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  Magnetoacoustic and Alfvénic black holes

Gheibi, A., Safari, H., & Innes, D. (2018). Magnetoacoustic and Alfvénic black holes. The European Physical Journal C: Particles and Fields, 78: 662. doi:10.1140/epjc/s10052-018-6109-1.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0003-C28A-6 Version Permalink: http://hdl.handle.net/21.11116/0000-0003-C555-F
Genre: Journal Article
Other : Magnetoacoustic and Alfvenic black holes

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 Creators:
Gheibi, A., Author
Safari, H., Author
Innes, Davina1, Author              
Affiliations:
1Department Sun and Heliosphere, Max Planck Institute for Solar System Research, Max Planck Society, ou_1832289              

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 Abstract: We introduce analogue black holes (BHs) based on ideal magnetohydrodynamic equations. Similar to acoustic BHs, which trap phonons and emit Hawking radiation (HR) at the sonic horizon where the flow speed changes from super- to sub-sonic, in the horizon of magnetoacoustic and Alfvénic BHs, the magnetoacoustic and Alfvén waves will be trapped and emit HR made of quantized vibrations similar to phonons which we call magnephonons and Alphonons. We proposed that magnetoacoustic and Alfvénic BHs may be created in the laboratory using a tube with variable cross section embedded in a uniform magnetic field, and a super-magnetoacoustic or a super-Alfvénic flow. We show that the Hawking temperature for both BHs is a function of the background magnetic field, number density of fluid, and radius of the tube. For a typical setup, the temperature is estimated to be about 0.0266 K.

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Language(s): eng - English
 Dates: 2018
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1140/epjc/s10052-018-6109-1
 Degree: -

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Title: The European Physical Journal C: Particles and Fields
  Abbreviation : EPJ C
Source Genre: Journal
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Affiliations:
Publ. Info: Berlin, Heidelberg : Springer
Pages: - Volume / Issue: 78 Sequence Number: 662 Start / End Page: - Identifier: ISSN: 1434-6044
CoNE: https://pure.mpg.de/cone/journals/resource/954925624278_3