The IA Guide: A Breakdown of Intrinsic Alignment Formalisms
C Lamman, Eleni Tsaprazi, Jingjing Shi, N. Šarčević, Susan Pyne, Elisa Legnani, Tassia Ferreira
Abstract
We summarize common notations and concepts in the field of Intrinsic Alignments (IA). IA refers to physical correlations involving galaxy shapes, galaxy spins, and the underlying cosmic web. Its characterization is an important aspect of modern cosmology, particularly in weak lensing analyses. This resource is both a reference for those already familiar with IA and designed to introduce someone to the field by drawing from various studies and presenting a collection of IA formalisms, estimators, modeling approaches, alternative notations, and useful references.
Topics & Concepts
Rotation formalisms in three dimensionsComputer scienceMathematicsGeometryGalaxies: Formation, Evolution, PhenomenaAstronomy and Astrophysical ResearchStellar, planetary, and galactic studies