**Table 1:** The sample of observed early-type galaxies from the K20 survey.
K20 name	z	R	$R-K_{\rm s}$	n	K_V	$R_{\rm e}$	$\langle\mu^B\rangle_{\rm e}$	$\sigma$	EW[OII]	M_B	$\log{{{\cal M}_{{\rm K}_{\rm V}}}\over{\cal M_{\odot}}}$
						kpc	mag/arcsec²	km s^-1	Å
CDFS_00060	1.188	24.89	5.56
CDFS_00369	0.8930	23.30	4.14	1.85 $\pm$ 0.39	7.37 $\pm$ 0.18	0.84 $\pm$ 0.05	17.78 $\pm$ 0.15	119 $\pm$ 21	9.0 $\pm$ 1.1	-20.41	10.31 $\pm$ 0.15
CDFS_00467	0.8956	22.90	4.63	3.45 $\pm$ 0.39	5.72 $\pm$ 0.25	1.52 $\pm$ 0.10	18.40 $\pm$ 0.15	140 $\pm$ 18	4.3 $\pm$ 0.8	-21.09	10.58 $\pm$ 0.11
CDFS_00468	1.019	24.86	5.03
CDFS_00532	1.2115	23.92	5.22	2.04 $\pm$ 0.33	6.82 $\pm$ 0.20	1.41 $\pm$ 0.10	17.43 $\pm$ 0.16	260 $\pm$ 30	2.5 $\pm$ 0.5	-21.89	11.16 $\pm$ 0.10
CDFS_00547	1.2243	23.68	5.07	1.90 $\pm$ 0.31	7.50 $\pm$ 0.14	0.74 $\pm$ 0.04	16.15 $\pm$ 0.14	256 $\pm$ 28	2.3 $\pm$ 0.4	-21.76	10.93 $\pm$ 0.10
CDFS_00571	0.9551	22.33	4.79	5.00 $\pm$ 0.15	3.83 $\pm$ 0.02	6.81 $\pm$ 0.48	20.65 $\pm$ 0.16	182 $\pm$ 21	3.7 $\pm$ 0.5	-22.08	11.23 $\pm$ 0.10
CDFS_00590	1.2235	24.35	5.28	4.98 $\pm$ 0.25	4.03 $\pm$ 0.12	4.09 $\pm$ 0.52	20.54 $\pm$ 0.29	119 $\pm$ 49	4.1 $\pm$ 1.1	-21.09	10.68 $\pm$ 0.36
CDFS_00633	1.0963	22.43	5.49	4.78 $\pm$ 0.21	4.00 $\pm$ 0.12	6.65 $\pm$ 0.12	19.97 $\pm$ 0.05	260 $\pm$ 23	<1.4	-22.71	11.55 $\pm$ 0.08
CDFS_00354	0.6672	22.01	4.07	3.58 $\pm$ 0.28	5.20 $\pm$ 0.20	3.08 $\pm$ 0.12	20.39 $\pm$ 0.09	99 $\pm$ 19	2.6 $\pm$ 0.6^*	-20.61	10.52 $\pm$ 0.17
q0055_00028	1.0524	24.19	5.09	0.8 $\pm$ 0.8	7.17 $\pm$ 0.48	1.17 $\pm$ 0.65	18.08 $\pm$ 1.22	227 $\pm$ 30	<3.6	-20.82	10.99 $\pm$ 0.26
q0055_00068	1.1043	23.53	5.18	4.3 $\pm$ 1.0	4.55 $\pm$ 0.73	3.60 $\pm$ 1.00	19.75 $\pm$ 0.61	84 $\pm$ 31	2.3 $\pm$ 0.7	-21.60	10.37 $\pm$ 0.34
q0055_00114	0.8891	23.48	4.33	2.0 $\pm$ 2.0	6.71 $\pm$ 1.78	2.43 $\pm$ 0.74	19.99 $\pm$ 0.66	52 $\pm$ 22	<2.1	-20.50	9.98 $\pm$ 0.38
q0055_00123	0.9270	22.96	4.84	3.8 $\pm$ 1.0	5.69 $\pm$ 0.67	1.23 $\pm$ 0.40	17.62 $\pm$ 0.71	186 $\pm$ 19	1.6 $\pm$ 0.5	-21.39	10.74 $\pm$ 0.16
q0055_00247	0.931	24.43	4.54						<2.8
q0055_00295	1.1680	23.75	5.59	4.8 $\pm$ 0.3	4.35 $\pm$ 0.20	2.67 $\pm$ 0.70	18.93 $\pm$ 0.57	170 $\pm$ 28	<1.4	-21.77	10.85 $\pm$ 0.18
q0055_00318	0.8962	23.87	5.07	4.5 $\pm$ 1.1	5.17 $\pm$ 0.70	1.26 $\pm$ 0.57	18.87 $\pm$ 0.99	105 $\pm$ 30	<0.8^*	-20.20	10.21 $\pm$ 0.31
q0055_00331	0.8980	22.95	5.09	4.9 $\pm$ 0.3	4.15 $\pm$ 0.19	3.83 $\pm$ 0.77	20.08 $\pm$ 0.44	216 $\pm$ 46	<0.8^*	-21.40	11.18 $\pm$ 0.19
q0055_00338	0.9324	23.12	4.96	2.8 $\pm$ 0.6	5.93 $\pm$ 0.50	2.41 $\pm$ 0.43	19.23 $\pm$ 0.39	113 $\pm$ 19	<2.5	-21.24	10.59 $\pm$ 0.16
q0055_00169	0.6699	22.70	4.23	1.3 $\pm$ 0.8	7.15 $\pm$ 0.62	1.64 $\pm$ 0.36	19.50 $\pm$ 0.47	90 $\pm$ 19	<0.9^*	-20.14	10.32 $\pm$ 0.20

$\textstyle \parbox{16.5cm}{ $^*$\space For [OIII]5007. }$

Source LaTeX | All tables | In the text

	1 Introduction
	2 Sample selection and observations
	3 Data analysis
	4 Results
	5 Discussion
	6 Conclusions
	References
	Online Material