Determination of [Fe/H] in Fundamental mode Classical Cepheids from Gaia DR3 light curve Fourier parameters

arXiv:2607.16775 · astro-ph.SR, astro-ph.GA · Submitted 2026-07-18 · Read on arXiv

Roberto Molinaro, Vincenzo Ripepi, Marcella Marconi, Massimiliano Gatto, Erasmo Trentin, Mami Deka, Giulia De Somma, Ilaria Musella, Teresa Sicignano, Francesco Ficara, Silvio Leccia, Emnuela Luongo

astro-ph.SR, astro-ph.GA

Submitted: 2026-07-18

Comments: Accepted for publication in Astronomy & Astrophysics

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

Terminology

Metallicity — 61× in this paper · explained in 3 episodes
Calibration — 34× in this paper · explained in 7 episodes
Abundance — 27× in this paper · explained in 1 episode
Feature Selection — 8× in this paper · explained in 4 episodes
Consistency — 5× in this paper · explained in 3 episodes
Random Forest — 4× in this paper
Robustness — 4× in this paper · explained in 5 episodes
European Space Agency — 2× in this paper
Systematic Bias — 2× in this paper · explained in 3 episodes
Accuracy — 1× in this paper · explained in 1 episode
Cepheids in the Milky Way — 1× in this paper
Cooperation — 1× in this paper · explained in 2 episodes
External Validation — 1× in this paper · explained in 2 episodes
Hubble Tension — 1× in this paper · explained in 9 episodes
Large Magellanic Cloud — 1× in this paper
Median Absolute Deviation — 1× in this paper
Orthogonal Distance Regression — 1× in this paper
Residual Sum of Squares — 1× in this paper
Selection Bias — 1× in this paper · explained in 4 episodes
Weighted Least Squares — 1× in this paper

Sources

Cepheid Metallicity in the Leavitt Law (C-MetaLL) survey: IX. Metallicity dependence of Period-Wesenheit relations based on a homogeneous spectroscopic sample

Terminology

Sources

Related papers