The GAPS programme at TNG LXXV. Validating and confirming Gaia substellar astrometric candidates with HARPS-N

arXiv:2606.29001 · astro-ph.EP, astro-ph.IM, astro-ph.SR · Submitted 2026-06-27 · Read on arXiv

D. Barbato, M. Pinamonti, A. Sozzetti, S. Desidera, V. D'Orazi, J. Maldonado, K. Biazzo, L. Naponiello, A. F. Lanza, A. Bignamini, A. S. Bonomo, M. Brogi, L. Cabona, M. Damasso, R. Gratton, L. Mancini, G. Mantovan, D. Nardiello, M. Rainer, G. Guilluy, P. Giacobbe, L. Malavolta, R. Cosentino, W. Boschin, R. Claudi

astro-ph.EP, astro-ph.IM, astro-ph.SR

Submitted: 2026-06-27

Comments: 19 pages, 11 figures, accepted for publication on A&A

Code: https://github.com/LucaMalavolta/PyORBIT

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Abundance — 3× in this paper · explained in 1 episode
• Degeneracy — 3× in this paper · explained in 3 episodes
• Monte Carlo Analysis — 2× in this paper · explained in 2 episodes
• Society of Photo-Optical Instrumentation Engineers — 2× in this paper
• Accuracy — 1× in this paper · explained in 1 episode
• European Space Agency — 1× in this paper
• False Alarm Probability — 1× in this paper
• Gaussian Process — 1× in this paper
• Verification — 1× in this paper · explained in 2 episodes

Sources

• The Pan-STARRS1 Surveys
• EXOFASTv2: A public, generalized, publication-quality exoplanet modeling code
• Brown Dwarf Formation: Theory

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