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Просмотр по автору "Irtuganov E."

Просмотр по автору "Irtuganov E."

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  • A Jupiter-mass planet around the K0 giant HD 208897 
    Yllmaz M.; Sato B.; Bikmaev I.; Selam S.; Izumiura H.; Keskin V.; Kambe E.; Melnikov S.; Galeev A.; Özavcl; Irtuganov E.; Zhuchkov R. (2017)
    © ESO, 2017. For over 10 years, we have carried out a precise radial velocity (RV) survey to find substellar companions around evolved G, K-type stars to extend our knowledge of planet formation and evolution. We performed ...
  • Additional spectroscopic redshift measurements for galaxy clusters from the first Planck catalogue 
    Vorobyev V.; Burenin R.; Bikmaev I.; Khamitov I.; Dodonov S.; Zhuchkov R.; Irtuganov E.; Mescheryakov A.; Melnikov S.; Semena A.; Tkachenko A.; Aghanim N.; Sunyaev R. (2016)
    © 2015, Pleiades Publishing, Inc.We present the results of spectroscopic redshift measurements for the galaxy clusters from the first all-sky Planck catalogue that have been mostly identified based on the optical observations ...
  • Confirmation of the Sublimation Activity of the Primitive Main-Belt Asteroids 779 Nina, 704 Interamnia, and 145 Adeona, as well as its Probable Spectral Signs on 51 Nemausa and 65 Cybele 
    Busarev V.; Shcherbina M.; Barabanov S.; Irsmambetova T.; Kokhirova G.; Khamroev U.; Khamitov I.; Bikmaev I.; Gumerov R.; Irtuganov E.; Mel’nikov S. (2019)
    © 2019, Pleiades Publishing, Inc. Abstract: This paper presents the results that confirm the sublimation activity at the perihelion of the primitive main-belt asteroids 779 Nina, 704 Interamnia, and 145 Adeona; this activity ...
  • Low mass stellar companions around four giant stars 
    Yilmaz M.; Bikmaev I.; Sato B.; Selam S.; Galeev A.; Keskin V.; Izumiura H.; Irtuganov E.; Kambe E.; Özavci I.; Melnikov S.; Zhuchkov R.; Okada N. (2015)
    We present three low-mass and one solar mass companions found around four intermediate-mass giants HD1695, HD120235, HD145316 and HD200004 from precise radial velocity measurements using the 1.5 m Russian-Turkish Telescope ...
  • Modelling of 35-d superorbital cycle of B and V light curves of IMXB HZ Her/Her X-1 
    Kolesnikov D.A.; Shakura N.I.; Postnov K.A.; Volkov I.M.; Bikmaev I.F.; Irsmambetova T.R.; Staubert R.; Wilms J.; Irtuganov E.; Golysheva P.Y.; Shugarov S.Y.; Nikolenko I.V.; Trunkovsky E.M.; Schönherr G.; Schwope A.; Klochkov D. (2020)
    © 2020 The Author(s). The X-ray binary Her X-1 consists of an accreting neutron star and the optical component HZ Her. The 35-d X-ray superorbital variability of this system is known, since its discovery in 1972 by the ...
  • PG 1316+678: A young pre-cataclysmic binary with weak reflection effects 
    Shimansky V.; Borisov N.; Bikmaev I.; Sakhibullin N.; Shimanskaya N.; Spiridonova O.; Irtuganov E. (2013)
    The PG 1316+678 star is classified as a pre-cataclysmic binary, as is evidenced by its photometric and spectroscopic observations. Its orbital period is determined to be Porb = 3. 3803d, which coincides with the photometric ...
  • Spectroscopic study of the optical counterpart to the fast X-ray transient IGR J17544-2619 based on observations at the 1.5-m RTT-150 telescope 
    Bikmaev I.; Nikolaeva E.; Shimansky V.; Galeev A.; Zhuchkov R.; Irtuganov E.; Melnikov S.; Sakhibullin N.; Grebenev S.; Sharipova L. (2017)
    © 2017, Pleiades Publishing, Inc. We present the results of our long-term photometric and spectroscopic observations at the Russian–Turkish RTT-150 telescope for the optical counterpart to one of the best-known sources, ...
  • SRG/eROSITA uncovers the most X-ray luminous quasar at z > 6 
    Medvedev P.; Sazonov S.; Gilfanov M.; Burenin R.; Khorunzhev G.; Meshcheryakov A.; Sunyaev R.; Bikmaev I.; Irtuganov E. (2020)
    © 2020 The Author(s). We report the discovery of X-ray emission from CFHQS J142952+544717, the most distant known radio-loud quasar at z = 6.18, on 2019 December 10-11 with the eROSITA telescope on board the SRG satellite ...
  • The 35-day cycle in the X-ray binary HZ Her/Her X-1 
    Kolesnikov D.; Shakura N.; Postnov K.; Volkov I.; Bikmaev I.; Irsmambetova T.; Staubert R.; Wilms J.; Irtuganov E.; Shurygin P.; Golysheva P.; Shugarov S.; Nikolenko I.; Trunkovsky E.; Schonherr G.; Schwope A.; Klochkov D. (2020)
    © 2020 Astronomical Institute, Slovak Academy of Sciences. We present the results of modelling the 35-day superorbital changes in the B and V lightcurves and X-ray flux of HZ Her/Her X-1. The model is implemented in a ...

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