High molecular gas content and star formation rates in local galaxies
  that host quasars, outflows and jets
  We use a sample of powerful z~0.1 type 2 quasars ('obscured';
log[L(AGN)/erg/s]>~45), which host kiloparsec-scale ionized outflows and jets,
to identify possible signatures of AGN feedback on the total molecular gas
reservoirs of their host galaxies. Specifically, we present Atacama Pathfinder
EXperiment (APEX) observations of the CO(2-1) transition for nine sources and
the CO(6-5) for a subset of three. We find that the majority of our sample
reside in starburst galaxies (average specific star formation rates of
1.7/Gyr), with the seven CO-detected quasars also having large molecular gas
reservoirs (average Mgas = 1.3x10^10Msun), even though we had no pre-selection
on the star formation or molecular gas properties. Despite the presence of
quasars and outflows, we find that the molecular gas fractions (Mgas/Mstar =
0.1-1.2) and depletion times (Mgas/SFR = 0.16-0.95Gyr) are consistent with
those expected for the overall galaxy population with matched stellar masses
and specific star formation rates. Furthermore, for at least two of the three
targets with the required measurements, the CO(6-5)/CO(2-1) emission-line
ratios are consistent with star formation dominating the CO excitation over
this range of transitions. The targets in our study represent a gas-rich phase
of galaxy evolution with simultaneously high levels of star formation and
nuclear activity; furthermore, the jets and outflows do not have an immediate
appreciable impact on the global molecular gas reservoirs.
