Galactic Archaeology with CoRoT and APOGEE: Creating mock observations from a chemodynamical model

TL;DR

This paper demonstrates how to simulate a combined asteroseismic and spectroscopic dataset of red giants in the Milky Way using a chemodynamical galaxy model, highlighting the impact of observation procedures on age estimation accuracy.

Contribution

It introduces a method to generate mock observations from a chemodynamical model, aiding in understanding observational biases and improving galactic archaeology studies.

Findings

Simulated dataset closely matches observed chemical and age distributions.

Observation procedures significantly affect age estimation accuracy.

The model helps identify biases in current galactic archaeology methods.

Abstract

In a companion paper, we have presented the combined asteroseismic-spectroscopic dataset obtained from CoRoT lightcurves and APOGEE infra-red spectra for 678 solar-like oscillating red giants in two fields of the Galactic disc (CoRoGEE). We have measured chemical abundance patterns, distances, and ages of these field stars which are spread over a large radial range of the Milky Way's disc. Here we show how to simulate this dataset using a chemodynamical Galaxy model. We also demonstrate how the observation procedure influences the accuracy of our estimated ages.