English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We examine the intrinsic scatter in the correlation between black hole massesand their host bulge masses, and find that it cannot be accounted for bymergers alone. A simple merger scenario of small galaxies leads to aproportionality relation between the late-time black hole and bulge masses,with intrinsic scatter (in linear scale) increasing along the ridge line of therelation as the square root of the mass. By examining a sample of 86 galaxieswith well measured black hole masses, we find that the intrinsic scatterincreases with mass more rapidly than expected from the merger-only scenario.We discuss the possibility that the feedback mechanism that operated duringgalaxy formation involved the presence of a cooling flow.

The limited role of mergers in the black hole to bulge mass relation