Test the growth models of black hole by jointing LIGO and Insight-HXMT observations

TL;DR

This paper tests two black hole growth models using combined LIGO and Insight-HXMT data, finding the stationary model inconsistent with observations, thus providing insights into black hole evolution.

Contribution

It introduces a joint observational approach to distinguish between stationary and time-dependent black hole growth models.

Findings

Stationary growth model is inconsistent with observational data.

Time-dependent growth model aligns better with observations.

Joint LIGO and Insight-HXMT data effectively tests black hole growth theories.

Abstract

The growth model of black hole is still a controversial topic. In the stationary metric, all in-falling matter must be accumulated outside the event horizon of the black hole, as clocked by a distant external observer. In the time-dependent metric, all in-falling matter can fall into the event horizon of the final black hole within very short time. We test these two growth models by joining LIGO and Insight-HXMT observations. We find the stationary model is inconsistent with LIGO and Insight-HXMT observations.