NGC 5128, J.L. Sersic, Atlas de Galaxias Australes, 1968
NGC 253, J.L. Sersic, Atlas de Galaxias Australes, 1968
1st Extragalactic Astronomy Meeting, 1975, J.L. Sersic, T.G. Catellanos, P. Kaufman
NGC 2442, J.L. Sersic, Atlas de Galaxias Australes, 1968
2nd Extragalactic Astronomy Meeting, 1987
NGC 2997, J.L. Sersic, Atlas de Galaxias Australes, 1968
3rd Extragalactic Astronomy Meeting, 1996
NGC 55, J.L. Sersic, Atlas de Galaxias Australes, 1968

Ariel Sanchez

Germany – MPE

Evolution mapping: an approach to describe the non-linear density field

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Abstract: In this presentation, I introduce the concept of “evolution mapping” as a powerful tool for simplifying the description of the non-linear matter density field. This approach exploits the fact that cosmologies with identical linear power spectra exhibit strikingly similar non-linear evolutions. This inherent degeneracy drastically reduces the number of parameters required to characterize statistics of the non-linear density field. Among other applications, this offers the opportunity to construct emulators for Large-Scale Structure (LSS) statistics whose predictions are applicable across a broad range of cosmologies and redshifts. The evolution mapping degeneracy also provides a straightforward avenue for comprehending the cosmological information content of all clustering statistics. In this context, I will demonstrate how this concept can be used to decode the information embedded in large-scale anisotropic two-point clustering measurements.

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