Title Simple relations from complex outflows: How the M-σ relation emerges in a multi-phase environment
Authors Tartėnas, Matas ; Zubovas, Kastytis ; Skuodas, Eimantas
DOI 10.1051/0004-6361/202556360
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Is Part of Astronomy & astrophysics.. EDP Sciences. 2026, vol. 705, art. no. A118, p. 1-13.. ISSN 0004-6361. eISSN 1432-0746
Keywords [eng] black hole physics ; ISM: general ; ISM: jets and outflows ; galaxies: active ; galaxies: general ; quasars: supermassive black holes
Abstract [eng] Context. The tight empirical M  −  σ relation between the mass of a supermassive black hole (SMBH) and the velocity dispersion of the host galaxy bulge is often interpreted as the result of self-regulation via active galactic nucleus (AGN) feedback. This picture is motivated by analytical and semi-analytical models in which momentum-driven AGN winds can expel the gas once the SMBH reaches a critical mass. However, these models typically assume idealised conditions: smooth gas distributions, spherical symmetry, and very efficient cooling of the shocked AGN wind. It is unclear whether this paradigm is applicable under more realistic conditions.
Published EDP Sciences
Type Journal article
Language English
Publication date 2026
CC license CC license description