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DTSTART:20180325T010000
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DTSTART;TZID=Europe/Rome:20190305T114500
DTEND;TZID=Europe/Rome:20190305T124500
DTSTAMP:20260413T214326
CREATED:20180728T055834Z
LAST-MODIFIED:20180728T055834Z
UID:4271-1551786300-1551789900@www.oa-roma.inaf.it
SUMMARY:colloquium - Francesco Massaro
DESCRIPTION:
URL:https://www.oa-roma.inaf.it/event/colloquium-francescao-massaro/
LOCATION:Aula Gratton
CATEGORIES:Seminari
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Rome:20190305T114500
DTEND;TZID=Europe/Rome:20190305T124500
DTSTAMP:20260413T214326
CREATED:20180728T055834Z
LAST-MODIFIED:20190223T062348Z
UID:4761-1551786300-1551789900@www.oa-roma.inaf.it
SUMMARY:Flipping a fair coin to decipher the large-scale environment of radio galaxies
DESCRIPTION:The role played by the large-scale environment in the nuclear activity of radio galaxies  is still not completely understood. Accretion mode\, jet power\, and galaxy evolution are connected with their large-scale environment on scales from tens to hundreds of kiloparsecs. I am presenting a detailed statistical analysis of the large-scale environment for two samples of radio galaxies in the local Universe (i.e.\, up to redshift 0.15).\nI will discuss on a direct search of galaxy-rich environments around radio galaxies by using them as beacons. To carry out this study a new method\, that does not appear to suffer cosmological biases and artifacts\, as other algorithms\, was developed. I conclude that\, despite their radio morphological classification (FRI versus FRII) and/or their optical classification (high- or low-excitation radio galaxy\, i.e.\, HERG or LERG)\, radio galaxies in the local universe tend to live in galaxy-rich large-scale environments that have similar characteristics and richness. I will then show that properties of large-scale environments of both FRIs and FRIIs do not depend by the property of central radio galaxy. Finally\, I will provide an estimate of the X-ray parameters that can be derived from optical observations to plan future follow up campaigns.
URL:https://www.oa-roma.inaf.it/event/colloquium-francescao-massaro-2/
LOCATION:Aula Gratton
CATEGORIES:Seminari
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