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http://hdl.handle.net/20.500.12386/26223
Title: | Twin SMBH candidates in the BCG of RBS 797 | Authors: | GITTI, MYRIAM GIROLETTI, MARCELLO Giovannini, Gabriele FERETTI, LUIGINA LIUZZO, Elisabetta Teodorina |
Issue Date: | 2015 | Journal: | POS PROCEEDINGS OF SCIENCE | Volume: | 12th European VLBI Network Symposium and Users Meeting - EVN 2014 | Number: | 230 | Abstract: | The radio-loud BCG at the center of the cool core cluster RBS 797 is known to exhibit a misalignment of its 5 GHz radio emission observed at different VLA resolutions, with the innermost kpc-scale jets being almost orthogonal to the radio lobes which extends for tens of kpc filling the X-ray cavities seen by Chandra. The different radio directions may be caused by rapid jet reorientation due to interaction with a secondary supermassive black hole (SMBH), or to the presence of two AGN, probably in a merging phase, which are emitting radio jets in different directions. We present the results of new 5 GHz observations performed with the EVN in May 2013. In particular, we detected two compact radio components, with a projected separation of 77 pc. We discuss two possible scenarios for the origin and nature of the EVN double source, showing that both interpretations are consistent with the presence of a SMBH binary system in the BCG of RBS 797.... | Conference Name: | 12th European VLBI Network Symposium and Users Meeting - EVN 2014 | Conference Place: | Cagliari, Italy | Conference Date: | 7-10 October, 2014 | URI: | http://hdl.handle.net/20.500.12386/26223 | URL: | https://pos.sissa.it/230/082/ | ISSN: | 1824-8039 | DOI: | 10.22323/1.230.0082 | Bibcode ADS: | 2015arXiv150402681G | Fulltext: | open |
Appears in Collections: | 3.01 Contributi in Atti di convegno |
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