51 citations · 202 across the 12 of their papers we have counts for
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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…
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…
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…
New Mn II energy levels from STIS-HST spectrum of the HgMn star HD 175640
F. Castelli, R. L. Kurucz, C. R. Cowley
The NIST database lists several Mn II lines that were observed in the laboratory but not classified. They cannot be used in spectrum synthesis because their atomic line data are un…
Abundance analysis, spectral variability, and search for the presence of a magnetic field in the typical PGa star HD19400
S. Hubrig, F. Castelli, J. F. Gonzalez +6
The aim of this study is to carry out an abundance determination, to search for spectral variability and for the presence of a weak magnetic field in the typical PGa star HD19400.…
Establishing the link between HgMn and PGa stars
N. A. Drake, S. Hubrig, M. Schoeller +4
We discuss most recent spectroscopic and spectropolarimetric observations of the star HD 19400 representative of the group of PGa stars. Our high-spectral-resolution study of abund…
Magnetic fields of HgMn stars
S. Hubrig, J. F. Gonzalez, I. Ilyin +8
The frequent presence of weak magnetic fields on the surface of spotted late-B stars with HgMn peculiarity in binary systems has been controversial during the two last decades. We…
Line identification in high-resolution, near-infrared CRIRES spectra of chemically peculiar and Herbig Ae stars
S. Hubrig, F. Castelli, J. F. Gonzalez +5
The recent availability of ESO's high-resolution spectrograph CRIRES offers now the opportunity to study numerous spectral features in the near-IR in intermediate-mass main-sequenc…
The narrow, inner CO ring around the magnetic Herbig Ae star, HD 101412
C. R. Cowley, S. Hubrig, F. Castelli +1
We describe and model emission lines in the first overtone band of CO in the magnetic Herbig Ae star HD 101412. High-resolution CRIRES spectra reveal unusually sharp features which…
New identified (3H)4d - (3H)4f transitions of Fe II from UVES spectra of HR 6000 and 46 Aql
F. Castelli, R. L. Kurucz, S. Hubrig
The analysis of the high-resolution UVES spectra of the CP stars HR 6000 and 46 Aql revealed the presence of an impressive number of unidentified lines, in particular in the 5000 -…
A high resolution study of isotopic composition and chemical abundances of blue horizontal branch stars in the globular clusters NGC6397 and NGC6752
S. Hubrig, F. Castelli, G. De Silva +4
Large abundance anomalies have been previously detected in Horizontal Branch B-type stars. We present the first high resolution study of isotopic anomalies and chemical abundances…