3 papers
astro-ph.SR2019
Heavy-metal enrichment in the intermediate He-sdOB pulsator Feige 46
Marilyn Latour, Matti Dorsch, Ulrich Heber
The intermediate He-enriched hot subdwarf star Feige 46 was recently reported as the second member of the V366 Aqr (or He-sdOBV) pulsating class. Feige 46 is very similar to the pr…
astro-ph.SR2019
Heavy metals in intermediate He-rich hot subdwarfs: The chemical composition of HZ44 and HD127493
Matti Dorsch, Marilyn Latour, Ulrich Heber
Hot subluminous stars can be spectroscopically classified as subdwarf B (sdB) and O (sdO) stars. While the latter are predominantly hydrogen deficient, the former are mostly helium…
astro-ph.SR2018
Spectral analysis of the He-enriched sdO-star HD 127493
Matti Dorsch, Marilyn Latour, Ulrich Heber
The bright sdO star HD 127493 is known to be of mixed H/He composition and excellent archival spectra covering both optical and ultraviolet ranges are available. UV spectra play a…