X-ray, Lyα and Hα emission from simulated disk galaxies |
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| Authors: | Jesper Sommer-Larsen Sune Toft Jesper Rasmussen Kristian Pedersen Martin Götz Laura Portinari |
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| Institution: | (1) Theoretical Astrophysics Center, Copenhagen, Denmark;(2) Astronomical Observatory, Copenhagen, Denmark |
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| Abstract: | The X-ray properties of the haloes of disk galaxies formed in fully cosmological, hydro/gravity simulations are discussed.
The results are found to be consistent with observational X-ray detections and upper limits. Disk galaxy haloes are predicted
to be about an order of magnitude brighter at z ∼ 1 than at z=0. The Lyα and Hα surface brightness of an edge-on, Milky Way like model galaxy has been determined. The emission is found
to be quite extended, with a scale height of about 600 pc, neglecting dust corrections.
This revised version was published online in August 2006 with corrections to the Cover Date. |
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