Skip to main content

Research Repository

Advanced Search

LLAMA: The MBH–σ⋆ relation of the most luminous local AGNs

Caglar, Turgay; Burtscher, Leonard; Brandl, Bernhard; Brinchmann, Jarle; Davies, Richard I.; Hicks, Erin K.S.; Koss, Michael; Lin, Ming-Yi; Maciejewski, Witold; Müller-Sánchez, Francisco; Riffel, Rogemar A.; Riffel, Rogério; Rosario, David J.; Schartmann, Marc; Schnorr-Müller, Allan; Taro Shimizu, T.; Storchi-Bergmann, Thaisa; Veilleux, Sylvain; de Xivry, Gilles Orban; Bennert, Vardha N.

LLAMA: The MBH–σ⋆ relation of the most luminous local AGNs Thumbnail


Authors

Turgay Caglar

Leonard Burtscher

Bernhard Brandl

Jarle Brinchmann

Richard I. Davies

Erin K.S. Hicks

Michael Koss

Ming-Yi Lin

Witold Maciejewski

Francisco Müller-Sánchez

Rogemar A. Riffel

Rogério Riffel

David J. Rosario

Marc Schartmann

Allan Schnorr-Müller

T. Taro Shimizu

Thaisa Storchi-Bergmann

Sylvain Veilleux

Gilles Orban de Xivry

Vardha N. Bennert



Abstract

Context. The MBH–σ⋆ relation is considered a result of coevolution between the host galaxies and their supermassive black holes. For elliptical bulge hosting inactive galaxies, this relation is well established, but there is still discussion concerning whether active galaxies follow the same relation. Aims. In this paper, we estimate black hole masses for a sample of 19 local luminous active galactic nuclei (AGNs; LLAMA) to test their location on the MBH–σ⋆ relation. In addition, we test how robustly we can determine the stellar velocity dispersion in the presence of an AGN continuum and AGN emission lines, and as a function of signal-to-noise ratio. Methods. Supermassive black hole masses (MBH) were derived from the broad-line-based relations for Hα, Hβ, and Paβ emission line profiles for Type 1 AGNs. We compared the bulge stellar velocity dispersion (σ⋆) as determined from the Ca II triplet (CaT) with the dispersion measured from the near-infrared CO (2-0) absorption features for each AGN and find them to be consistent with each other. We applied an extinction correction to the observed broad-line fluxes and we corrected the stellar velocity dispersion by an average rotation contribution as determined from spatially resolved stellar kinematic maps. Results. The Hα-based black hole masses of our sample of AGNs were estimated in the range 6.34 ≤ log MBH ≤ 7.75 M⊙ and the σ⋆CaT estimates range between 73 ≤ σ⋆CaT ≤ 227 km s−1. From the so-constructed MBH − σ⋆ relation for our Type 1 AGNs, we estimate the black hole masses for the Type 2 AGNs and the inactive galaxies in our sample. Conclusions. We find that our sample of local luminous AGNs is consistent with the MBH–σ⋆ relation of lower luminosity AGNs and inactive galaxies, after correcting for dust extinction and the rotational contribution to the stellar velocity dispersion.

Citation

Caglar, T., Burtscher, L., Brandl, B., Brinchmann, J., Davies, R. I., Hicks, E. K., …Bennert, V. N. (2020). LLAMA: The MBH–σ⋆ relation of the most luminous local AGNs. Astronomy & Astrophysics, 634, Article A114. https://doi.org/10.1051/0004-6361/201936321

Journal Article Type Article
Acceptance Date Dec 13, 2019
Online Publication Date Feb 19, 2020
Publication Date Feb 29, 2020
Deposit Date Mar 18, 2020
Publicly Available Date Mar 18, 2020
Journal Astronomy and astrophysics.
Print ISSN 0004-6361
Electronic ISSN 1432-0746
Publisher EDP Sciences
Peer Reviewed Peer Reviewed
Volume 634
Article Number A114
DOI https://doi.org/10.1051/0004-6361/201936321
Public URL https://durham-repository.worktribe.com/output/1267963

Files

Published Journal Article (24 Mb)
PDF

Copyright Statement
Caglar, Turgay, Burtscher, Leonard, Brandl, Bernhard, Brinchmann, Jarle, Davies, Richard I., Hicks, Erin K. S., Koss, Michael, Lin, Ming-Yi, Maciejewski, Witold, Müller-Sánchez, Francisco, Riffel, Rogemar A., Riffel, Rogério, Rosario, David J., Schartmann, Marc, Schnorr-Müller, Allan, Taro Shimizu, T., Storchi-Bergmann, Thaisa, Veilleux, Sylvain, de Xivry, Gilles Orban & Bennert, Vardha N. (2020). LLAMA: The MBH–σ⋆ relation of the most luminous local AGNs. Astronomy & Astrophysics 634: A114, reproduced with permission, © ESO.






You might also like



Downloadable Citations