Mapping the Universe with slitless spectroscopy [CEA]

http://arxiv.org/abs/2301.05669


Euclid will survey most of the accessible extragalactic sky with imaging and slitless spectroscopy observations, creating a unique spectroscopic catalog of galaxies with H$\alpha$ line in emission that will map the Universe from $z=0.9$ to $1.8$. With low expected statistical errors, the error budget will likely be dominated by systematic errors related to uncertainties in the data and modelling. I will discuss the strategy that has been proposed to mitigate the expected systematic effects and propagate the uncertainty of mitigation to cosmological parameter errobars.

Read this paper on arXiv…

P. Monaco
Mon, 16 Jan 23
1/50

Comments: 4 pages, 2 figures, proceedings of the Hack100 conference, to appear on Memorie della Societa` Astronomica Italiana