DADHICH, Naresh, Arman TURSUNOV, Bobomurat AHMEDOV and Zdeněk STUCHLÍK. The distinguishing signature of magnetic Penrose process. Monthly Notices of the Royal Astronomical Society Letters. 2018, vol. 478, No 1, p. "L89"-"L94", 6 pp. ISSN 0035-8711. Available from: https://dx.doi.org/10.1093/mnrasl/sly073. |
Other formats:
BibTeX
LaTeX
RIS
@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 and Zdeněk STUCHLÍK. The distinguishing signature of magnetic Penrose process. \textit{Monthly Notices of the Royal Astronomical Society Letters}. 2018, vol.~478, No~1, p.~''L89''-''L94'', 6 pp. ISSN~0035-8711. Available from: https://dx.doi.org/10.1093/mnrasl/sly073.
|