Globular clusters seen by Gaia

TL;DR

This paper simulates Gaia observations of twelve globular clusters, analyzing the effects of crowding and Gaia's capabilities to enhance understanding of these clusters.

Contribution

It provides a simulation framework transforming globular cluster properties into Gaia observables, incorporating crowding effects based on recent Gaia performance data.

Findings

Crowding impacts on Gaia observations of globular clusters

Gaia's potential to improve globular cluster studies

Simulation results inform future observational strategies

Abstract

We present a simulation of twelve globular clusters with different concentration, distance, and background population, whose properties are transformed into Gaia observables with the help of the lates Gaia science performances prescriptions. We adopt simplified crowding receipts, based on five years of simulations performed by DPAC (Data Processing and Analysis Consortium) scientists, to explore the effect of crowding and to give a basic idea of what will be made possible by Gaia in the field of Galactic globular clusters observations.