On the relation of accretion rate and spin induced jet power in low luminosity AGN

TL;DR

This paper explores how black hole spin influences jet power in low-luminosity AGN, suggesting that rapidly spinning black holes produce more powerful jets, which could help identify high-spin black holes.

Contribution

It proposes a relation between black hole spin and jet power in low-luminosity AGN, highlighting the importance of spin in jet production at low accretion rates.

Findings

Jet power has a flatter dependence on accretion rate than accretion-dominated models.

Rapid black hole spin is necessary for efficient jet production in low-luminosity AGN.

High-spin black holes may be observable in radio-loud low-luminosity AGN.

Abstract

From Liu and Han (2014), the accretion-dominated jet power has a linear proportionality with the accretion rate, whereas the power law index is <=0.5 at lower accretion rate. Attributing the jet power in low accretion rate AGN to the black hole spin, it implies that the jet power has a flatter spectrum than the accretion-dominated jet versus the accretion rate. The black hole must be spinning rapidly for producing such jet power efficiently, and this may allow us to find high-spin black holes in the radio-loud low-luminosity AGN.