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DTSTART;TZID=Europe/Rome:20230228T113000
DTEND;TZID=Europe/Rome:20230228T123000
DTSTAMP:20260511T054743
CREATED:20230210T063549Z
LAST-MODIFIED:20230217T063652Z
UID:11272-1677583800-1677587400@www.oa-roma.inaf.it
SUMMARY:Connecting AGN and massive gas reservoir in protoclusters: the Chandra view of the Jackpot nebula at z=2
DESCRIPTION:High-redshift\, gas-rich galaxy protoclusters represent excellent laboratories\nfor investigating the effects of the environment on SMBH growth\, nuclear\nactivity and onset of AGN feedback in overdense regions.\nThe detection of enormous (>200 kpc) Ly_alpha nebulae (ELANe) in some of these\nsystems\, coupled with the presence of multiple AGN\, has called for an extensive\nfollow-up observational campaign\, including X-rays to properly census\nthe AGN population in these protocluster and\, hence\, determine their role in\npowering ELANe.\nIn this talk\, I will present an ongoing large Chandra program targeting some\nhigh-redshift ELANe; in particular\, I will focus on the properties of the\nJackpot nebula at z=2\, showing four X-ray detected AGN in the inner part and\nsome additional AGN associated with Lyman alpha emitters on larger scales.\nI will also report on the detection of diffuse X-ray emission in the inner\nregion of the nebula.
URL:https://www.oa-roma.inaf.it/event/colloquium-cristian-vignali/
LOCATION:Aula Gratton
CATEGORIES:Seminari
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