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Cetus stream non-LTE abundance analysis
Dwarf galaxy streams encode rich information that is essential to understand early galaxy formation and nucleosynthesis channels. Due to various timescales of star formation... -
High-speed stars. II.
The data from the Gaia satellite led us to revise our conception of the Galaxy structure and history. Hitherto unknown components have been discovered and a deep re-thinking of... -
Evidence of high redshift Galactic alpha-poor disc
The presence of [alpha/Fe]-[Fe/H] bi-modality in the Milky Way disc has animated the Galactic archaeology community since more than two decades. Our goal is to investigate the... -
s-process abundances in halo stars
The chemical evolution history of slow neutron-capture elements in the Milky Way is still a matter of debate, especially in the metal-poor regime ([Fe/H]<-1). Based on... -
Gaia RVS benchmark stars. II.
The Gaia satellite has already provided the astronomical community with three data releases, and the Radial Velocity Spectrometer (RVS) on board Gaia has provided the radial... -
Convective-core overshooting of massive stars
Understanding and predicting their final fate is increasingly important, e.g., in the context of gravitational-wave astronomy. The interior mixing of stars in general and... -
Galactic halo stars abundances
Studies of the element abundances and kinematics of stars belonging to the Galactic halo have revealed the existence of two distinct populations: accreted stars with a low... -
Cepheids PL relation metallicity dependence
Classical Cepheids (DCEPs) play a fundamental role in the calibration of the extragalactic distance ladder, which eventually leads to the determination of the Hubble... -
DLA QSO, GRB and stars column densities
The evolution of cosmic dust content and the cycle between metals and dust in the interstellar medium (ISM) play a fundamental role in galaxy evolution. The chemical enrichment... -
Abundances of 439 stars in Omega Centauri
In this study, we report the results of the analysis of Fe, Mg, Al, and Si abundances analysis for a sample of 439 stars in Omega Centauri, using high-resolution spectra... -
ATOMIUM. Molecular inventory
The dusty winds of cool evolved stars are a major contributor of the newly synthesised material enriching the Galaxy and future generations of stars. However, the details of the... -
Malin 1 MUSE images
Giant low-surface brightness (GLSB) galaxies are an extreme class of objects with very faint and extended gas-rich disks. Malin 1 is the largest GLSB galaxy known to date, but... -
DES supernova host galaxies fits
Type Ia supernovae (SNe Ia) are useful distance indicators in cosmology, provided their luminosity is standardized by applying empirical corrections based on light-curve... -
[Mg/Fe] and [Ca/Fe] abundances of XSL
The X-shooter Spectral Library (XSL) is a large empirical stellar library used as a benchmark for the development of stellar population models. The inclusion of alpha-elements... -
Lithium with Machine-Learning
With its origin coming from several sources (Big Bang, stars, cosmic rays) and given its strong depletion during its stellar lifetime, the lithium element is of great interest... -
Chemical signature of Galactic spiral arms
Taking advantage of the recent Gaia Data Release 3 (DR3), we mapped chemical inhomogeneities in the Milky Way's disc out to a distance of ~4kpc from the Sun, using different... -
High-precision abundance of the Helmi streams
The Helmi streams are a kinematic substructure whose progenitor is likely a dwarf galaxy. Although 20 years have passed since their discovery, it is still unclear whether their... -
High-precision chemical abundances of Sequoia
Sequoia is a retrograde kinematic substructures in the nearby Galactic halo, whose properties are a matter of debate. For example, previous studies do not necessarily agree on... -
Lithium in the LRGB of 5 globular clusters
Lithium is one of the few elements produced during the Big Bang Nucleosynthesis in the early universe. Moreover, its fragility makes it useful as a proxy for stellar... -
Z-dependent yields of double detonations
Double detonations in sub-Chandrasekhar mass carbon-oxygen white dwarfs with helium shell are a potential explosion mechanism for a Type Ia supernova. It comprises a shell...
