The GaiaNIR mission and the engagement of the Spanish Community

Session

Technical Challenges. Chair: Jose A. Caballero

28 Jan 2026, 16:55

Agencia Espacial Española (AEE) headquarters in Sevilla

16. A huge challenge: onboard and on ground data processing

Dr Jordi Portell de Mora (ICCUB)

28/01/2026, 16:55

The Gaia ground segment has proven to be an enormous challenge from the
design, science, technical and managerial points of view. It is expected
that GaiaNIR will observe about eight times more stars than Gaia, and
thus, its data processing will be shattering. From our years of
experience with onboard and onground Gaia data handling, and the lessons
learned, in this talk we will go...

17. Radial velocity and atmospheric parameter calculations for GaiaNIR (online)

Mészáros Szabolcs

28/01/2026, 17:15

We aim to determine the optimal wavelength region for the GaiaNIR spectrograph to maximize radial velocity and atmospheric parameter precision (Teff, log g, [M/H]) between 800 and 2300 nm. To achieve this, we generated 10,000 synthetic spectra using the BOSZ library, spanning a wide range of stellar parameters, resolutions (R=5000–20,000), and signal-to-noise ratios. Radial velocities were...

39. The GaiaNIR photometry

Josep Manel Carrasco Martínez (Institut d'Estudis Espacials de Catalunya)

28/01/2026, 17:35

The photometric measurements of GaiaNIR will extend to the infrared the scientific knowledge of the Galaxy, also adding more stars not detectable by Gaia in the visible domain. This talk will discuss the current proposal and the aspects that need to be considered for the definition of the photometric and spectrophotometric instruments for the GaiaNIR mission.