How much can we trust high-resolution spectroscopic stellar chemical abundances?
S. Blanco-Cuaresma, T. Nordlander, U. Heiter, P. Jofr\'e, T. Masseron,, L. Casamiquela, H. M. Tabernero, S. S. Bhat, A. R. Casey, J. Mel\'endez, and, I. Ram\'irez
TL;DR
This paper investigates how the choice of radiative transfer codes affects chemical abundance measurements from high-resolution stellar spectra, highlighting potential sources of inhomogeneity in stellar population studies.
Contribution
It provides an analysis of the differences in chemical abundances derived using various radiative transfer codes, addressing a key source of systematic uncertainty.
Findings
Differences in radiative transfer codes can lead to significant variations in abundance measurements.
The study quantifies the impact of code choice on chemical abundance accuracy.
Results highlight the need for standardization in spectroscopic analysis methods.
Abstract
To study stellar populations, it is common to combine chemical abundances from different spectroscopic surveys/studies where different setups were used. These inhomogeneities can lead us to inaccurate scientific conclusions. In this work, we studied one aspect of the problem: When deriving chemical abundances from high-resolution stellar spectra, what differences originate from the use of different radiative transfer codes?
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsStellar, planetary, and galactic studies · Astronomy and Astrophysical Research