遇见数据集

Molecular Gas Flows in Active Galaxies of the Local Volume

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ESA Earth Online2026-06-22 收录
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Mechanical feedback from AGNdriven winds has been purported to play a central role in the evolution of galaxies. However, past searches for AGN winds have been heavily biased, selecting the brightest sources in bands affected either by obscuration and/or contamination from the host galaxy light, and incomplete, probing only the ionized gas phase of these winds. Remarkably, recent results from our group and others have demonstrated that the neutral and molecular components of AGNdriven winds often dominate the mass, and thus dynamics and energetics, of these winds. To address these limitations, we have been conducting an extensive multiwavelength campaign, including crucial spatially resolved optical neutralgas absorption spectroscopy, of all AGN detected in the very hard Xrays (14195 keV) by SwiftBAT. The SwiftBAT survey is the least biased all sky survey for AGN with respect to host galaxy properties and obscuration in the lineofsight, and thus it is superior to past surveys for understanding the role of AGNdriven winds in galaxies. Here we request 35.3 hrs to obtain highS/N OH 119 um spectra of all BATAGN within the Local Volume to characterize molecular gas in/outflows in these systems. A distance limit of <50 Mpc is selected to provide the best possible scale (<200 pc/arcsec) while also sampling the AGN luminosity function up to quasarlike values without favoring IRbright systems due to the need for highS/N data at virgul120 um. We will look for trends between the properties of OH 119 um (incidence of absorption, kinematics, column densities), the AGN (e.g., luminosity, accretion rate), and the host (e.g., morphology, star formation rate, extinction). In cases of kinematic match between OH features and spatially resolved neutralgas clouds, we will be able to infer the masses and kinetic energies of these flows. Measured blueshifted velocities in excess of virgul10 truncated!, Ple [truncated!, Please see actual data for full text]

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European Space Agency
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