The distinguishing signature of magnetic Penrose process
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19240%2F18%3AA0000255" target="_blank" >RIV/47813059:19240/18:A0000255 - isvavai.cz</a>
Result on the web
<a href="https://academic.oup.com/mnrasl/article-abstract/478/1/L89/4990554?redirectedFrom=fulltext" target="_blank" >https://academic.oup.com/mnrasl/article-abstract/478/1/L89/4990554?redirectedFrom=fulltext</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1093/mnrasl/sly073" target="_blank" >10.1093/mnrasl/sly073</a>
Alternative languages
Result language
angličtina
Original language name
The distinguishing signature of magnetic Penrose process
Original language description
In this Letter, we wish to point out that the distinguishing feature of magnetic Penrose process (MPP) is its super high-efficiency exceeding 100 per cent (which was established in mid 1980s for discrete particle accretion) of extraction of rotational energy of a rotating black hole electromagnetically for a magnetic field of milli Gauss order. Another similar process, which is also driven by the electromagnetic field, is Blandford-Znajek mechanism (BZ) that could be envisaged as high magnetic field limit MPP as it requires threshold magnetic field of order 10^4 G. Recent simulation studies of fully relativistic magnetohydrodynamic (MHD) flows have borne out super high-efficiency signature of the process for high magnetic field regime; viz BZ. We would like to make a clear prediction that similar simulation studies of MHD flows for low magnetic field regime, where BZ would be inoperative, would also have super efficiency.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Monthly Notices of the Royal Astronomical Society
ISSN
0035-8711
e-ISSN
1365-2966
Volume of the periodical
478
Issue of the periodical within the volume
1
Country of publishing house
GB - UNITED KINGDOM
Number of pages
6
Pages from-to
„L89“-„L94“
UT code for WoS article
000450777200017
EID of the result in the Scopus database
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