Molecular gas in NUclei of GAlaxies (NUGA): VIII The Seyfert 2 NGC6574

TL;DR

This study uses high-resolution interferometric observations to analyze the molecular gas distribution and kinematics in the Seyfert 2 galaxy NGC6574, shedding light on gas-fueling mechanisms in active galactic nuclei.

Contribution

It provides detailed molecular gas maps at 100-150pc resolution in NGC6574, combining interferometric and single-dish data to study gas dynamics in an active galaxy.

Findings

Resolved an inner molecular gas disk of 300pc radius.

Combined interferometric and single-dish data for accurate flux measurement.

Enhanced understanding of gas distribution in Seyfert 2 galaxies.

Abstract

Within the frame of the NUclei of GAlaxies (NUGA) project, we have determined the distribution and kinematics of the molecular gas within the central kpc with high spatial resolution (100-150pc), for a sample of active galaxies. The goal is to study the gas-fueling mechanisms in AGN. We present interferometric observations of 12CO(1-0) and 12CO(2-1) line emission from the Seyfert2 galaxy NGC6574, obtained with the IRAM Plateau de Bure Interferometer (PdBI). These data have been combined with 30m mapping data in these lines to correct for the flux resolved by the interferometer. At an angular resolution of 0.7'' (about 110pc), the 12CO(2-1) emission is resolved into an inner disk with a radius of 300pc.