EDP Sciences logo
Subscriber Authentication Point
Search
Menu
Home All issues Volume 696 (April 2025) A&A, 696 (2025) A78 Full HTML
Open Access

Table 5.

Coefficients of the scaling relations: y = ax + b (dashed lines in Figs. 20–C.11).

x y a b ρ σ P-value
log SFR [M⊙ yr−1] log N.HII≥37 0.87 ± 0.04 2.83 ± 0.07 0.94 0.21 < 0.0005
log L(Hα)1 0.74 ± 0.06 40.03 ± 1.48 0.92 0.29 < 0.0005
log ⟨L(Hα)3⟩ 0.76 ± 0.05 39.85 ± 1.42 0.94 0.24 < 0.0005
log L(Hα)1/L(Hα) −0.48 ± 0.11 −1.63 ± 0.13 −0.67 0.34 < 0.0005
log L(Hα)3/L(Hα) −0.44 ± 0.13 −1.25 ± 0.12 −0.64 0.30 < 0.0005
α 0.75 ± 0.20 −1.22 ± 0.29 0.37 0.40 0.05
Φ* 1.76 ± 0.17 1.49 ± 0.16 0.72 0.44 < 0.0005
log Mstar [M⊙] log N.HII≥37 0.85 ± 0.05 −5.78 ± 0.21 0.88 0.27 < 0.0005
log L(Hα)1 0.73 ± 0.09 32.62 ± 2.66 0.69 0.50 < 0.0005
log ⟨L(Hα)3⟩ 0.68 ± 0.10 32.89 ± 2.78 0.76 0.43 < 0.0005
log L(Hα)1/L(Hα) −0.46 ± 0.10 3.02 ± 0.21 −0.79 0.29 < 0.0005
log L(Hα)3/L(Hα) −0.39 ± 0.12 2.70 ± 0.16 −0.80 0.25 < 0.0005
Φ* 1.63 ± 0.20 −15.14 ± 1.52 0.57 0.57 0.005
log μSFR [M⊙ yr−1 kpc−2] log L(Hα)1 1.13 ± 0.11 41.92 ± 1.92 0.60 0.49 < 0.0005
log ⟨L(Hα)3⟩ 1.08 ± 0.12 41.66 ± 2.36 0.43 0.55 < 0.0005
log L(Hα)≥37/L(Hα) 0.28 ± 0.21 0.55 ± 0.10 0.66 0.16 < 0.0005
α 0.84 ± 0.13 0.63 ± 0.29 0.76 0.23 < 0.0005
Φ* 2.15 ± 0.21 6.33 ± 0.53 0.61 0.43 0.001
log μstar [M⊙ kpc−2] log L(Hα)1 1.28 ± 0.13 29.39 ± 2.20 0.39 0.53 0.002
log ⟨L(Hα)3⟩ 1.22 ± 0.13 29.77 ± 2.44 0.37 0.51 0.002
log L(Hα)≥37/L(Hα) 0.44 ± 0.20 −3.48 ± 0.19 0.39 0.22 0.002
α 1.10 ± 0.16 −9.80 ± 0.79 0.63 0.26 0.001
Φ* 2.70 ± 0.28 −19.56 ± 1.92 0.61 0.36 0.001
log SSFR [yr−1] log L(Hα)≥37/L(Hα) 0.46 ± 0.18 4.37 ± 0.26 0.45 0.20 < 0.0005
log L(Hα)1/L(Hα) 1.02 ± 0.12 9.50 ± 0.70 0.27 0.43 0.023
log L(Hα)3/L(Hα) 0.99 ± 0.12 9.36 ± 0.66 0.46 0.32 0.001
α 1.23 ± 0.16 10.77 ± 1.26 0.49 0.27 0.01
12 + log (O/H) log L(Hα)≥37/L(Hα) −0.68 ± 0.17 5.46 ± 0.39 −0.53 0.14 0.015
log L(Hα)1/L(Hα) −2.11 ± 0.12 16.75 ± 0.82 −0.85 0.13 < 0.0005
log L(Hα)3/L(Hα) −1.81 ± 0.11 14.53 ± 0.72 −0.86 0.13 < 0.0005
log G/D log L(Hα)≥37/L(Hα) 0.58 ± 0.28 −1.53 ± 0.19 0.59 0.09 0.04

Notes. Bisector fit. The best-fit parameters are given here and shown in the figures only when the probability that the variables are correlated is larger than 95% (p-value of the null hypothesis < 0.05). ρ gives the Spearman correlation coefficient, σ the dispersion in the relations. Relations with L(Hα)≥37, L(Hα)1 are derived for the whole unperturbed sample of 64 objects, those with L(Hα)3 for a sample of 55 objects, with metallicity 39 objects, with the G/D ratio 15 objects, and with the output of the fit of the luminosity function 27 objects, respectively. p-values are derived using the Spearman’s ranked correlation coefficient (Scipy Python package).

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.