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55 papers · 1 filter
Collisional Excitation in Space: Recent Advances and Future Challenges in the JWST Era
Francesca Tonolo
This perspective offers a viewpoint on how the challenges of molecular scattering investigations of astrophysical interest have evolved in recent years. Computational progress has…
Physical interpretation of the oscillation spectrum on the RGB and AGB
G. Dréau, Y. Lebreton, B. Mosser +1
The high-frequency resolution of the four-year time series allows detailed study of seismic modes in luminous giants. Seismic observables help infer interior stru…
The impact of the transport of chemicals and electronic screening on helioseismic and neutrino observations in solar models
Morgan Deal, Gaël Buldgen, Louis Manchon +3
The transport of chemical elements in stellar interiors is one of the greatest sources of uncertainties of solar and stellar modelling. The Sun, with its exquisite spectroscopic, h…
Helioseismic inference of the solar radiative opacity
Gaël Buldgen, Jean-Christophe Pain, Philippe Cossé +18
The Sun is the most studied of all stars, and thus constitutes a benchmark for stellar models. However, our vision of the Sun is still incomplete, as illustrated by the current deb…
The unexpected optical and ultraviolet variability of the standard star Sex (HD 87887)
Richard Monier, Dominic M. Bowman, Yveline Lebreton +1
The analysis of the available TESS light curves of Sex (HD 87887) reveals low-frequency pulsations with a period of about 9.1 hours in this spectroscopic A0 III standard star.…
The surface composition of six newly discovered chemically peculiar stars. Comparison to the HgMn stars Lep and Scl and the superficially normal B star Cap
Richard Monier, E. Niemczura, D. W. Kurtz +10
We report on a detailed abundance study of six bright, mostly southern, slowly rotating late B stars: HD~1279 (B8III), HD~99803 (B9V), HD~123445 (B9V), HD~147550 (B9V), HD~171961 (…