LEGA-C stellar population scaling relations - II. Dissecting mass-complete archaeological trends and their evolution since z ∼ 0.7 with LEGA-C and SDSS

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Volume 708 (April 2026)

A&A, 708 (2026) A290

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Table B.1.

Median trends of light-weighted age and stellar metallicity as a function of stellar mass as shown in Fig.2.

QUIESCENT galaxies

silver sample, weighted by `Tcor` × `w`_`spec`_`silver`
log(M_*/M_⊙)	log < Age/yr> _r			< 2 × σ_{log Age}>	log < Z_*/Z_⊙> _r			< 2 × σ_{log Z_*}>
	p50	p16	p84		p50	p16	p84

10.31	$9 . 36_{0.08}^{0.06}$ $Mathematical equation: $ 9.36^{0.06}_{0.08} $$	9.21	9.56	0.35	$0 . 07_{0.09}^{0.03}$ $Mathematical equation: $ 0.07^{0.03}_{0.09} $$	−0.01	0.30	0.51
10.51	$9 . 38_{0.04}^{0.05}$ $Mathematical equation: $ 9.38^{0.05}_{0.04} $$	9.15	9.55	0.35	$0 . 24_{0.03}^{0.06}$ $Mathematical equation: $ 0.24^{0.06}_{0.03} $$	−0.05	0.37	0.44
10.71	$9 . 47_{0.02}^{0.03}$ $Mathematical equation: $ 9.47^{0.03}_{0.02} $$	9.31	9.60	0.38	$0 . 27_{0.03}^{0.04}$ $Mathematical equation: $ 0.27^{0.04}_{0.03} $$	0.07	0.44	0.39
10.91	$9 . 49_{0.03}^{0.04}$ $Mathematical equation: $ 9.49^{0.04}_{0.03} $$	9.30	9.64	0.36	$0 . 30_{0.02}^{0.05}$ $Mathematical equation: $ 0.30^{0.05}_{0.02} $$	0.04	0.41	0.35
11.11	$9 . 59_{0.02}^{0.04}$ $Mathematical equation: $ 9.59^{0.04}_{0.02} $$	9.39	9.72	0.32	$0 . 32_{0.03}^{0.06}$ $Mathematical equation: $ 0.32^{0.06}_{0.03} $$	−0.02	0.49	0.31
11.31	$9 . 64_{0.02}^{0.02}$ $Mathematical equation: $ 9.64^{0.02}_{0.02} $$	9.52	9.75	0.31	$0 . 39_{0.02}^{0.04}$ $Mathematical equation: $ 0.39^{0.04}_{0.02} $$	0.20	0.51	0.29
11.51	$9 . 69_{0.02}^{0.03}$ $Mathematical equation: $ 9.69^{0.03}_{0.02} $$	9.61	9.75	0.26	$0 . 21_{0.09}^{0.15}$ $Mathematical equation: $ 0.21^{0.15}_{0.09} $$	−0.25	0.49	0.23

golden sample

log(M_*/M_⊙)	log < Age/yr> _r			< 2 × σ_{log Age}>	log < Z_*/Z_⊙> _r	< 2 × σ_{log Z_*}>
	p50	p16	p84		p50	p16	p84

10.51	$9 . 34_{0.04}^{0.06}$ $Mathematical equation: $ 9.34^{0.06}_{0.04} $$	9.20	9.43	0.32	$0 . 27_{- 0.05}^{+ 0.03}$ $Mathematical equation: $ 0.27^{+0.03}_{-0.05} $$	0.19	0.40	0.38
10.71	$9 . 50_{0.04}^{0.06}$ $Mathematical equation: $ 9.50^{0.06}_{0.04} $$	9.29	9.62	0.31	$0 . 28_{- 0.05}^{+ 0.05}$ $Mathematical equation: $ 0.28^{+0.05}_{-0.05} $$	0.11	0.45	0.38
10.91	$9 . 48_{0.03}^{0.03}$ $Mathematical equation: $ 9.48^{0.03}_{0.03} $$	9.36	9.60	0.36	$0 . 30_{- 0.03}^{+ 0.05}$ $Mathematical equation: $ 0.30^{+0.05}_{-0.03} $$	0.12	0.44	0.33
11.11	$9 . 60_{0.03}^{0.04}$ $Mathematical equation: $ 9.60^{0.04}_{0.03} $$	9.41	9.73	0.32	$0 . 41_{- 0.02}^{+ 0.07}$ $Mathematical equation: $ 0.41^{+0.07}_{-0.02} $$	0.04	0.49	0.27
11.31	$9 . 64_{0.02}^{0.03}$ $Mathematical equation: $ 9.64^{0.03}_{0.02} $$	9.52	9.73	0.31	$0 . 43_{- 0.02}^{+ 0.04}$ $Mathematical equation: $ 0.43^{+0.04}_{-0.02} $$	0.25	0.51	0.26
11.51	$9 . 66_{0.03}^{0.01}$ $Mathematical equation: $ 9.66^{0.01}_{0.03} $$	9.62	9.75	0.28	$0 . 28_{- 0.07}^{+ 0.13}$ $Mathematical equation: $ 0.28^{+0.13}_{-0.07} $$	−0.12	0.49	0.24

STAR-FORMING galaxies

silver sample, weighted by `Tcor` × `w`_`spec`_`silver`

log(M_*/M_⊙)	log < Age/yr> _r			< 2 × σ_{log Age}>	log < Z_*/Z_⊙> _r	< 2 × σ_{log Z_*}>
	p50	p16	p84		p50	p16	p84

10.11	$9 . 08_{- 0.03}^{+ 0.06}$ $Mathematical equation: $ 9.08^{+0.06}_{-0.03} $$	8.88	9.19	0.29	$- 0 . 42_{- 0.05}^{+ 0.14}$ $Mathematical equation: $ -0.42^{+0.14}_{-0.05} $$	−0.92	−0.24	0.93
10.31	$9 . 14_{- 0.03}^{+ 0.04}$ $Mathematical equation: $ 9.14^{+0.04}_{-0.03} $$	8.91	9.28	0.31	$- 0 . 05_{- 0.06}^{+ 0.08}$ $Mathematical equation: $ -0.05^{+0.08}_{-0.06} $$	−0.46	0.27	0.88
10.51	$9 . 14_{- 0.02}^{+ 0.03}$ $Mathematical equation: $ 9.14^{+0.03}_{-0.02} $$	9.00	9.25	0.32	$0 . 03_{- 0.04}^{+ 0.07}$ $Mathematical equation: $ 0.03^{+0.07}_{-0.04} $$	−0.34	0.27	0.72
10.71	$9 . 19_{- 0.01}^{+ 0.03}$ $Mathematical equation: $ 9.19^{+0.03}_{-0.01} $$	9.01	9.28	0.32	$0 . 13_{- 0.03}^{+ 0.09}$ $Mathematical equation: $ 0.13^{+0.09}_{-0.03} $$	−0.43	0.35	0.59
10.91	$9 . 19_{- 0.04}^{+ 0.02}$ $Mathematical equation: $ 9.19^{+0.02}_{-0.04} $$	9.05	9.47	0.31	$0 . 02_{- 0.06}^{+ 0.10}$ $Mathematical equation: $ 0.02^{+0.10}_{-0.06} $$	−0.62	0.38	0.56
11.11	$9 . 26_{- 0.03}^{+ 0.02}$ $Mathematical equation: $ 9.26^{+0.02}_{-0.03} $$	9.15	9.41	0.32	$0 . 23_{- 0.04}^{+ 0.08}$ $Mathematical equation: $ 0.23^{+0.08}_{-0.04} $$	−0.21	0.46	0.50
11.31	$9 . 25_{- 0.08}^{+ 0.06}$ $Mathematical equation: $ 9.25^{+0.06}_{-0.08} $$	9.04	9.53	0.29	$0 . 36_{- 0.02}^{+ 0.09}$ $Mathematical equation: $ 0.36^{+0.09}_{-0.02} $$	0.03	0.45	0.38
11.51	$9 . 28_{- 0.21}^{+ 0.08}$ $Mathematical equation: $ 9.28^{+0.08}_{-0.21} $$	9.08	9.75	0.29	$0 . 30_{- 0.08}^{+ 0.44}$ $Mathematical equation: $ 0.30^{+0.44}_{-0.08} $$	−0.69	0.48	0.31

golden sample

log(M_*/M_⊙)	log < Age/yr> _r			< 2 × σ_{log Age}>	log < Z_*/Z_⊙> _r	< 2 × σ_{log Z_*}>
	p50	p16	p84		p50	p16	p84

10.11	$9 . 12_{- 0.01}^{+ 0.01}$ $Mathematical equation: $ 9.12^{+0.01}_{-0.01} $$	9.09	9.15	0.26	$- 0 . 48_{- 0.16}^{+ 0.22}$ $Mathematical equation: $ -0.48^{+0.22}_{-0.16} $$	−0.98	−0.12	0.70
10.31	$9 . 11_{- 0.02}^{+ 0.05}$ $Mathematical equation: $ 9.11^{+0.05}_{-0.02} $$	8.97	9.17	0.31	$- 0 . 21_{- 0.10}^{+ 0.15}$ $Mathematical equation: $ -0.21^{+0.15}_{-0.10} $$	−0.61	0.07	0.89
10.51	$9 . 13_{- 0.02}^{+ 0.04}$ $Mathematical equation: $ 9.13^{+0.04}_{-0.02} $$	8.96	9.22	0.30	$0 . 01_{- 0.08}^{+ 0.10}$ $Mathematical equation: $ 0.01^{+0.10}_{-0.08} $$	−0.41	0.33	0.68
10.71	$9 . 19_{- 0.02}^{+ 0.04}$ $Mathematical equation: $ 9.19^{+0.04}_{-0.02} $$	9.02	9.27	0.30	$0 . 16_{- 0.05}^{+ 0.10}$ $Mathematical equation: $ 0.16^{+0.10}_{-0.05} $$	−0.31	0.40	0.55
10.91	$9 . 19_{- 0.04}^{+ 0.04}$ $Mathematical equation: $ 9.19^{+0.04}_{-0.04} $$	9.02	9.39	0.31	$0 . 25_{- 0.03}^{+ 0.10}$ $Mathematical equation: $ 0.25^{+0.10}_{-0.03} $$	−0.22	0.41	0.49
11.11	$9 . 24_{- 0.04}^{+ 0.02}$ $Mathematical equation: $ 9.24^{+0.02}_{-0.04} $$	9.15	9.43	0.32	$0 . 26_{- 0.05}^{+ 0.07}$ $Mathematical equation: $ 0.26^{+0.07}_{-0.05} $$	−0.04	0.47	0.38
11.31	$9 . 30_{- 0.09}^{+ 0.05}$ $Mathematical equation: $ 9.30^{+0.05}_{-0.09} $$	9.13	9.58	0.29	$0 . 39_{- 0.03}^{+ 0.06}$ $Mathematical equation: $ 0.39^{+0.06}_{-0.03} $$	0.21	0.49	0.38
11.51	$9 . 48_{- 0.13}^{+ 0.11}$ $Mathematical equation: $ 9.48^{+0.11}_{-0.13} $$	9.25	9.75	0.29	$0 . 44_{- 0.02}^{+ 0.16}$ $Mathematical equation: $ 0.44^{+0.16}_{-0.02} $$	0.11	0.48	0.28

Notes. Median (p50) and percentiles (p16, p84) of the light-weighted age and stellar metallicity in bins of stellar mass for quiescent and star-forming galaxies belonging to the silver sample (weighted for volume and spectroscopic completeness) and to the golden sample. The mean uncertainties, expressed as twice the inter-percentile range of the parameter PDF, are also provided (< 2 × σ_{log Age}>, <2 × σ_{log Z_*}>).

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