3 papers
astro-ph.SR2018
Weak Magnetic Fields in Two Herbig Ae Systems: The SB2 AK Sco and the Presumed Binary HD 95881
S. P. Järvinen, T. A. Carroll, S. Hubrig +9
We report the detection of weak mean longitudinal magnetic fields in the Herbig Ae double-lined spectroscopic binary AK Sco and in the presumed spectroscopic Herbig Ae binary HD958…
astro-ph.SR2017
An abundance analysis from the STIS-HST UV spectrum of the non-magnetic Bp star HR 6000
F. Castelli, C. R. Cowley, T. R. Ayres +2
The sharp-line spectrum of the Bp star HR 6000 has peculiarities that distinguish it from those of the HgMn stars with which it is sometimes associated. The position of the star cl…
astro-ph.SR2016
A study of the elements copper through uranium in Sirius A: Contributions from STIS and ground-based spectra
Charles R. Cowley, Thomas R. Ayres, Fiorella Castelli +3
We determine abundances or upper limits for all of the 55 stable elements from copper to uranium for the A1 Vm star Sirius. The purpose of the study is to assemble the most complet…