Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.arcetri.astro.it/igm50/posters_all/feruglio.pdf Дата изменения: Wed Jun 17 11:44:49 2015 Дата индексирования: Sun Apr 10 02:59:36 2016 Кодировка: Поисковые слова: http astrokuban.info astrokuban

DO AGN WINDS ENRICH THE CGM/IGM?
Chiara Feruglio, Scuola Normale Superiore, Pisa
chiara.feruglio@sns.it Feruglio et al. 2015, arxiv:1503.01481


AGN-driven molecular outflow in Mrk 231
Powerful AGN-driven winds are seen in all gas phases, are massive and extended. Are they extended enough to contribute to the CGM/IGM metal enrichment? We mapped the prototypical powerful massive molecular outflow of Mrk 231 with ~400 pc spatial resolution by using IRAM/Plateau de Bure Interferometer.

Outflow

Outflow

Disk

velocity [km/s]

velocity [km/s]

400 pc


AGN-driven molecular outflow in Mrk 231
Powerful AGN-driven winds are seen in all gas phases, are massive and extended. Are they extended enough to contribute to the CGM/IGM metal enrichment? We mapped the prototypical powerful massive molecular outflow of Mrk 231 with ~400 pc spatial resolution by using IRAM/Plateau de Bure Interferometer.

Outflow

Outflow

Disk

velocity [km/s]

velocity [km/s]

400 pc


AGN-driven molecular outflow in Mrk 231
Powerful AGN-driven winds are seen in all gas phases, are massive and extended. Are they extended enough to contribute to the CGM/IGM metal enrichment? We mapped the prototypical powerful massive molecular outflow of Mrk 231 with ~400 pc spatial resolution by using IRAM/Plateau de Bure Interferometer.

The molecular CO(2-1) outflow has a

Outflow

Outflow

size of ~1 kpc , and extends in all directions around the nucleus, being more prominent along the south-west to north-east direction, suggesting a wideangle biconical geometry Disk

velocity [km/s]

No high velocity CO seen beyond ~1
kpc from the AGN. No contribution of AGN molecular outflows to IGM metal enrichment?

velocity [km/s]

400 pc


AGN-driven molecular outflow in Mrk 231
Mapping mass and energy rate of
the molecular outflow yields MOF = 500-1000 M /yr E

.

.

kin,OF

= 7-10 x 1043 erg/s

The maximum projected velocity

of the outflow is nearly constant out to ~1 kpc, implying that the density o f t h e o u t fl ow i n g m a t e r i a l mu s t decrease from the nucleus outwards as ~r-2

CO below critical density, ,

Integrated In annuli

not self shielded, photodissociated? Look for [CII] outflows on larger scales

The total kinetic energy of the
outflow is Ekin,OF ~ Edisk (i.e. the total energy of the molecular disk)