Differences in baryonic and dark matter scaling relations of galaxy clusters: A comparison between IllustrisTNG simulations and observations

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Volume 698 (June 2025)

A&A, 698 (2025) A237

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Table 5.

Fit values of SPL, BPL and GDPL models.

Comparison type	Hot-gas and r_op stars		All-gas and all stars

Simulation	TNG100	TNG300	TNG100	TNG300
${log}_{10} (A_{SPL})$ $\log _{10} \left (A_{\mathrm {SPL}}\right )$	−4.70±0.60	−3.11±0.26	−1.79±0.18	−2.15±0.15
α_SPL	0.27±0.04	0.16±0.02	0.07±0.01	0.09±0.01
$χ_{SPL}^{2}$ $\chi ^{2}_{\mathrm {SPL}}$	0.033	0.017	0.004	0.006

${log}_{10} (A_{BPL})$ $\log _{10} \left (A_{\mathrm {BPL}}\right )$	−0.88±0.01	−0.86±0.01	−0.82±0.01	−0.84±0.01
α_BPL,1	0.79±0.07	0.35±0.03	0.14±0.02	0.22±0.03
α_BPL,2	0.06±0.03	0.05±0.01	0.00±0.02	0.04±0.01
$χ_{BPL}^{2}$ $\chi ^{2}_{\mathrm {BPL}}$	0.004	0.002	0.002	0.001

${log}_{10} (A_{GDPL})$ $\log _{10} \left (A_{\mathrm {GDPL}}\right )$	−0.93±0.01	−0.88±0.01	−0.84±0.01	−0.85±0.01
α_GDPL,1	0.79±0.12	0.35±0.04	0.14±0.09	0.22±0.04
α_GDPL,2	0.06±0.08	0.05±0.03	0.00±0.09	0.04±0.02
δ	0.25±0.18	0.25±0.22	0.25±0.81	0.25±0.30
$χ_{GDPL}^{2}$ $\chi ^{2}_{\mathrm {GDPL}}$	0.005	0.002	0.002	0.002

${log}_{10} (M_{pivot} / M_{⊙})$ $\log _{10}\left (M_{\mathrm {pivot}} /{\mathrm {M_{\odot }}} \right )$	13.80±0.03	14.07±0.04	13.97±0.08	13.99±0.06

Notes. Power values of α_SPL SPL fits, α_BPL,1 and α_BPL,2 BLP fits, and α_GDPL,1 and α_GDPL,2 GDPL fits, with the GDPL smoothness parameter δ and M_pivot value of Fig. 5. Also, it is included the χ² test of each models.

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