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Observed jet power and radiative efficiency of black hole candidates in Kerr + PFDM model

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arxiv 2408.05576 v1 pith:TBP2QJA3 submitted 2024-08-10 gr-qc astro-ph.HE

classification gr-qcastro-ph.HE
keywords kerrspacetimeblackpfdmefficiencyholesobservedpower
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In this research, we explore the electromagnetic energy emitted by astrophysical black holes within the Kerr+PFDM spacetime, a model encompassing rotating black holes surrounded by dark matter. Our investigation focuses on black holes within X-ray binary systems, namely GRS 1915+105, GRO J1655-40, XTE J1550-564, A0620-00, H1743-322, and GRS 1124-683. Our findings indicate that the Kerr+PFDM spacetime can account for the radiative efficiency of these sources as determined through the continuum fitting method (CFM). Additionally, employing the Blandford-Znajeck mechanism, we demonstrate the ability to replicate the observed jet power. By combining the outcomes of both analyses for the selected objects, we establish more rigorous constraints on the spacetime parameters. Notably, our results reveal that similar to the Kerr spacetime, the Kerr+PFDM spacetime cannot simultaneously account for the observed jet power and radiative efficiency of GRS 1915+105.

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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Cosmological coupled black holes immersed in dark sector

    gr-qc 2026-03 unverdicted novelty 6.0 of 10

    Derives an exact solution for a black hole in anisotropic dark sector FLRW background with mass co-evolving via radius-dependent coupling governed by the dark halo profile.

  2. Cosmological coupled black holes immersed in dark sector

    gr-qc 2026-03 unverdicted novelty 5.0 of 10

    Exact solution for a black hole whose mass co-evolves with Hubble expansion via radius-dependent coupling to an anisotropic dark halo in FLRW spacetime.

  3. Regular Rotating Black Hole: Probing the boundaries of the Radiative Signatures and Jet Power

    astro-ph.HE 2025-08 conditional novelty 5.0 of 10

    MOG regular rotating black holes are compatible with most X-ray binary data only for beta below about 0.38 to 0.4, and are excluded for the near-extremal source GRS 1915+105.

  4. Low-mass X-ray binaries as a probe of Kerr-MOG black hole spacetime

    gr-qc 2026-06 unverdicted novelty 3.0 of 10

    Kerr-MOG parameters are constrained for six X-ray binary black holes by matching Novikov-Thorne radiative efficiencies and Blandford-Znajek jet powers to observations.

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