The distinguishing signature of magnetic Penrose process

J 2018

The distinguishing signature of magnetic Penrose process

DADHICH, Naresh, Arman TURSUNOV, Bobomurat AHMEDOV a Zdeněk STUCHLÍK

Základní údaje

Originální název

The distinguishing signature of magnetic Penrose process

Autoři

DADHICH, Naresh (356 Indie), Arman TURSUNOV (860 Uzbekistán, garant, domácí), Bobomurat AHMEDOV (860 Uzbekistán) a Zdeněk STUCHLÍK (203 Česká republika, domácí)

Vydání

Monthly Notices of the Royal Astronomical Society Letters, 2018, 0035-8711

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10308 Astronomy

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Kód RIV

RIV/47813059:19240/18:A0000255

Organizační jednotka

Filozoficko-přírodovědecká fakulta v Opavě

DOI

http://dx.doi.org/10.1093/mnrasl/sly073

UT WoS

000450777200017

Klíčová slova anglicky

black hole physics; magnetic field; relativistic processes

Příznaky

Mezinárodní význam, Recenzováno

Návaznosti

GB14-37086G, projekt VaV. GJ16-03564Y, projekt VaV.

Změněno: 23. 4. 2020 14:13, RNDr. Arman Tursunov, Ph.D.

Anotace

V originále

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.

Citovat

DADHICH, Naresh, Arman TURSUNOV, Bobomurat AHMEDOV a Zdeněk STUCHLÍK. The distinguishing signature of magnetic Penrose process. Monthly Notices of the Royal Astronomical Society Letters. 2018, roč. 478, č. 1, s. "L89"-"L94", 6 s. ISSN 0035-8711. Dostupné z: https://dx.doi.org/10.1093/mnrasl/sly073.

@article{30309,
   author = {Dadhich, Naresh and Tursunov, Arman and Ahmedov, Bobomurat and Stuchlík, Zdeněk},
   article_number = {1},
   doi = {http://dx.doi.org/10.1093/mnrasl/sly073},
   keywords = {black hole physics; magnetic field; relativistic processes},
   language = {eng},
   issn = {0035-8711},
   journal = {Monthly Notices of the Royal Astronomical Society Letters},
   title = {The distinguishing signature of magnetic Penrose process},
   url = {https://academic.oup.com/mnrasl/article-abstract/478/1/L89/4990554?redirectedFrom=fulltext},
   volume = {478},
   year = {2018}
}

TY  - JOUR
ID  - 30309
AU  - Dadhich, Naresh - Tursunov, Arman - Ahmedov, Bobomurat - Stuchlík, Zdeněk
PY  - 2018
TI  - The distinguishing signature of magnetic Penrose process
JF  - Monthly Notices of the Royal Astronomical Society Letters
VL  - 478
IS  - 1
SP  - "L89"-"L94"
EP  - "L89"-"L94"
SN  - 00358711
KW  - black hole physics
KW  - magnetic field
KW  - relativistic processes
UR  - https://academic.oup.com/mnrasl/article-abstract/478/1/L89/4990554?redirectedFrom=fulltext
L2  - https://academic.oup.com/mnrasl/article-abstract/478/1/L89/4990554?redirectedFrom=fulltext
N2  - 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.
ER  -

DADHICH, Naresh, Arman TURSUNOV, Bobomurat AHMEDOV a Zdeněk STUCHLÍK. The distinguishing signature of magnetic Penrose process. \textit{Monthly Notices of the Royal Astronomical Society Letters}. 2018, roč.~478, č.~1, s.~''L89''-''L94'', 6 s. ISSN~0035-8711. Dostupné z: https://dx.doi.org/10.1093/mnrasl/sly073.

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