206 citations · 1.1k across the 11 of their papers we have counts for
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Sulphur and zinc abundances in Galactic halo stars revisited
P. E. Nissen, C. Akerman, M. Asplund +4
High resolution UVES spectra of 40 main-sequence stars with -3.3 < [Fe/H] < -1.0 are used to derive S, Fe and Zn abundances from lines in the 400 - 950 nm region. For one star we a…
Sulphur and zinc abundances in Galactic stars and damped Lyman-alpha systems
P. E. Nissen, Y. Q. Chen, M. Asplund +1
High resolution spectra of 34 halo population dwarf and subgiant stars have been obtained with VLT/UVES and used to derive sulphur abundances from the 8694.0, 8694.6 A and 9212.9,…
The Abundances of Nitrogen and Oxygen in Damped Lyman Alpha Systems
Max Pettini, Sara L. Ellison, Jacqueline Bergeron +1
We take a fresh look at the abundance of nitrogen in DLAs with oxygen abundances between 1/10 and 1/100 of solar. This is a metallicity regime poorly sampled in the local universe…
The CORALS Survey II: Clues to Galaxy Clustering Around QSOs from z_abs ~ z_em Damped Lyman Alpha Systems
Sara L. Ellison, Lin Yan, Isobel M. Hook +3
We present a list of z_abs ~ z_em (Delta v < 3000 km/s) DLAs discovered during the CORALS survey for absorbers in a radio-selected QSO sample. On the assumption that z_abs ~ z_em D…
Optical and Infrared Spectroscopy of the type IIn SN 1998S : Days 3-127
A. Fassia, W. P. S. Meikle, N. Chugai +14
We present contemporary infrared and optical spectroscopic observations of the type IIn SN 1998S for the period between 3 and 127 days after discovery. In the first week the spectr…