74 citations · 99 across the 4 of their papers we have counts for
4 papers
Beryllium abundances and star formation in the halo and in the thick disk
R. Smiljanic, L. Pasquini, P. Bonifacio +4
[abridged] Beryllium is a pure product of cosmic ray spallation. This implies a relatively simple evolution in time of the beryllium abundance and suggests its use as a time-like o…
N in turn-off stars of NGC 6397 and NGC 6752
L. Pasquini, A. Ecuvillon, P. Bonifacio +1
We measure the nitrogen abundance in 5 Turn Off(TO) stars of the Globular Clusters NGC 6397 and NGC 6752, and compare the cluster abundances with those of field stars of comparable…
Beryllium abundance in turn-off stars of NGC 6752
Luca Pasquini, Piercarlo Bonifacio, Sofia Randich +3
Aims: To measure the beryllium abundance in two TO stars of the Globular Cluster NGC 6752, one oxygen rich and sodium poor, the other presumably oxygen poor and sodium rich. Be abu…
The EUV spectrum of the unique bare stellar core H1504+65
K. Werner, B. Wolff
We performed a spectral analysis of the EUVE spectrum and ROSAT data of the unique object H1504+65, which is an extremely hot post-AGB star entering the white dwarf cooling sequenc…