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

In this work we discuss the technique of using molecular gas kinematics (orthe kinematics of any dynamically cold tracer) to estimate black hole masses.We present a figure of merit that will be useful in defining futureobservational campaigns, and discuss its implications. We show that, inprinciple, one can estimate black-hole masses using data that only resolvescales ~2 times the formal black hole sphere of influence, and confirm this byreanalysing lower resolution observations of the molecular gas around the blackhole in NGC4526. We go on to discuss the effect that angular resolution,velocity resolution and the depth of the galaxies potential have on the abilityto estimate black hole masses, and conclude by discussing prospects for thefuture. Once ALMA is fully operational, we find that over 10^5 local galaxieswith massive black holes will be observable, and that given sufficient surfacebrightness sensitivity one could measure the mass of a >4x10^8 Msun black holeat any redshift.

A figure of merit for black hole mass measurements with molecular gas