of the very-high-energy gamma-ray bursts from evaporating primordial black holes have been calculated by assuming that the photospheric and chromospheric effects are negligi...

    V. B. Petkov, E. V. Bugaev, P. A. Klimai, M. V. Andreev… in Astronomy Letters (2008)