HI Structure Observations of Reionization and Dark Energy

TL;DR

This paper reviews how HI structure observations, particularly from the Murchison Widefield Array, contribute to understanding reionization and dark energy, highlighting recent developments and future prospects.

Contribution

It provides an overview of HI structure observational techniques and discusses their implications for reionization studies and dark energy measurements with current and future radio arrays.

Findings

HI structure observations are crucial for probing reionization.

Current status of MWA impacts dark energy research.

Future SKA observations will enhance cosmological insights.

Abstract

This proceeding concentrates on the BAO signature of dark energy, and how the SKA dark energy case has been complicated by the emergence of HI structure experiments modeled after the Epoch of Reionization observatories. The purpose of the conference talk was to review the current status of the Murchison Widefield Array (MWA), and show the applications of HI structure observations for both reionization and dark energy measurements. Since the status of the MWA is changing weekly, please see the website www.haystack.mit.edu/ast/arrays/mwa/ for the current status. This proceedings will instead concentrate on HI structure observations, their applicability to reionization and cosmography, and the implications for the SKA and future HI structure observations of dark energy.