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DTSTART;TZID=Europe/Rome:20171024T114500
DTEND;TZID=Europe/Rome:20171024T124500
DTSTAMP:20260506T105824
CREATED:20170728T201742Z
LAST-MODIFIED:20170728T201742Z
UID:3356-1508845500-1508849100@www.oa-roma.inaf.it
SUMMARY:Observations of Fast Outflows in Active Galactic Nuclei
DESCRIPTION:The presence of outflows in many Active Galaxies has been firmly established through X-ray spectroscopy over the last two decades.\nThese outflows range from the low velocity warm absorbers commonly seen in many Seyfert galaxies\, through to the\nso called ultra fast outflows\, where the outflow velocities can reach a significant fraction of c.\nUltra fast outflows were first discovered in 2003\, from the presence of highly blue-shifted absorption lines from the X-ray spectra of quasars and AGN. The observational evidence for fast outflows will be reviewed\, as well as their wider properties and potential for feedback into the host galaxies of AGN. New data from large programs on the fast outflows\, such as PDS 456 and PG 1211+143\, will be shown\, the former showing a fast wide angle outflow\, while both AGN show highly variable outflows which may respond to the ionising continuum.\nThe evidence for fast soft X-ray absorption as well as the possible driving mechanisms of the winds will also be discussed.
URL:https://www.oa-roma.inaf.it/event/seminar-by-james-reeves/
LOCATION:Aula Gratton
CATEGORIES:Seminari
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Rome:20171024T114500
DTEND;TZID=Europe/Rome:20171024T124500
DTSTAMP:20260506T105824
CREATED:20170728T201742Z
LAST-MODIFIED:20170728T201742Z
UID:4715-1508845500-1508849100@www.oa-roma.inaf.it
SUMMARY:Observations of Fast Outflows in Active Galactic Nuclei
DESCRIPTION:The presence of outflows in many Active Galaxies has been firmly established through X-ray spectroscopy over the last two decades.\nThese outflows range from the low velocity warm absorbers commonly seen in many Seyfert galaxies\, through to the\nso called ultra fast outflows\, where the outflow velocities can reach a significant fraction of c.\nUltra fast outflows were first discovered in 2003\, from the presence of highly blue-shifted absorption lines from the X-ray spectra of quasars and AGN. The observational evidence for fast outflows will be reviewed\, as well as their wider properties and potential for feedback into the host galaxies of AGN. New data from large programs on the fast outflows\, such as PDS 456 and PG 1211+143\, will be shown\, the former showing a fast wide angle outflow\, while both AGN show highly variable outflows which may respond to the ionising continuum.\nThe evidence for fast soft X-ray absorption as well as the possible driving mechanisms of the winds will also be discussed.
URL:https://www.oa-roma.inaf.it/event/seminar-by-james-reeves-2/
LOCATION:Aula Gratton
CATEGORIES:Seminari
END:VEVENT
END:VCALENDAR