From simulations to observations: Methodology and data release of mock TNG50 galaxies at 0.3 < z < 0.7 for WEAVE-StePS

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Volume 703 (November 2025)

A&A, 703 (2025) A37

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Table C.1.

Mass-weighted ages and metallicities of the central part of the example galaxies extended with assigned values.

z	ID	Class	age $_{sim}^{intrinsic}$ $_{\mathrm{sim}}^{\mathrm{intrinsic}}$	age $_{sim}^{assigned}$ $_{\mathrm{sim}}^{\mathrm{assigned}}$	age $_{obs}^{fibre}$ $_{\mathrm{obs}}^{\mathrm{fibre}}$	[Z/H] $_{sim}^{intrinsic}$ $_{\mathrm{sim}}^{\mathrm{intrinsic}}$	[Z/H] $_{sim}^{assigned}$ $_{\mathrm{sim}}^{\mathrm{assigned}}$	[Z/H] $_{obs}^{fibre}$ $_{\mathrm{obs}}^{\mathrm{fibre}}$
			[Gyr]	[Gyr]	[Gyr]	[dex]	[dex]	[dex]
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)
0.7	172231	SF	3.39	3.42	4.0 ± 0.2	0.26	0.15	−0.56 ± 0.04
0.5	218606	SF	4.28	4.36	4.6 ± 0.3	0.29	0.18	−0.02 ± 0.02
0.3	251598	GV	6.31	6.35	6.0 ± 0.3	0.31	0.18	0.06 ± 0.03

0.7	222130	GV	4.50	4.55	4.7 ± 0.2	0.29	0.15	−0.08 ± 0.02
0.5	234935	GV	5.94	6.02	6.0 ± 0.3	0.31	0.16	0.09 ± 0.02
0.3	277675	SF	7.38	7.46	8.0 ± 0.4	0.32	0.17	0.02 ± 0.03

0.7	212087	Q	5.53	5.67	5.6 ± 0.1	0.28	0.14	0.04 ± 0.01
0.5	253460	GV	6.84	6.99	7.0 ± 0.2	0.29	0.14	0.04 ± 0.01
0.3	298351	SF	8.59	8.57	8.5 ± 0.2	0.31	0.16	0.08 ± 0.01

Notes. (1) Redshift. (2) Galaxy ID. (3) Class: SF = star forming, GV = green valley, Q = quiescent. (4) Mass-weighted age of the central 1.3 arcsec derived from TNG50. (5) Mass-weighted age of the central 1.3 arcsec assigned by SKIRT. (6) Mass-weighted age of the central 1.3 arcsec derived with pPXF from noiseless spectra. (7) Mass-weighted metallicity of the central 1.3 arcsec derived from TNG50. (8) Mass-weighted metallicity of the central 1.3 arcsec assigned by SKIRT. (9) Mass-weighted metallicity of the central 1.3 arcsec derived with pPXF from noiseless spectra.

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