Maximal efficiency of the collisional Penrose process with a spinning particle. II. Collision with a particle on the innermost stable circular orbit

Kazumasa Okabayashi, Kei Ichi Maeda

研究成果: Article査読

2 被引用数 (Scopus)

抄録

We analyze the collisional Penrose process between a particle on the innermost stable circular orbit (ISCO) orbit around an extreme Kerr black hole and a particle impinging from infinity. We consider both cases with non-spinning and spinning particles. We evaluate the maximal efficiency, ηmax=(extracted energy)/(input energy), for the elastic collision of two massive particles and for the photoemission process, in which the ISCO particle will escape to infinity after a collision with a massless impinging particle. For non-spinning particles, the maximum efficiency is ηmax\approx 2.562 for the elastic collision and ηmax\approx 7 for the photoemission process. For spinning particles we obtain the maximal efficiency ηmax\approx 8.442 for the elastic collision and ηmax\approx 12.54 for the photoemission process.

本文言語English
論文番号013E01
ジャーナルProgress of Theoretical and Experimental Physics
2020
1
DOI
出版ステータスPublished - 2020 1 8

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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