Implications of the non-observation of 6Li in halo stars for the primordial 7Li problem

BD Fields, KA Olive - Journal of Cosmology and Astroparticle …, 2022 - iopscience.iop.org
Abstract The primordial Lithium Problem is intimately connected to the assumption that the 7
Li abundance observed in metal-poor halo stars is unchanged from its primordial value …

Field blue straggler stars: discovery of white dwarf companions to blue metal-poor stars using UVIT/AstroSat

A Panthi, A Subramaniam, K Vaidya… - Monthly Notices of …, 2023 - academic.oup.com
Blue metal-poor (BMP) stars are the main-sequence stars that appear bluer and more
luminous than normal turn-off stars of metal-poor globular clusters. They are believed to be …

Abundance of beryllium in the Sun and stars: The role of non-local thermodynamic equilibrium effects

S Korotin, A Kučinskas - Astronomy & Astrophysics, 2022 - aanda.org
Context. Earlier studies have suggested that deviations from the local thermodynamic
equilibrium (LTE) play a minor role in the formation of Be II 313 nm resonance lines in solar …

HRMOS White Paper: Science Motivation

L Magrini, T Bensby, A Brucalassi, S Randich… - arxiv preprint arxiv …, 2023 - arxiv.org
The High-Resolution Multi-Object Spectrograph (HRMOS) is a facility instrument that we
plan to propose for the Very Large Telescope (VLT) of the European Southern Observatory …

The CUBES science case

C Evans, S Cristiani, C Opitom, G Cescutti… - Experimental …, 2023 - Springer
We introduce the scientific motivations for the development of the Cassegrain U-Band
Efficient Spectrograph (CUBES) that is now in construction for the Very Large Telescope …

Recommended electron-impact excitation and ionization cross sections for Be II

I Bray, DV Fursa, H Umer, C Hill, Y Ralchenko - Atomic Data and Nuclear …, 2024 - Elsevier
An overview of the current status of electron-impact excitation and ionization cross sections
for Be II is given and the recommended data sets for use in plasma modeling are presented …

Detecting weak beryllium lines with CUBES

R Smiljanic, AR da Silva, RE Giribaldi - Experimental Astronomy, 2023 - Springer
Beryllium is a light element with one single stable isotope, 9 Be, which is a pure product of
cosmic-ray spallation in the interstellar medium. Beryllium abundances in late-type stars can …

[KNIHA][B] Lithium Across the Universe

E Martín - 2023 - iopscience.iop.org
Lithium depletion in the Universe remains a matter of investigation This book aims to carry
out a wide-ranging inquisitive review of over half a century of astronomical observations of …

Simulated observations of heavy elements with CUBES

H Ernandes, B Barbuy, B Castilho, CJ Evans… - Experimental …, 2023 - Springer
We investigate the feasibility of robust abundances for selected neutron-capture elements
(Ge, Bi, Hf, U) from near-UV spectroscopy with the CUBES instrument now in development …

Be, V, and Cu in the halo star CS 31082-001 from near-UV spectroscopy

H Ernandes, B Barbuy, A Friaça, V Hill… - Monthly Notices of …, 2022 - academic.oup.com
ABSTRACT The 'First Stars' programme revealed the metal-poor halo star CS 31082-001 to
be r-process and actinide rich, including the first measurement of a uranium abundance for …