EDP Sciences logo
Subscriber Authentication Point
Search
Menu
Home All issues Volume 620 (December 2018) A&A, 620 (2018) A36 Full HTML
Free Access

Table 7.

Surface abundances of CD–31°4800 (left hand panel) and for LSS 1274 (right hand panel) as derived from visual/UVA and FUV data. The values are given as log (n(X)/n(H)).

CD–31°4800 LSS 1274
Element Visual/UVA FUSE Adopted Element Visual/UVA FUSE Adopted
He I & He II 2.61 ± 0.20 − 2.61 ± 0.20 He I & He II 2.17 ± 0.25 − 2.17 ± 0.25
C III −2.30 ± 0.11 −1.72 ± 0.15 C III −0.01 ± 0.06 0.11 ± 0.11
C IV −2.09 ± 0.04 −1.84 ± 0.21 C IV −0.14 ± 0.08 0.07 ± 0.34
C −2.14 ± 0.13 −1.76 ± 0.18 −2.01 ± 0.16 C −0.06 ± 0.12 0.09 ± 0.25 −0.01 ± 0.19
N II −0.25 ± 0.06 − N II (−1.29 ± 0.71) −
N III −0.24 ± 0.02 −0.37 ± 0.12 N III −1.19 ± 0.06 −1.07 ± 0.36
N IV −0.27 ± 0.02 −0.41 ± 0.12 N IV −1.01 ± 0.21 −1.05 ± 0.11
N −0.25 ± 0.10 −0.39 ± 0.12 −0.31 ± 0.11 N −1.15 ± 0.17 −1.06 ± 0.26 −1.11 ± 0.22
O II −2.09 ± 0.04 − O II (−1.60 ± 0.80) −
O III −2.29 ± 0.05 −2.12 ± 0.08 O III −1.90 ± 0.22 −1.75 ± 0.21
O IV − −2.58 ± 0.28 O IV − (−1.40 ± 0.59)
O −2.19 ± 0.11 −2.24 ± 0.14 −2.21 ± 0.13 O −1.90 ± 0.24 −1.75 ± 0.23 −1.82 ± 0.24
Ne II −0.98 ± 0.10 −0.62 ± 0.14 −0.83 ± 0.12 Ne II −0.70 ± 0.11 −0.76 ± 0.31 −0.71 ± 0.21
Mg II −1.56 ± 0.10 − −1.56 ± 0.10 Mg II −1.96 ± 0.29 − −1.96 ± 0.29
Al III −2.61 ± 0.10 −2.93 ± 0.32 −2.68 ± 0.21 Al III −1.93 ± 0.31 −2.25 ± 0.30 −2.09 ± 0.30
Si III −1.57 ± 0.10 −1.75 ± 0.14 Si III −2.23 ± 0.21 −2.19 ± 0.25
Si IV −1.78 ± 0.15 −1.75 ± 0.18 Si IV −2.23 ± 0.14 −2.08 ± 0.03
Si −1.65 ± 0.16 −1.75 ± 0.16 −1.70 ± 0.16 Si −2.23 ± 0.20 −2.09 ± 0.17 −2.16 ± 0.19
P IV − −3.92 ± 0.11 P IV − −4.02 ± 0.19
P V − −3.83 ± 0.13 P V − −3.80 ± 0.11
P − −3.88 ± 0.15 −3.88 ± 0.15 P − −3.80 ± 0.15 −3.80 ± 0.15
S III −1.79 ± 0.03 − S III − −
S IV −2.22 ± 0.07 −2.09 ± 0.10 S IV −2.46 ± 0.06 −2.54 ± 0.13
S V – −1.87 ± 0.41 S V − −2.32 ± 0.39
S V – – S VI − (−2.41 ± 0.70)
S −1.93 ± 0.11 −2.05 ± 0.27 −1.96 ± 0.19 S −2.46 ± 0.11 −2.49 ± 0.28 −2.47 ± 0.19
Fe − −2.01 ± 0.27 −2.01 ± 0.27 Fe − −2.42 ± 0.18 −2.42 ± 0.18
Ni − −2.49 ± 0.23 −2.49 ± 0.23 Ni − −2.62 ± 0.29 −2.62 ± 0.29

Notes. A “–” indicates that no usable lines of the element were found. Abundance are listed as derived from each ion accessible. A bold element symbol indicates the abundance from all ionization stages combined. The finally adopted abundances are the error-weighted averages of the results from the visual/UVA and FUSE spectra, if available. Abundances with uncertainties exceeding 0.5 dex are given in parentheses (see text).

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.