51 Peg b revisited with VLT/CRIRES+. Constraints on atmospheric thermal structure, chemical composition, and an alternative orbital solution

arXiv:2605.23582 · astro-ph.EP · Submitted 2026-05-22 · Read on arXiv

D. Cont, L. Nortmann, F. Lesjak, U. Seemann, L. D. Nielsen, B. Wechselberger, F. Yan, S. Liu, A. Reiners, A. Lavail, D. Shulyak, A. Hatzes, N. Piskunov, L. Boldt-Christmas, S. Czesla, E. W. Guenther, O. Kochukhov, T. Marquart, E. Nagel, A. D. Rains, M. Rengel

astro-ph.EP

Submitted: 2026-05-22

Comments: Accepted for publication in A&A

Code: https://github.com/exoclime/FastChem

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

Terminology

Metallicity — 8× in this paper · explained in 3 episodes
Abundance — 7× in this paper · explained in 1 episode
Spectral Signature — 5× in this paper · explained in 2 episodes
Alignment — 4× in this paper · explained in 1 episode
Calibration — 3× in this paper · explained in 7 episodes
Adaptive Optics (AO) — 1× in this paper · explained in 2 episodes
Bayesian Framework — 1× in this paper · explained in 3 episodes
Benchmark — 1× in this paper · explained in 2 episodes
Degeneracy — 1× in this paper · explained in 3 episodes
Robustness — 1× in this paper · explained in 5 episodes
Trace — 1× in this paper · explained in 2 episodes
Transmission spectroscopy — 1× in this paper · explained in 2 episodes

51 Peg b revisited with VLT/CRIRES+. Constraints on atmospheric thermal structure, chemical composition, and an alternative orbital solution

Terminology

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