M. Le Delliou
The abundance of Lyα emitters in hierarchical models
Le Delliou, M.; Lacey, C.G.; Baugh, C.M.; Guiderdoni, B.; Bacon, R.; Courtois, H.; Sousbie, T.; Morris, S.L.
Authors
Professor Cedric Lacey cedric.lacey@durham.ac.uk
Professor
Professor Carlton Baugh c.m.baugh@durham.ac.uk
Professor
B. Guiderdoni
R. Bacon
H. Courtois
T. Sousbie
Professor Simon Morris simon.morris@durham.ac.uk
Professor
Abstract
We present predictions for the abundance of Lyα emitters in hierarchical structure formation models. We use the GALFORM semi-analytical model of galaxy formation to explore the impact on the predicted counts of varying assumptions about the escape fraction of Lyα photons, the redshift at which the Universe reionized and the cosmological density parameter. A model with a fixed escape fraction gives a remarkably good match to the observed counts over a wide redshift interval. The counts at bright fluxes are dominated by ongoing starbursts. We present predictions for the expected counts in a typical observation with the Multi-Unit Spectroscopic Explorer (MUSE) instrument proposed for the Very Large Telescope.
Citation
Le Delliou, M., Lacey, C., Baugh, C., Guiderdoni, B., Bacon, R., Courtois, H., …Morris, S. (2005). The abundance of Lyα emitters in hierarchical models. Monthly Notices of the Royal Astronomical Society, 357(1), L11-L15. https://doi.org/10.1111/j.1745-3933.2005.00007.x
Journal Article Type | Article |
---|---|
Acceptance Date | Nov 5, 2004 |
Online Publication Date | Feb 1, 2005 |
Publication Date | 2005-02 |
Deposit Date | Nov 22, 2006 |
Publicly Available Date | Mar 29, 2024 |
Journal | Monthly Notices of the Royal Astronomical Society |
Print ISSN | 0035-8711 |
Electronic ISSN | 1365-2966 |
Publisher | Royal Astronomical Society |
Peer Reviewed | Peer Reviewed |
Volume | 357 |
Issue | 1 |
Pages | L11-L15 |
DOI | https://doi.org/10.1111/j.1745-3933.2005.00007.x |
Keywords | Galaxies, Formation, High-redshift, Cosmology. |
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Copyright Statement
This article has been published in the Monthly Notices of the Royal Astronomical Society
© 2005 The Authors.
Published by Oxford University Press on behalf of The Royal Astronomical Society. All rights reserved.
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