2006A&A...447..113L

Query : 2006A&A...447..113L

2006A&A...447..113L - Astronomy and Astrophysics, volume 447113-119 (2006/2-3)

Significant evolution of the stellar mass-metallicity relation since z ∼ 0.65.

LIANG Y.C., HAMMER F. and FLORES H.

Abstract (from CDS):

We present the stellar mass-metallicity relation for 34 0.4<z<1 galaxies selected from CFRS and Marano fields, and compare it to those derived from three local samples of galaxies (NFGS, KISS and SDSS). Our metal abundance estimates account for extinction effects, as estimated from IR/optical ratios and Balmer line ratios. All three comparisons show that the intermediate mass galaxies at z∼0.65 are more metal-deficient by 0.3dex at a given MK or stellar mass relative to z=0. We find no evidence that this discrepancy could be related to different methods used to derive mass and metallicity. Assuming a closed box model predicts a gas fraction converted into stars of 20-25% since z∼0.65, if the gas fraction is 10-20% in present-day galaxies with intermediate masses. This result is in excellent agreement with previous findings that most of the decline of the cosmic star formation density is related to the population of intermediate mass galaxies, which is composed of 75% spirals today. We find no evidence for a change of the slope of the Mstar-Z relation from z∼0.65 to z=0 within the intermediate mass range (10.5<log(M*)<11.5).

Abstract Copyright: ∼

Journal keyword(s): galaxies: abundances - galaxies: evolution - galaxies: ISM - galaxies: spiral - galaxies: starburst - galaxies: stellar content

Simbad objects: 50

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Number of rows : 50
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 2SLAQ J000228.90-004142.8 G 00 02 28.912 -00 41 42.88           ~ 5 0
2 CFRS 00.0564 G 00 02 36.77 -00 38 07.0           ~ 6 0
3 GOODS J030225.28+001325.1 EmG 03 02 25.285 +00 13 25.13   23.39 22.91   22.00 ~ 14 0
4 [LHF2004] CFRS 33 EmG 03 02 26.86 +00 10 55.0         22.01 ~ 5 0
5 [LHF2004] CFRS 31 EmG 03 02 27.20 +00 13 56.0         20.96 ~ 7 0
6 [LHF2004] CFRS 32 EmG 03 02 27.53 +00 10 57.0         22.31 ~ 5 0
7 [LHF2004] CFRS 29 EmG 03 02 29.41 +00 12 59.0         21.16 ~ 9 0
8 [LHF2004] CFRS 26 EmG 03 02 31.53 +00 14 03.3         23.29 ~ 4 0
9 [LHF2004] CFRS 25 EmG 03 02 33.14 +00 11 05.2         21.37 ~ 5 0
10 CFRS 03.0595 G 03 02 33.81 +00 12 48.0           ~ 11 0
11 [LHF2004] CFRS 22 EmG 03 02 34.41 +00 13 31.0         22.18 ~ 9 0
12 CFRS 03.0570 G 03 02 35.58 +00 13 39.0           ~ 12 0
13 [LHF2004] CFRS 16 EmG 03 02 38.80 +00 14 17.0         21.47 ~ 6 0
14 [LHF2004] CFRS 17 EmG 03 02 39.18 +00 10 35.0         22.37 ~ 5 0
15 GOODS J030239.38+001327.1 G 03 02 39.375 +00 13 27.14           ~ 16 0
16 [LHF2004] CFRS 15 EmG 03 02 39.72 +00 13 21.0         21.81 ~ 8 0
17 [LHF2004] CFRS 14 EmG 03 02 40.44 +00 14 03.0         20.95 ~ 8 0
18 [LHF2004] CFRS 11 EmG 03 02 43.38 +00 12 09.5         21.85 ~ 6 0
19 CFRS 03.1540 G 03 02 43.65 +00 12 10.0           ~ 11 0
20 [LHF2004] CFRS 10 EmG 03 02 44.57 +00 12 20.0         20.64 ~ 10 0
21 CFRS 03.0442 G 03 02 44.89 +00 13 45.0           ~ 7 0
22 GOODS J030245.67+001027.9 G 03 02 45.629 +00 10 27.95           ~ 13 0
23 [LHF2004] CFRS 8 EmG 03 02 46.29 +00 13 53.0         21.21 ~ 9 0
24 GOODS J030249.10+001002.1 EmG 03 02 49.099 +00 10 02.13   22.734 22.143   20.483 ~ 20 0
25 GOODS J030252.03+001033.4 EmG 03 02 52.028 +00 10 33.36   23.213 22.220   19.841 ~ 18 0
26 [LHF2004] UDSF 16 EmG 03 13 08.0 -55 04 18       20.39   ~ 6 0
27 [LHF2004] UDSF 7 EmG 03 13 17.3 -55 05 16       22.37   ~ 4 0
28 [LHF2004] UDSF 2 EmG 03 13 23.3 -55 05 15       22.57   ~ 3 0
29 [LHF2004] UDSF 3 EmG 03 13 33.6 -55 04 27       21.54   ~ 4 0
30 [LHF2004] UDSR 23 EmG 03 14 32.1 -55 19 02       21.12   ~ 3 0
31 [LHF2004] UDSR 15 EmG 03 14 36.3 -55 21 02       21.51   ~ 2 0
32 [LHF2004] UDSR 26 EmG 03 14 36.7 -55 17 32       21.08   ~ 2 0
33 [LHF2004] UDSR 14 EmG 03 14 43.3 -55 20 11       21.56   ~ 3 0
34 [LHF2004] UDSR 10 EmG 03 14 43.9 -55 21 35       20.84   ~ 3 0
35 [LHF2004] UDSR 8 EmG 03 14 55.2 -55 20 31       21.60   ~ 3 0
36 CFRS 22.1064 G 22 17 43.08 +00 15 08.3 24.5685 23.7603 22.9382 22.1499 21.7575 ~ 17 0
37 GOODS J221746.48+001653.5 G 22 17 46.48 +00 16 53.5   22.51 21.92     ~ 16 0
38 SDSS J221748.48+001759.8 G 22 17 48.484 +00 17 59.88   23.4199 22.6810 21.9862 21.5744 ~ 9 0
39 CFRS 22.0779 G 22 17 50.05 +00 17 32.0   23.5603 22.7225 22.0383 21.8230 ~ 12 0
40 CFRS 22.0637 G 22 17 54.01 +00 21 26.7           ~ 10 0
41 SDSS J221755.25+001656.4 G 22 17 55.258 +00 16 56.43 23.1538 22.8184 22.4768 21.9569 21.4548 ~ 15 0
42 CFRS 22.0576 G 22 17 55.92 +00 16 57.9   23.35 22.89     ~ 11 0
43 CFRS 22.0429 G 22 17 59.98 +00 17 54.0   24.02 23.46     ~ 13 0
44 CFRS 22.0344 G 22 18 02.15 +00 17 38.6           ~ 5 0
45 CFRS 22.0242 G 22 18 04.89 +00 18 04.1           ~ 4 0
46 CFRS 00.1721 ? ~ ~           ~ 2 0
47 CFRS 22.0626 ? ~ ~           ~ 2 0
48 CFRS 22.0721 ? ~ ~           ~ 2 0
49 CFRS 22.1070 ? ~ ~           ~ 2 0
50 CFRS 00.0141 ? ~ ~           ~ 2 0

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