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21SSD: a new public 21-cm EoR database

Published online by Cambridge University Press:  08 May 2018

Evan Eames  and
Benoît Semelin
Evan Eames
Affiliation:
Sorbonne Universités, UPMC, Observatoire de Paris PSL research university, CNRS F-75014, Paris, France email: [email protected]
Benoît Semelin
Affiliation:
Sorbonne Universités, UPMC, Observatoire de Paris PSL research university, CNRS F-75014, Paris, France email: [email protected]
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Abstract

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With current efforts inching closer to detecting the 21-cm signal from the Epoch of Reionization (EoR), proper preparation will require publicly available simulated models of the various forms the signal could take. In this work we present a database of such models, available at 21ssd.obspm.fr. The models are created with a fully-coupled radiative hydrodynamic simulation (LICORICE), and are created at high resolution (10243). We also begin to analyse and explore the possible 21-cm EoR signals (with Power Spectra and Pixel Distribution Functions), and study the effects of thermal noise on our ability to recover the signal out to high redshifts. Finally, we begin to explore the concepts of ‘distance’ between different models, which represents a crucial step towards optimising parameter space sampling, training neural networks, and finally extracting parameter values from observations.

Keywords

Methods: numericalradiative transferdark agesreionization
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S333: Peering towards Cosmic Dawn , October 2017 , pp. 30 - 33
Copyright
Copyright © International Astronomical Union 2018 

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