• Jesper Sommer-Larsen
Conference paper
Part of the Astrophysics and Space Science Proceedings book series (ASSSP)


Extended, soft X-ray emission from the halo of a very large disk galaxy has been detected. The luminosity and surface brightness distribution is in excellent agreement with predictions by recent, cosmological galaxy formation models. Predicted Lyα emission, associated with “cold” accretion of filamentary gas onto galaxies, is discussed in relation to Lyα “blobs”. Finally, the predicted evolution of the Tully-Fisher relation, going from z=0 to 1, is discussed in relation to recent observations.


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Copyright information

© Springer 2007

Authors and Affiliations

  • Jesper Sommer-Larsen
    • 1
  1. 1.Dark Cosmology Centre, Niels Bohr InstituteUniversity of CopenhagenDenmark

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