An introduction to compact source detection in cosmic microwave background images

TL;DR

This paper provides a tutorial on detecting and analyzing compact sources in cosmic microwave background images, emphasizing their importance for cosmology and large-scale structure studies.

Contribution

It offers a comprehensive introduction to methods for source detection, parameter estimation, and statistical analysis in CMB data, highlighting their significance for current and future missions.

Findings

Highlights the impact of compact sources on cosmological parameter estimation.

Discusses techniques for detecting and characterizing sources in CMB images.

Emphasizes the scientific value of compact sources for understanding large-scale structure.

Abstract

We aim to present a tutorial on the detection, parameter estimation and statistical analysis of compact sources (far galaxies, galaxy clusters and Galactic dense emission regions) in cosmic microwave background observations. The topic is of great relevance for current and future cosmic microwave background missions because the presence of compact sources in the data introduces very significant biases in the determination of the cosmological parameters that determine the energy contain, origin and evolution of the universe and because compact sources themselves provide us with important information about the large scale structure of the universe.