28–30 Jan 2026
Agencia Espacial Española (AEE) headquarters in Sevilla
Europe/Madrid timezone

The GaiaNIR simulator and BGM

30 Jan 2026, 09:30
20m
Agencia Espacial Española (AEE) headquarters in Sevilla

Agencia Espacial Española (AEE) headquarters in Sevilla

CREA Building, Avenida de José Galán Merino, 6

Speaker

Eduard Masana

Description

Simulations are a cornerstone in the preparation and design of any space
mission. In the case of GaiaNIR, these simulations are critical for estimating the total number of detectable sources, which is expected to significantly exceed the current Gaia catalogue. Such data is essential for refining the mission's observation strategy and finalizing the instrument's technical specifications.
We summarize the work already conducted, specifically the star counts
estimated for various wavelength ranges using Besançon Galaxy Model (BGM)
included in the Gaia simulator. Furthermore, we present new tools and
methodologies designed to enhance the precision of these estimates,
accounting for the unique challenges of near-infrared detection and stellar crowding.

Presentation materials

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