Properties of cold molecular gas in four type-1 active galaxies hosting outflows

Feedback from active galactic nuclei (AGN) has proven to be a critical ingredient in the current picture of galaxy assembly and growth. However, observational constraints on AGN-driven outflows face technical challenges and as a result, the cold molecular gas outflow properties of type-1 AGN are not well known. We present new IRAM NOrthern Extended Millimeter Array observations of CO(1-0) in F07599+6508, Z11598 - 0112, F13342 + 3932, and PG1440 + 356, all nearby type-1 AGN and ultraluminous infrared galaxies. We achieve spatial resolution of 1-3 arcsec corresponding to physical scales of 2-8 kpc and spectral resolution of 15-60 km s(-1), which enables updated CO(1-0) redshifts and a detailed morphological view of the cold molecular gas in these sources. The CO(1-0) luminosities, L'(CO), are in the range 2-12 x 10(9) K km s(-1) pc(2) and inferred molecular gas masses, M(H-2), are in the range 2-9 x 10(9) M-circle dot. The velocity fields and gas distributions do not unambiguously identify any of these sources as having outflows. However, Z11598-0112 has signs of infallingmaterial and after the subtraction of a rotating disc model PG 1440 + 356 shows complex kinematics in the residuals that may indicate an outflow or warped disc.

Automated summary

The study uses IRAM Northern Extended Millimeter Array observations of CO(1-0) in several nearby type-1 AGN and ultraluminous infrared galaxies, providing insights into the properties of cold molecular gas outflows in these sources.