Stellar atmosphere parameters with MAχ, a MAssive compression of χ2 for spectral fitting

Free Access

Table 2:

Offsets ( $\Delta$ ) and scatter ( $\sigma$ ) of the differences (raw - column) between the methods: MA $\chi$ (this work).
	ADOP	NGS1	ANNSR	k24
	$\Delta / \sigma$	$\Delta / \sigma$	$\Delta / \sigma$	$\Delta / \sigma$
[Fe/H]
MA $\chi$	-0.32 / 0.23	-0.41 / 0.29	-0.17 / 0.33	-0.34 / 0.26
k24	0.04 / 0.14	-0.07 / 0.25	0.17 / 0.27
ANNSR	-0.13 / 0.22	-0.22 / 0.23
NGS1	0.08 / 0.17
${T_{\rm eff}}$
MA $\chi$	-61 / 112	80 / 132	-76 / 170	-159 / 160
k24	98 / 101	244 / 166	88 / 195
ANNSR	1 / 114	147 / 173
NGS1	-142 / 93
$\log g$
MA $\chi$	0.51 / 0.39	0.38 / 0.43	0.63 / 0.47	0.41 / 0.48
k24	0.08 / 0.35	-0.02 / 0.42	0.26 / 0.48
ANNSR	-0.14 / 0.36	-0.27 / 0.45
NGS1	0.09 / 0.23

Notes. ADOP (Lee et al. 2008a), NGS1 (Lee et al. 2008a), ANNSR(Re Fiorentin et al. 2007) and k24 (Allende Prieto et al. 2006) for the entire sample of selected SEGUE stars.

Source LaTeX | All tables | In the 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.