3 papers
astro-ph.SR2026
Discovery of the Bootis phenomenon in an early B-type star
J. Olbermann, P. Aschenbrenner, N. Przybilla
Chemically peculiar A-type stars of the Boo class are characterised by depletions of refractory elements and normal volatile species. Their formation channel(s) have not yet be…
astro-ph.SR2026
Quantitative spectroscopy of single and multiple OB-type stars. Non-LTE spectrum analysis with machine learning
P. Aschenbrenner, N. Przybilla
The plethora of spectra of OB-type stars in observatory archives and the much larger numbers to come from the WEAVE and 4MOST spectroscopic facilities require efficient, but also a…
astro-ph.SR2025
The present-day cosmic phosphorus abundance
P. Aschenbrenner, K. Butler, N. Przybilla
The present-day phosphorus abundance in the solar neighbourhood is determined from a sample of OB-type stars. This is in order to constrain the endpoint of the galactochemical evol…