Energy Absorption by the Dilaton Field around a Rotating Black Hole in a Binary System

TL;DR

This paper investigates how electromagnetic radiation from a star interacting with a rotating black hole can generate dilaton waves, providing potential astrophysical evidence for dilaton fields predicted by string theory.

Contribution

It introduces a model for energy transfer from stellar radiation to dilaton fields around rotating black holes, linking string theory predictions to observable astrophysical phenomena.

Findings

Energy transfer depends on radiation frequency

Dilaton wave production is significant near rotating black holes

Potential observable signatures for dilaton fields in astrophysics

Abstract

In this paper we analyze a binary system consisting of a star and a rotating black hole. The electromagnetic radiation emitted by the star interacts with the background of the black hole and stimulates the production of dilaton waves. We then estimate the energy transferred from the electromagnetic radiation of the star to the dilaton field as a function of the frequency. The resulting picture is a testable signature of the existence of dilaton fields as predicted by string theory in an astrophysical context.