Browsing by Author "Fabrika S."

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  • Muslimov E.; Valyavin G.; Fabrika S.; Pavlycheva N. (2017)
    © 2017 Optical Society of America.In the present article we consider an accurate modeling of a spectrograph with a cascade of volume-phase holographic gratings. The proposed optical scheme allows us to detect spectra in ...
  • Revnivtsev M.; Fabrika S.; Abolmasov P.; Postnov K.; Bikmaev I.; Burenin R.; Pavlinsky M.; Sunyaev R.; Khamitov I.; Sakhibullin N. (2006)
    We present broad band power spectra of variations of SS433 in radio, optical and X-ray spectral bands. We show that at frequencies lower than 10 -5 Hz the source demonstrates the same variability pattern in all these bands. ...
  • Muslimov E.; Valyavin G.; Fabrika S.; Musaev F.; Galazutdinov G.; Pavlycheva N.; Emelianov E. (2018)
    © 2018. The Astronomical Society of the Pacific. All rights reserved. Printed in the U.S.A. We present the results of an experimental study of an advanced moderate-resolution spectrograph based on a cascade of narrow-band ...
  • Revnivtsev M.; Burenin R.; Fabrika S.; Postnov K.; Bikmaev I.; Pavlinsky M.; Sunyaev R.; Khamitov I.; Aslan Z. (2004)
    We present results of first simultaneous optical and X-ray observations of peculiar binary system SS433. For the first time, chaotic variability of SS433 in the optical spectral band (R band) on time scales as small as ...
  • Cherepashchuk A.; Sunyaev R.; Fabrika S.; Postnov K.; Molkov S.; Barsukova E.; Antokhina E.; Irsmambetova T.; Panchenko I.; Seifina E.; Shakura N.; Timokhin A.; Bikmaev I.; Sakhibullin N.; Aslan Z.; Khamitov I.; Pramsky A.; Sholukhova O.; Gnedin Y.; Arkharov A.; Larionov V. (2005)
    Results of simultaneous INTEGRAL and optical observations of the galactic microquasar SS433 in May 2003 and INTEGRAL/RXTE observations in March 2004 are presented. Persistent precessional variability with a maximum to ...
  • Tartaglia L.; Pastorello A.; Sullivan M.; Baltay C.; Rabinowitz D.; Nugent P.; Drake A.; Djorgovski S.; Gal-Yam A.; Fabrika S.; Barsukova E.; Goranskij V.; Valeev A.; Fatkhullin T.; Schulze S.; Mehner A.; Bauer F.; Taubenberger S.; Nordin J.; Valenti S.; Howell D.; Benetti S.; Cappellaro E.; Fasano G.; Elias-Rosa N.; Barbieri M.; Bettoni D.; Harutyunyan A.; Kangas T.; Kankare E.; Martin J.; Mattila S.; Morales-Garoffolo A.; Ochner P.; Rebbapragada U.; Terreran G.; Tomasella L.; Turatto M.; Verroi E.; Woźniak P. (2016)
    © 2016 The Authors.We report photometric and spectroscopic observations of the optical transient LSQ13zm. Historical data reveal the presence of an eruptive episode (that we label as '2013a') followed by a much brighter ...
  • Darnley M.; Henze M.; Bode M.; Hachisu I.; Hernanz M.; Hornoch K.; Hounsell R.; Kato M.; Ness J.; Osborne J.; Page K.; Ribeiro V.; Rodríguez-Gil P.; Shafter A.; Shara M.; Steele I.; Williams S.; Arai A.; Arcavi I.; Barsukova E.; Boumis P.; Chen T.; Fabrika S.; Figueira J.; Gao X.; Gehrels N.; Godon P.; Goranskij V.; Harman D.; Hartmann D.; Hosseinzadeh G.; Horst J.; Itagaki K.; José J.; Kabashima F.; Kaur A.; Kawai N.; Kennea J.; Kiyota S.; Kučáková H.; Lau K.; Maehara H.; Naito H.; Nakajima K.; Nishiyama K.; O'Brien T.; Quimby R.; Sala G.; Sano Y.; Sion E.; Valeev A.; Watanabe F.; Watanabe M.; Williams B.; Xu Z. (2016)
    © 2016. The American Astronomical Society. All rights reserved.The Andromeda Galaxy recurrent nova M31N 2008-12a had been observed in eruption 10 times, including yearly eruptions from 2008 to 2014. With a measured recurrence ...
  • Muslimov E.; Pavlycheva N.; Valyavin G.; Fabrika S. (2016)
    © 2016, Pleiades Publishing, Ltd.We present a new scheme of a moderate-resolution spectrograph based on a cascade of serial holographic gratings each of which produces an individual spectrum with a resolution of about 6000 ...
  • Sholukhova O.; Bizyaev D.; Fabrika S.; Sarkisyan A.; Malanushenko V.; Valeev A. (2015)
    © 2015 The Authors. We performed spectroscopy of five luminous blue variable (LBV) candidates and two known LBV stars (AE And andVar A-1) inM31.We obtained the same-epoch near-infrared (NIR) and optical spectra of these ...
  • Shidatsu M.; Ueda Y.; Fabrika S. (2017)
    © 2017. The American Astronomical Society. All rights reserved.We report on an X-ray observing campaign of the ultraluminous X-ray source IC 342 X-1 with NuSTAR and Swift in 2016 October, in which we captured the very ...
  • Shimansky V.; Mitrofanova A.; Borisov N.; Fabrika S.; Galeev A. (2016)
    © 2016, Pleiades Publishing, Ltd.We present the analysis of the optical radiation of the young pre-cataclysmic variable TW Crv. Spectroscopic and photometric observations were obtained at the SAO RAS 6-m BTA telescope and ...
  • Valeev A.; Sholukhova O.; Fabrika S. (2014)
    Copyright © International Astronomical Union 2015. We study spectra of two bona fide LBV stars in M31: AF And and Var 15. The spectra were obtained with the 6-m telescope (Russia) from 2005 to 2012. The model spectra were ...
  • Sarkisyan A.; Vinokurov A.; Solovieva Y.; Sholukhova O.; Kostenkov A.; Fabrika S. (2017)
    © 2017, Pleiades Publishing, Ltd. We present a code for the optimal extraction of long-slit 2D spectra in crowded stellar fields. Its main advantage and difference from the existing spectrum extraction codes is the presence ...
  • Medvedev A.; Kholtygin A.; Hubrig S.; Schöller M.; Fabrika S.; Valyavin G.; Chountonov G.; Milanova Y.; Tsiopa O.; Yakovleva V. (2017)
    © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim We review the measurements of magnetic fields of OBA stars. Based on these data, we confirm that magnetic fields are distributed according to a lognormal law with mean ...
  • Fabrika S.; Ueda Y.; Vinokurov A.; Sholukhova O.; Shidatsu M. (2015)
    © 2015 Macmillan Publishers Limited. All rights reserved. The black hole mass and accretion rate in ultraluminous X-ray sources (ULXs) in external galaxies, whose X-ray luminosities exceed those of the brightest black holes ...
  • Kurtenkov A.; Pessev P.; Tomov T.; Barsukova E.; Fabrika S.; Vida K.; Hornoch K.; Ovcharov E.; Goranskij V.; Valeev A.; Molnár L.; Sárneczky K.; Kostov A.; Nedialkov P.; Valenti S.; Geier S.; Wiersema K.; Henze M.; Shafter A.; Muñoz Dimitrova R.; Popov V.; Stritzinger M. (2015)
    © ESO 2015. Context. M31N 2015-01a (or M31LRN 2015) is a red nova that erupted in January 2015 - the first event of this kind observed in M 31 since 1988. Very few similar events have been confirmed as of 2015. Most of ...
  • Atapin K.; Fabrika S.; Medvedev A.; Vinokurov A. (2015)
    © 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. We study a stochastic variability of SS 433 in the 10-4-5 × 10-2 Hz frequency range based on RXTE data, and on simultaneous ...
  • Atapin K.; Fabrika S. (2016)
    © 2016, Pleiades Publishing, Inc.We study the X-ray variability of SS 433 based on data from the ASCA observatory and the MAXI and RXTE/ASM monitoring missions. Based on the ASCA data, we have constructed the power spectrum ...

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