High efficiency of collisional Penrose process requires heavy particle production
K Ogasawara, T Harada, U Miyamoto - Physical Review D, 2016 - APS
… We present an analytic formulation to investigate the collisional Penrose process under the
assumption that particles follow geodesics in the equatorial plane and two particles collide …
assumption that particles follow geodesics in the equatorial plane and two particles collide …
Maximum efficiency of the collisional Penrose process
OB Zaslavskii - Physical Review D, 2016 - APS
… We examine the efficiency η of the collisional Penrose process. There are two relevant
cases here: a particle falling into a black hole after collision (i) is heavy or (ii) has a finite mass. …
cases here: a particle falling into a black hole after collision (i) is heavy or (ii) has a finite mass. …
[引用][C] The efficiency of the Penrose process
A Kovetz, T Piran - Lettere al Nuovo Cimento (1971-1985), 1975 - Springer
… Since black holes may eventually prove to be real astrophysical objects it is interesting to
calculate the upper limit to the energy that can be gained in a single Penrose process. We shall …
calculate the upper limit to the energy that can be gained in a single Penrose process. We shall …
[PDF][PDF] The distinguishing signature of magnetic Penrose process
N Dadhich, A Tursunov, B Ahmedov… - Monthly Notices of the …, 2018 - academic.oup.com
… Penrose process (MPP) is its super high-efficiency … process, which is also driven by the
electromagnetic field, is Blandford–Znajek mechanism (BZ) that could be envisaged as high …
electromagnetic field, is Blandford–Znajek mechanism (BZ) that could be envisaged as high …
[HTML][HTML] The collisional Penrose process
JD Schnittman - General relativity and gravitation, 2018 - Springer
… a way to attain an even higher efficiency from the Penrose process [7, 10]. The crucial point
was to use more than one particle, in order to achieve a much higher center-of-mass energy …
was to use more than one particle, in order to achieve a much higher center-of-mass energy …
Maximal efficiency of the collisional Penrose process with spinning particles
K Maeda, K Okabayashi, H Okawa - Physical Review D, 2018 - APS
… We analyze the collisional Penrose process of spinning test particles in an extreme Kerr
black hole. We consider that two particles plunge into the black hole from infinity and collide …
black hole. We consider that two particles plunge into the black hole from infinity and collide …
Penrose process: Its variants and astrophysical applications
Z Stuchlík, M Kološ, A Tursunov - Universe, 2021 - mdpi.com
… We present a review of the Penrose process and its … We introduce the standard variant of
this process, its magnetic version … efficiencies—regimes of moderate and ultra-high efficiency. …
this process, its magnetic version … efficiencies—regimes of moderate and ultra-high efficiency. …
Ultrahigh-energy debris from the collisional Penrose process
… black holes can produce high-energy ejecta and result in high efficiencies under much more
… the collisional Penrose process may power gamma rays and ultrahigh-energy cosmic rays. …
… the collisional Penrose process may power gamma rays and ultrahigh-energy cosmic rays. …
Fifty years of energy extraction from rotating black hole: revisiting magnetic Penrose process
A Tursunov, N Dadhich - Universe, 2019 - mdpi.com
… In addition, BZ cannot provide ultra high efficiency, which is … process which includes and
approximates to BZ for high … three regimes of efficiency: low, moderate and ultra high. BZ …
approximates to BZ for high … three regimes of efficiency: low, moderate and ultra high. BZ …
Extracting black-hole rotational energy: The generalized Penrose process
JP Lasota, E Gourgoulhon, M Abramowicz… - Physical Review D, 2014 - APS
… Penrose process: absorption of negative energy and negative angular momentum. We also
show that a necessary condition for the Penrose process … of a Penrose process reproduces …
show that a necessary condition for the Penrose process … of a Penrose process reproduces …
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