activity
20032023
most citedThe chemical composition of the Sun

9.4k citations · 12.4k across the 19 of their papers we have counts for

collaborators

19 papers

astro-ph.SR2023

Helioseismic determination of the solar metal mass fraction

G. Buldgen, A. Noels, V. A. Baturin +5

Context. The metal mass fraction of the Sun Z is a key constraint in solar modelling, but its value is still under debate. The standard solar chemical composition of the late 2000s…

astro-ph.SR2022★ 30 cited

Higher metal abundances do not solve the solar problem

G. Buldgen, P. Eggenberger, A. Noels +4

Context. The Sun acts as a cornerstone of stellar physics. Thanks to spectroscopic, helioseismic and neutrino flux observations, we can use the Sun as a laboratory of fundamental p…

astro-ph.SR2021

The solar carbon, nitrogen, and oxygen abundances from a 3D LTE analysis of molecular lines

A. M. Amarsi, N. Grevesse, M. Asplund +1

Carbon, nitrogen, and oxygen are the fourth, sixth, and third most abundant elements in the Sun. Their abundances remain hotly debated due to the so-called solar modelling problem…

astro-ph.SR2021★ 726 cited

The chemical make-up of the Sun: A 2020 vision

M. Asplund, A. M. Amarsi, N. Grevesse

The chemical composition of the Sun is a fundamental yardstick in astronomy, relative to which essentially all cosmic objects are referenced. We reassess the solar abundances of al…

astro-ph.SR2020★ 32 cited

The 3D non-LTE solar nitrogen abundance from atomic lines

A. M. Amarsi, N. Grevesse, J. Grumer +3

Nitrogen is an important element in various fields of stellar and Galactic astronomy, and the solar nitrogen abundance is crucial as a yardstick for comparing different objects in…

astro-ph.SR2019★ 54 cited

3D non-LTE line formation of neutral carbon in the Sun

A. M. Amarsi, P. S. Barklem, R. Collet +2

Carbon abundances in late-type stars are important in a variety of astrophysical contexts. However C i lines, one of the main abundance diagnostics, are sensitive to departures fro…