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arXiv · astro-ph/0210514

X-ray, Ly-alpha and H-alpha Emission from Simulated Disk Galaxies

Jesper Sommer-Larsen·Sune Toft·Jesper Rasmussen·Kristian Pedersen·Martin Gotz·Laura Portinari
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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 in soft X-rays at z~1 than at z=0. The Ly-alpha and H-alpha 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 extinction corrections.

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Jesper Sommer-Larsen, Sune Toft, Jesper Rasmussen, Kristian Pedersen, Martin Gotz, Laura Portinari. 2002-10-23. X-ray, Ly-alpha and H-alpha Emission from Simulated Disk Galaxies. https://doi.org/10.1023/a%3A1024099131927

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