Kazan (Volga region) Federal University, KFU
KAZAN
FEDERAL UNIVERSITY
 
OBSERVATION OF A VERY MASSIVE GALAXY CLUSTER AT Z = 0.76 IN THE SRG/EROSITA ALL-SKY SURVEY
Form of presentationArticles in international journals and collections
Year of publication2021
Языканглийский
  • Bikmaev Ilfan Fyaritovich, author
  • Bibliographic description in the original language Burenin R.A, Bikmaev I.F, Gilfanov M.R, Observation of a Very Massive Galaxy Cluster at z = 0.76 in the SRG/eROSITA All-Sky Survey//Astronomy Letters. - 2021. - Vol.47, Is.7. - P.443-453.
    Annotation The results of multiwavelength observations of the very massive galaxy cluster SRGe CL2305.2-2248 detected in X-rays during the first SRG/eROSITA all-sky survey are discussed. This galaxy cluster has also been detected previously in the millimeter band in the South Pole Telescope (SPT-CL J2305-2248) and Atacama Cosmology Telescope (ACT-CL J2305.1-2248) surveys through the observation of the Sunyaev-Zeldovich effect. The spectroscopic redshift has been measured at the 6-m BTA telescope, z=0.7573 . In addition, deep photometric measurements of galaxies have been performed at the Russian-Turkish 1.5-m telescope (RTT-150). The mass of the cluster is estimated from the eROSITA data to be M500=(9.0?2.5)×1014M⊙ . We show that this cluster is among several tens of the most massive clusters in the observable Universe and among only a few most massive galaxy clusters at z>0.6 .
    Keywords galaxy clusters; sky surveys
    The name of the journal Astronomy Letters
    URL https://link.springer.com/article/10.1134%2FS1063773721070045
    Please use this ID to quote from or refer to the card https://repository.kpfu.ru/eng/?p_id=260993&p_lang=2

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