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| Autor principal: | |
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| Formato: | Preprint |
| Publicado: |
2023
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| Materias: | |
| Acceso en línea: | https://arxiv.org/abs/2302.00738 |
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- Quasars and microquasars both contain accreting black holes and power nonthermal radio sources but differ in more than their scales: Quasars are proportionally much more efficient accelerators of energetic electrons. The radio luminosity of the double radio sources associated with quasars, reflecting the long-time average of the particle acceleration power, is often 1-30% of the quasar's bolometric luminosity; in microquasars the fraction is $\lesssim 10^{-5}$. This may be explained by the scaling of accretion disc parameters with the black hole mass.