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Angle-resolved Photoemission Spectroscopy At Ultra-low Temperatures

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Published on: October 9, 2012

Detecting energy emissions from a rotating black hole.

Maurice H P M van Putten¹, Amir Levinson

¹Massachusetts Institute of Technology, Room 2-378, Cambridge, MA 02139, USA. mvp@schauder.mit.edu

Science (New York, N.Y.)

|February 23, 2002

Summary

Black hole-torus systems release rotational energy via outflows and gravitational radiation. Gravitational waves from these systems can help identify Kerr black holes.

Area of Science:

Astrophysics
Black Hole Physics
Gravitational Wave Astronomy

Background:

Black holes surrounded by accretion tori are sites of significant energy release.
Understanding these energy release mechanisms is crucial for astrophysical phenomena.

Purpose of the Study:

To determine the channels of rotational energy release from black hole-torus systems.
To investigate the potential for detecting these phenomena with gravitational wave experiments.

Main Methods:

Analysis of energy release through different channels including outflows and gravitational radiation.
Modeling the torus's angular velocity relative to the black hole.

Main Results:

A minor fraction of energy is released in baryon-poor outflows, potentially linked to gamma-ray bursts.

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A major fraction (eta/2) is released as gravitational radiation by the torus.

Remaining energy is released via torus winds, thermal emissions, and neutrino emissions.

Conclusions:

Gravitational radiation from black hole-torus systems is detectable by gravitational wave experiments.
This radiation offers a method for identifying Kerr black holes in the universe.