Ultra-diffuse galaxies outside clusters: clues to their formation and evolution

@article{Roman2016UltradiffuseGO,
  title={Ultra-diffuse galaxies outside clusters: clues to their formation and evolution},
  author={Javier Rom'an and Ignacio Trujillo},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2016},
  volume={468},
  pages={4039-4047}
}
  • Javier Rom'an, Ignacio Trujillo
  • Published 2016
  • Physics
  • Monthly Notices of the Royal Astronomical Society
  • We identify six ultra diffuse galaxies (UDGs) outside clusters in three nearby isolated groups (z 250 kpc) of our three groups, we identify a population of potential UDG progenitors (two of them confirmed spectroscopically). These progenitors have similar masses, shapes and sizes but are bluer, g-i~0.45, (and for this reason brighter, mu_g(0) 24 mag arcsec -2) UDGs after ~6 Gyr. If confirmed, our observations support a scenario where UDGs are old, extended, low surface brightness dwarfs (M*~10… CONTINUE READING

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