Astrophysical jets from boosted compact objects

Ramiro Cayuso, Federico Carrasco, Barbara Sbarato, and Oscar Reula
Phys. Rev. D 100, 063009 – Published 18 September 2019

Abstract

We perform full 3D numerical simulations of compact objects, such as black holes or neutron stars, boosted through an ambient forcefree plasma that posses a uniform magnetization. We study jet formation and energy extraction from the resulting stationary late time solutions. The implementation of appropriate boundary conditions has allowed us to explore a wide range of boost velocities, finding the jet power scales as γv2 (being γ the Lorentz factor). We also explore other parameters of the problem like the orientation of the motion respect to the asymptotic magnetic field or the inclusion of black hole spin. Additionally, by comparing a black hole with a perfectly conducting sphere in flat spacetime, we manage to disentangle curvature effects from those produced by the perfect conducting surface. It is shown that when the stellar compactness is increased these two effects act in combination, further enhancing the luminosity produced by the neutron star.

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  • Received 1 May 2019

DOI:https://doi.org/10.1103/PhysRevD.100.063009

© 2019 American Physical Society

Physics Subject Headings (PhySH)

Gravitation, Cosmology & Astrophysics

Authors & Affiliations

Ramiro Cayuso1,2,*, Federico Carrasco1,3,†, Barbara Sbarato1,‡, and Oscar Reula1,§

  • 1Facultad de Matemática, Astronomía, Física y Computación, Universidad Nacional de Córdoba Instituto de Física Enrique Gaviola, CONICET. Ciudad Universitaria (5000), Córdoba, Argentina
  • 2Perimeter Institute for Theoretical Physics, Waterloo, Ontario, N2L2Y5, Canada
  • 3Departament de Física & IAC3, Universitat de les Illes Balears and Institut d’Estudis Espacials de Catalunya, Palma de Mallorca, Baleares E-07122, Spain

  • *rcayuso@perimeterinstitute.ca
  • federico.carrasco@uib.es
  • barbarasbarato@gmail.com
  • §reula@famaf.unc.edu.ar

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Vol. 100, Iss. 6 — 15 September 2019

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