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- Title
Spectroscopic Redshift Determination for a Sample of Distant Quasars Detected by the SRG Observatory Based on RTT-150 Observations. I.
- Authors
Bikmaev, I. F.; Irtuganov, E. N.; Nikolaeva, E. A.; Sakhibullin, N. A.; Gumerov, R. I.; Sklyanov, A. S.; Glushkov, M. V.; Borisov, V. D.; Burenin, R. A.; Zaznobin, I. A.; Krivonos, R. A.; Lyapin, A. R.; Medvedev, P. S.; Meshcheryakov, A. V.; Sazonov, S. Yu.; Sunyaev, R. A.; Khorunzhev, G. A.; Gilfanov, M. R.
- Abstract
Results of the first spectroscopic observations at the 1.5-m Russian–Turkish telescope for the X-ray sources discovered by the eROSITA telescope onboard the SRG space observatory and identified by the SRGz machine learning system as candidates for distant X-ray quasars are presented. Seven objects have been confirmed as quasars at redshifts and two sources, which were included in the program of optical observations aimed at testing and adjusting SRGz and had a significant uncertainty in the photometric redshift, have turned out to be Seyfert galaxies at .
- Subjects
QUASARS; SEYFERT galaxies; REDSHIFT; OBSERVATORIES; X-ray telescopes; ACTIVE galactic nuclei
- Publication
Astronomy Letters, 2020, Vol 46, Issue 10, p645
- ISSN
1063-7737
- Publication type
Article
- DOI
10.1134/S1063773720100047