Journal
ASTROPHYSICAL JOURNAL
Volume 836, Issue 1, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.3847/1538-4357/836/1/130
Keywords
galaxies: active; galaxies: clusters: individual (Phoenix); radio lines: galaxies
Categories
Funding
- ERC [340442]
- Natural Sciences and Engineering Council of Canada
- Canadian Space Agency Space Science Enhancement Program
- NASA [NAS8-03060, HST-GO-13456, GO4-15122A]
- Fermi Research Alliance, LLC [De-AC02-07CH11359]
- STFC [ST/L00075X/1]
- Canada Research Chairs program
- Fonds de recherche Nature et technologies
- Australian Research Council's Discovery [DP150103208]
- United States Department of Energy
- Science and Technology Facilities Council [ST/N000927/1] Funding Source: researchfish
- Division Of Physics
- Direct For Mathematical & Physical Scien [1125897] Funding Source: National Science Foundation
- Office of Polar Programs (OPP)
- Directorate For Geosciences [1248097] Funding Source: National Science Foundation
- STFC [ST/P004636/1, ST/L005042/1] Funding Source: UKRI
Ask authors/readers for more resources
We report new ALMA observations of the CO(3-2) line emission from the 2.1 +/- 0.3*10(10)M(circle dot). molecular gas reservoir in the central galaxy of the Phoenix cluster. The cold molecular gas is fueling a vigorous starburst at a rate of 500-800M(circle dot)yr(-1) and powerful black hole activity in the forms of both intense quasar radiation and radio jets. The radio jets have inflated huge bubbles filled with relativistic plasma into the hot, X-ray atmospheres surrounding the host galaxy. The ALMA observations show that extended filaments of molecular gas, each 10-20 kpc long with a mass of several billion solar masses, are located along the peripheries of the radio bubbles. The smooth velocity gradients and narrow line widths along each filament reveal massive, ordered molecular gas flows around each bubble, which are inconsistent with gravitational free-fall. The molecular clouds have been lifted directly by the radio bubbles, or formed via thermal instabilities induced in low-entropy gas lifted in the updraft of the bubbles. These new data provide compelling evidence for close coupling between the radio bubbles and the cold gas, which is essential to explain the self-regulation of feedback. The very feedback mechanism that heats hot atmospheres and suppresses star formation may also paradoxically stimulate production of the cold gas required to sustain feedback in massive galaxies.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available