A 300-parsec-long jet-inflated bubble around a powerful microquasar in the galaxy NGC 7793

@article{Pakull2010A3J,
  title={A 300-parsec-long jet-inflated bubble around a powerful microquasar in the galaxy NGC 7793},
  author={Manfred W. Pakull and Roberto Soria and Christian Motch},
  journal={Nature},
  year={2010},
  volume={466},
  pages={209-212}
}
Black-hole accretion states near or above the Eddington luminosity (the point at which radiation force outwards overcomes gravity) are still poorly known because of the rarity of such sources. Ultraluminous X-ray sources are the most luminous class of black hole (LX ≈ 1040 erg s−1) located outside the nuclei of active galaxies. They are likely to be accreting at super-Eddington rates, if they are powered by black holes with masses less than 100 solar masses. They are often associated with shock… 

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