WISDOM Project -- XVII. Beam-by-beam Properties of the Molecular Gas in Early-type Galaxies
(2023)
Velocity Dispersion σ aper Aperture Corrections as a Function of Galaxy Properties from Integral-field Stellar Kinematics of 10,000 MaNGA Galaxies
Chinese Astronomy and Astrophysics IOP Publishing 23:8 (2023) 085001
A complete catalogue of broad-line AGNs and double-peaked emission lines from MaNGA integral-field spectroscopy of 10K galaxies: stellar population of AGNs, supermassive black holes, and dual AGNs
Monthly Notices of the Royal Astronomical Society Oxford University Press 524:4 (2023) 5827-5843
Abstract:
We analyse the integral field spectroscopy data for the ≈10 000 galaxies in final data release of the MaNGA survey. We identify 188 galaxies for which the emission lines cannot be described by single Gaussian components. These galaxies can be classified into (1) 38 galaxies with broad HαH and [O III] λ5007 lines, (2) 101 galaxies with broad HαH lines but no broad [O III] λ5007 lines, and (3) 49 galaxies with double-peaked narrow emission lines. Most of the broad-line galaxies are classified as active galactic nuclei (AGNs) from their line ratios. The catalogue helps us further understand the AGN-galaxy coevolution through the stellar population of broad-line region host galaxies and the relation between broad lines’ properties and the host galaxies’ dynamical properties. The stellar population properties (including mass, age, and metallicity) of broad-line host galaxies suggest there is no significant difference between narrow-line Seyfert-2 galaxies and Type-1 AGNs with broad HαH lines. We use the broad-HαH line width and luminosity to estimate masses of black hole in these galaxies, and test the MBH–σe relation in Type-1 AGN host galaxies. Furthermore, we find three dual AGN candidates supported by radio images from the VLA FIRST survey. This sample may be useful for further studies on AGN activities and feedback processes.A fundamental plane of black hole accretion at millimetre wavelengths
(2023)
The massive relic galaxy NGC 1277 is dark matter deficient : From dynamical models of integral-field stellar kinematics out to five effective radii
Astronomy and Astrophysics EDP Sciences 675 (2023) A143