Active Galactic Nuclei in Void Regions

@article{Constantin2007ActiveGN,
  title={Active Galactic Nuclei in Void Regions},
  author={Anca Constantin and Fiona Hoyle and Michael S. E. Vogeley},
  journal={The Astrophysical Journal},
  year={2007},
  volume={673},
  pages={715 - 729}
}
We present a comprehensive study of accretion activity in the most underdense environments in the universe, the voids, based on the SDSS DR2 data. Based on investigations of multiple void regions, we show that active galactic nuclei (AGNs) are definitely common in voids, but that their occurrence rate and properties differ from those in walls. AGNs are more common in voids than in walls, but only among moderately luminous and massive galaxies (Mr < − 20, log M*/M☉ < 10.5), and this enhancement… 

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