EDP Sciences logo
Subscriber Authentication Point
Search
Menu
Home All issues Volume 709 (May 2026) A&A, 709 (2026) A165 Full HTML
Open Access

Table C.1

Reported stellar abundances

Abundance # Lines [X/H] σrand σTeff σ[M/H] σvmic σvmac σtotal
GJ 1132
[Fe/H] 22 -0.177 0.053 0.032 0.129 0.031 0.018 0.148
[Mg/H]1 2 -0.295 0.054 0.061 0.070 0.021 0.024 0.112
[Si/H]1 4 0.099 0.107 0.096 0.127 0.001 0.002 0.192
[Ti/H] 53 -0.187 0.029 0.041 0.155 0.028 0.014 0.166
GJ 1252
[Fe/H] 27 -0.176 0.037 0.061 0.058 0.019 0.087 0.128
[Mg/H] 11 -0.035 0.068 0.224 0.026 0.007 0.032 0.238
[Si/H] 5 -0.006 0.108 0.360 0.072 0.002 0.050 0.386
LTT 3780
[Fe/H] 38 0.061 0.024 0.033 0.079 0.017 0.104 0.138
[Mg/H] 8 0.074 0.062 0.132 0.055 0.002 0.018 0.157
[Si/H] 6 0.202 0.108 0.189 0.065 0.002 0.025 0.229
GJ 357
[Fe/H] 44 -0.117 0.039 0.039 0.075 0.011 0.078 0.122
[Mg/H] 6 -0.266 0.063 0.063 0.069 0.010 0.023 0.115
[Si/H] 6 -0.261 0.070 0.122 0.065 0.002 0.054 0.164
HD 260655
[Fe/H] 72 -0.477 0.034 0.033 0.031 0.013 0.022 0.062
[Mg/H] 7 -0.319 0.046 0.060 0.046 0.014 0.030 0.094
[Si/H] 14 -0.568 0.023 0.098 0.047 0.002 0.023 0.113
L 98-59
[Fe/H] 46 -0.287 0.045 0.063 0.109 0.016 0.062 0.148
[Mg/H] 9 -0.336 0.058 0.188 0.051 0.008 0.026 0.205
[Si/H] 6 -0.274 0.100 0.208 0.155 0.006 0.024 0.279
LHS 1140
[Fe/H] 17 -0.250 0.069 0.027 0.080 0.012 0.013 0.110
[Mg/H]1 4 0.066 0.103 0.091 0.013 0.001 0.007 0.138
[Si/H]1 1 0.570 - 0.045 0.014 0.000 0.006 0.048
[Ti/H] 35 -0.304 0.042 0.045 0.101 0.010 0.016 0.120
TOI-270
[Fe/H] 61 -0.142 0.032 0.059 0.060 0.010 0.072 0.116
[Mg/H] 8 -0.312 0.047 0.104 0.060 0.011 0.026 0.132
[Si/H] 6 -0.195 0.063 0.164 0.090 0.001 0.034 0.191

This table details the results of the stellar abundance calculations we discuss here. σrand refers to the standard deviation of the mean abundance of all the lines of a corresponding element. The final elemental abundances and uncertainties are set in bold, to distinguish them from the individual sources of error.

1 The [Mg/H] and [Si/H] abundances for GJ 1132 and LHS 1140 are not considered reliable, due to the low number of spectral lines used and their poor quality, and is reported here for completeness only; see Section 3.2 for more details.

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.