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Browsing by Author "Khorunzhev G.A."

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Optical Identification of Candidates for Active Galactic Nuclei Detected by the Mikhail Pavlinsky ART-XC Telescope Onboard the SRG Observatory during an All-Sky X-ray Survey

Zaznobin I.A.; Uskov G.S.; Sazonov S.Y.; Burenin R.A.; Medvedev P.S.; Khorunzhev G.A.; Lyapin A.R.; Krivonos R.A.; Filippova E.V.; Gilfanov M.R.; Sunyaev R.A.; Eselevich M.V.; Bikmaev I.F.; Irtuganov E.N.; Nikolaeva E.A. (2021)

Abstract: We present the results of our identification of eight objects from the preliminary catalogue of X-ray sources detected in the 4–12 keV energy band by the Mikhail Pavlinsky ART-XC telescope onboard the SRG observatory ...
Optical Spectroscopy of SRG/eROSITA Objects with 2.5-m Telescope at the Caucasus Mountain Observatory of the SAI MSU

Dodin A.V.; Potanin S.A.; Shatsky N.I.; Belinski A.A.; Atapin K.E.; Burlak M.A.; Egorov O.V.; Tatarnikov A.M.; Postnov K.A.; Belvedersky M.I.; Burenin R.A.; Gilfanov M.R.; Medvedev P.S.; Meshcheryakov A.V.; Sazonov S.Y.; Khorunzhev G.A.; Sunyaev R.A. (2020)

© 2020, Pleiades Publishing, Inc. Based on observations with the new transient double-beam spectrograph (TDS) at the 2.5-m telescope of the Caucasus Mountain Observatory of SAI MSU, we have determined the types and found ...
Spectroscopic Redshift Determination for a Sample of Distant Quasars Detected by the SRG Observatory Based on RTT-150 Observations. II

Bikmaev I.F.; Irtuganov E.N.; Nikolaeva E.A.; Sakhibullin N.A.; Gumerov R.I.; Sklyanov A.S.; Glushkov M.V.; Khamitov I.M.; Borisov V.D.; Burenin R.A.; Zaznobin I.A.; Krivonos R.A.; Lyapin A.R.; Medvedev P.S.; Meshcheryakov A.V.; Sazonov S.Y.; Sunyaev R.A.; Khorunzhev G.A.; Gilfanov M.R. (2021)

Abstract: Results of the spectroscopic observations at the 1.5-m Russian–Turkish telescope for another group of 12 X-ray sources discovered by the eROSITA telescope onboard the SRG space observatory and identified by the ...
Spectroscopic Redshift Measurements for Galaxy Clusters Detected in the Planck All-Sky Survey

Zaznobin I.A.; Burenin R.A.; Bikmaev I.F.; Khamitov I.M.; Khorunzhev G.A.; Lyapin A.R.; Eselevich M.V.; Afanasiev V.L.; Dodonov S.N.; Sunyaev R.A. (2020)

© 2020, Pleiades Publishing, Ltd. Abstract: We present the results of spectroscopic redshift measurements for galaxy clusters from the catalogue compiled previously from Planck all-sky survey data in combination with Sloan ...
Spectroscopic Redshift Measurements for Galaxy Clusters from the Planck Survey and Observations of These Clusters in the SRG/eROSITA Survey

Zaznobin I.A.; Burenin R.A.; Bikmaev I.F.; Khamitov I.M.; Khorunzhev G.A.; Lyapin A.R.; Eselevich M.V.; Lyskova N.S.; Medvedev P.S.; Gilfanov M.R.; Sunyaev R.A. (2021)

Abstract: We present the results of our spectroscopic redshift measurements for galaxy clusters detected previously from Planck all-sky survey data as well as Sloan Digital Sky Survey and WISE all-sky survey data. The ...
The First Distant X-ray Quasars (z ~ 4) among the Sources Discovered by the eROSITA Telescope of the SRG Orbital Observatory during a Deep Lockman Hole Survey

Khorunzhev G.A.; Meshcheryakov A.V.; Burenin R.A.; Lyapin A.R.; Medvedev P.S.; Sazonov S.Y.; Eselevich M.V.; Sunyaev R.A.; Gilfanov M.R. (2020)

© 2020, Pleiades Publishing, Inc. Abstract: During a deep extragalactic Lockman Hole sky survey with an area of 18.5 sq. deg, which was conducted when the SRG observatory was flying to the Lagrange point L2, the eROSITA ...

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Browsing by Author "Khorunzhev G.A."

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