BH2 - Theoretical and observational studies of astrophysical black holes |
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Speaker |
Okabayashi, Kazumasa |
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Coauthors |
Okabayashi, Kazumasa; Okawa, Hirotada |
| Talk Title |
Maximal Efficiency of Collisional Penrose Process with Spinning Particles |
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Abstract |
We analyze 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 near the black hole. For the collision of two massive particles, we obtain the maximal efficiency (the extracted energy/the input energry) is about 15.01, which is more than twice as large as the case of the collision of non-spinning particles (6.32). We also evaluate the collision of a massless particle without spin and a massive particle with spin (Compton scattering), in which we find the maximal efficiency is about 26.85, which should be compared with the efficiency for the non-spinning case (13.93). |
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