2009A&A...498..379D


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.08CET13:13:30

2009A&A...498..379D - Astronomy and Astrophysics, volume 498, 379-397 (2009/5-1)

The VIMOS VLT Deep Survey. Evolution of the major merger rate since z ∼ 1 from spectroscopically confirmed galaxy pairs.

DE RAVEL L., LE FEVRE O., TRESSE L., BOTTINI D., GARILLI B., LE BRUN V., MACCAGNI D., SCARAMELLA R., SCODEGGIO M., VETTOLANI G., ZANICHELLI A., ADAMI C., ARNOUTS S., BARDELLI S., BOLZONELLA M., CAPPI A., CHARLOT S., CILIEGI P., CONTINI T., FOUCAUD S., FRANZETTI P., GAVIGNAUD I., GUZZO L., ILBERT O., IOVINO A., LAMAREILLE F., McCRACKEN H.J., MARANO B., MARINONI C., MAZURE A., MENEUX B., MERIGHI R., PALTANI S., PELLO R., POLLO A., POZZETTI L., RADOVICH M., VERGANI D., ZAMORANI G., ZUCCA E., BONDI M., BONGIORNO A., BRINCHMANN J., CUCCIATI O., DE LA TORRE S., GREGORINI L., MEMEO P., PEREZ-MONTERO E., MELLIER Y., MERLUZZI P. and TEMPORIN S.

Abstract (from CDS):

The rate at which galaxies grow via successive mergers is a key element in understanding the main phases of galaxy evolution. We measure the evolution of the fraction of galaxies in pairs and the merging rate since redshift z∼1 assuming a (H0=70km/s/Mpc, ΩM=0.3 and ΩΛ=0.7) cosmology. From the VIMOS VLT Deep Survey we use a sample of 6464 galaxies with IAB≤24 to identify 314 pairs of galaxies, each member with a secure spectroscopic redshift, which are close in both projected separation and in velocity. We estimate that at z∼0.9, 10.9±3.2% of galaxies with MB(z)≤-18-Qz (Q=1.11) are in pairs with separations Δrp≤20h–1kpc, Δv≤500km/s, and with ΔMB≤1.5, significantly larger than 3.8±1.7% at z∼0.5; thus, the pair fraction evolves as (1+z)m with m=4.73±2.01. For bright galaxies with MB(z=0)≤-18.77, the pair fraction is higher and its evolution with redshift is flatter with m=1.50±0.76, a property also observed for galaxies with increasing stellar masses. Early-type pairs (dry mergers) increase their relative fraction from 3% at z∼0.9 to 12% at z∼0.5. The star formation rate traced by the rest-frame [OII] EW increases by 26±4% for pairs with the smallest separation rp≤20h–1kpc. Following published prescriptions to derive merger timescales, we find that the merger rate of MB(z)≤-18-Qz galaxies evolves as Nmg=(4.96 ±2.07)x10–4x(1+z)2.20±0.77mergers/Mpc3/Gyr. The merger rate of galaxies with MB(z)≤-18-Qz has significantly evolved since z∼1 and is strongly dependent on the luminosity or stellar mass of galaxies. The major merger rate increases more rapidly with redshift for galaxies with fainter luminosities or stellar mass, while the evolution of the merger rate for bright or massive galaxies is slower, indicating that the slow evolution reported for the brightest galaxies is not universal. The merger rate is also strongly dependent on the spectral type of galaxies involved. Late-type mergers were more frequent in the past, while early-type mergers are more frequent today, contributing to the rise in the local density of early-type galaxies. About 20% of the stellar mass in present day galaxies with log(M/M)≥9.5 has been accreted through major merging events since z=1. This indicates that major mergers have contributed significantly to the growth in stellar mass density of bright galaxies over the last half of the life of the Universe.

Abstract Copyright:

Journal keyword(s): galaxies: evolution - galaxies: interactions - galaxies: formation

Nomenclature: Table 2: [DLT2009] NN (Nos 1-36), [DLT2009] pHHNNNNNNN N=3.

Simbad objects: 108

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Number of rows : 108

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 VIDEO J022506.47-043327.12 GiP 02 25 06.48 -04 33 27.1           ~ 2 0
2 VIDEO J022506.64-043328.25 GiP 02 25 06.64 -04 33 27.9   23.281 23.171 23.096 22.616 ~ 6 0
3 [DLT2009] 7 PaG 02 25 06.642 -04 33 27.93           ~ 1 0
4 VIDEO J022509.23-044133.20 GiP 02 25 09.226 -04 41 32.86   27.373 27.816   22.976 ~ 6 0
5 [DLT2009] 13 PaG 02 25 09.226 -04 41 32.86           ~ 1 0
6 VVDS J022509.32-044133.3 GiP 02 25 09.329 -04 41 33.33   25.398 24.582 23.996 23.683 ~ 5 0
7 VIDEO J022544.43-043743.00 GiP 02 25 44.460 -04 37 42.87   22.245 21.405 21.201 21.040 ~ 6 0
8 [DLT2009] 16 PaG 02 25 44.718 -04 37 41.19           ~ 1 0
9 VIDEO J022544.68-043741.27 GiP 02 25 44.718 -04 37 41.19   22.795 21.838 21.643 21.336 ~ 6 0
10 [DLT2009] p020161356 GiP 02 25 50.8 -04 38 49           ~ 1 0
11 VIDEO J022550.82-043849.41 GiP 02 25 50.844 -04 38 49.30   22.969 22.550 22.295 21.637 ~ 7 0
12 [DLT2009] 14 PaG 02 25 50.844 -04 38 49.30           ~ 1 0
13 VIDEO J022551.56-043552.70 GiP 02 25 51.58 -04 35 52.4   24.102 23.197 22.337 21.659 ~ 5 0
14 VIDEO J022551.71-043551.01 GiP 02 25 51.72 -04 35 51.0   24.836 23.475 22.487 21.345 ~ 6 0
15 [DLT2009] 17 PaG 02 25 51.735 -04 35 50.70           ~ 1 0
16 VIDEO J022553.79-042933.48 GiP 02 25 53.821 -04 29 33.12   24.657 24.287 24.127 23.733 ~ 4 0
17 [DLT2009] 35 PaG 02 25 53.821 -04 29 33.12           ~ 1 0
18 [DLT2009] 33 PaG 02 25 53.946 -04 39 10.76           ~ 1 0
19 VIDEO J022553.93-043910.94 GiP 02 25 53.946 -04 39 10.76   24.749 24.431 23.898 23.504 ~ 5 0
20 VIDEO J022553.98-042933.71 GiP 02 25 53.98 -04 29 33.7           ~ 2 0
21 VIDEO J022554.12-043910.83 GiP 02 25 54.134 -04 39 10.62   23.929 23.661 23.246 22.868 ~ 5 0
22 VVDS J022604.31-042936.8 GiP 02 26 04.312 -04 29 36.82   25.093 24.518 24.390 23.554 ~ 4 0
23 [DLT2009] 10 PaG 02 26 04.403 -04 29 37.35           ~ 1 0
24 VIDEO J022604.38-042937.52 GiP 02 26 04.403 -04 29 37.35 24.538 24.593 24.084 23.926 22.849 ~ 5 0
25 VIDEO J022605.18-042352.58 GiP 02 26 05.19 -04 23 52.4   23.842 23.431 22.817 22.285 ~ 5 0
26 [DLT2009] 4 PaG 02 26 05.255 -04 23 48.32           ~ 1 0
27 VIDEO J022605.24-042348.45 GiP 02 26 05.26 -04 23 48.3   23.874 22.761 21.817 20.898 ~ 5 0
28 [DLT2009] 15 PaG 02 26 06.735 -04 38 38.55           ~ 1 0
29 VIDEO J022606.73-043838.93 GiP 02 26 06.735 -04 38 38.55   22.964 22.394 21.874 21.283 ~ 6 0
30 VIDEO J022606.74-043837.23 GiP 02 26 06.748 -04 38 36.91   22.826 22.242 21.687 21.266 ~ 6 0
31 VIDEO J022607.91-042859.48 GiP 02 26 07.917 -04 28 59.41           ~ 3 0
32 [DLT2009] 1 PaG 02 26 08.058 -04 28 59.67           ~ 1 0
33 VVDS J022608.05-042859.6 GiP 02 26 08.058 -04 28 59.67 24.037 23.827 23.644 23.341 22.366 ~ 5 0
34 VIDEO J022608.81-042857.54 GiP 02 26 08.83 -04 28 57.3   25.224 24.927 24.256 23.806 ~ 5 0
35 [DLT2009] 12 PaG 02 26 09.086 -04 28 57.97           ~ 1 0
36 VIDEO J022609.07-042858.11 GiP 02 26 09.086 -04 28 57.97   23.932 23.726 22.981 22.715 ~ 4 0
37 VIDEO J022612.63-044523.76 GiP 02 26 12.635 -04 45 23.63   25.438 24.662 24.025 23.359 ~ 6 0
38 [DLT2009] 24 PaG 02 26 12.725 -04 45 24.20           ~ 1 0
39 VIDEO J022612.72-044524.35 GiP 02 26 12.725 -04 45 24.20   23.893 23.786 23.139 22.555 ~ 7 0
40 VIDEO J022620.06-041712.26 GiP 02 26 20.085 -04 17 12.28 24.206 24.323 23.648 23.242 22.318 ~ 6 0
41 [DLT2009] 21 PaG 02 26 20.085 -04 17 12.28           ~ 1 0
42 VIDEO J022620.21-041712.52 GiP 02 26 20.233 -04 17 12.46 24.465 24.205 24.040 24.093 23.418 ~ 5 0
43 VVDS 020314107 GiP 02 26 20.50 -04 18 33.1   23.707 22.190 21.307 20.311 ~ 4 0
44 VIDEO J022620.56-041833.01 GiP 02 26 20.58 -04 18 33.0   23.069 22.159 21.380 20.479 ~ 5 0
45 [DLT2009] 5 PaG 02 26 20.580 -04 18 33.00           ~ 1 0
46 VIDEO J022622.83-043818.07 GiP 02 26 22.853 -04 38 17.89   23.462 23.013 22.758 23.089 ~ 5 0
47 [DLT2009] 28 PaG 02 26 22.853 -04 38 17.89           ~ 1 0
48 VIDEO J022622.84-043820.05 GiP 02 26 22.861 -04 38 19.82   23.616 23.312 23.206 23.847 ~ 6 0
49 VIDEO J022626.39-043114.81 GiP 02 26 26.408 -04 31 14.51   24.530 24.414 23.671 23.106 ~ 6 0
50 VIDEO J022626.62-043115.32 GiP 02 26 26.642 -04 31 15.05 24.501 24.268 24.580 24.175 23.293 ~ 6 0
51 [DLT2009] 29 PaG 02 26 26.642 -04 31 15.05           ~ 1 0
52 VVDS J022632.81-042300.7 GiP 02 26 32.812 -04 23 00.75   24.080 24.024 23.918 23.419 ~ 3 0
53 VIDEO J022632.86-042259.33 GiP 02 26 32.87 -04 22 59.1   24.048 24.168 24.018 23.428 ~ 5 0
54 [DLT2009] 26 PaG 02 26 32.873 -04 22 59.03           ~ 1 0
55 VIDEO J022635.27-043217.73 GiP 02 26 35.284 -04 32 17.45   24.679 23.842 23.108 22.742 ~ 5 0
56 [DLT2009] 9 PaG 02 26 35.466 -04 32 17.73           ~ 1 0
57 VIDEO J022635.46-043218.02 GiP 02 26 35.466 -04 32 17.73   24.248 23.265 22.484 21.602 ~ 5 0
58 VIDEO J022635.71-042616.62 GiP 02 26 35.734 -04 26 16.38 24.352 24.362 24.067 23.852 23.353 ~ 6 0
59 VIDEO J022635.81-042618.44 GiP 02 26 35.835 -04 26 18.19 24.022 24.286 24.058 23.863 23.601 ~ 6 0
60 [DLT2009] 30 PaG 02 26 35.835 -04 26 18.19           ~ 1 0
61 VIDEO J022637.27-042540.79 GiP 02 26 37.290 -04 25 40.48 23.111 22.659 22.536 22.166 21.796 ~ 5 0
62 [DLT2009] 3 PaG 02 26 37.290 -04 25 40.48           ~ 1 0
63 VIDEO J022637.32-042544.05 GiP 02 26 37.346 -04 25 43.85 23.977 24.223 24.000 23.868 23.263 ~ 6 0
64 [DLT2009] p020469171 GiP 02 26 40.3 -04 15 39           ~ 1 0
65 [DLT2009] 36 PaG 02 26 40.356 -04 15 39.31           ~ 1 0
66 VIDEO J022640.37-041539.16 GiP 02 26 40.356 -04 15 39.31 24.407 24.345 24.124 23.872 23.271 ~ 6 0
67 [DLT2009] 11 PaG 02 26 44.422 -04 29 12.52           ~ 1 0
68 VIDEO J022644.42-042912.97 GiP 02 26 44.422 -04 29 12.52 24.754 24.688 24.340 23.773 22.995 ~ 6 0
69 VVDS J022644.63-042912.5 GiP 02 26 44.636 -04 29 12.55   25.310 25.093 24.331 23.938 ~ 5 0
70 VIDEO J022647.70-042403.00 GiP 02 26 47.707 -04 24 02.78 23.711 23.943 23.088 22.070 21.246 ~ 6 0
71 VIDEO J022647.78-042400.22 GiP 02 26 47.790 -04 23 59.86 24.347 24.961 23.481 22.388 21.430 ~ 7 0
72 [DLT2009] 6 PaG 02 26 47.790 -04 23 59.86           ~ 1 0
73 VIDEO J022651.35-043245.89 GiP 02 26 51.348 -04 32 45.66   24.783 23.058 22.024 21.001 ~ 7 0
74 [DLT2009] 8 PaG 02 26 51.526 -04 32 44.62           ~ 1 0
75 VIDEO J022651.53-043244.90 GiP 02 26 51.526 -04 32 44.62   23.788 22.730 21.752 20.966 ~ 6 0
76 [DLT2009] 2 PaG 02 26 53.012 -04 25 45.88           ~ 1 0
77 VIDEO J022653.02-042545.93 GiP 02 26 53.012 -04 25 45.88 23.811 22.644 21.169 20.596 20.001 ~ 5 0
78 VIDEO J022653.29-042544.21 GiP 02 26 53.289 -04 25 44.20 24.144 22.730 21.161 20.504 19.905 ~ 6 0
79 VIDEO J022655.35-042242.22 GiP 02 26 55.356 -04 22 42.09 23.578 23.731 23.648 23.560 23.374 ~ 5 0
80 [DLT2009] 25 PaG 02 26 55.356 -04 22 42.09           ~ 1 0
81 VIDEO J022655.46-042242.14 GiP 02 26 55.468 -04 22 42.01 24.492 24.426 24.153 23.951 23.320 ~ 5 0
82 VIDEO J022659.63-042346.76 GiP 02 26 59.64 -04 23 46.6   24.177 24.053 23.885 23.423 ~ 5 0
83 [DLT2009] 27 PaG 02 26 59.805 -04 23 47.10           ~ 1 0
84 VIDEO J022659.79-042347.28 GiP 02 26 59.81 -04 23 47.1   24.339 24.013 23.785 23.054 ~ 5 0
85 VIDEO J022700.90-040926.24 GiP 02 27 00.92 -04 09 26.0   23.317 22.846 22.283 21.955 ~ 5 0
86 [DLT2009] 20 PaG 02 27 00.922 -04 09 25.96           ~ 1 0
87 VIDEO J022701.12-040924.38 GiP 02 27 01.12 -04 09 24.4           ~ 2 0
88 VIDEO J022704.90-043009.34 GiP 02 27 04.912 -04 30 08.98 24.380 24.210 23.597 23.129 22.796 ~ 5 0
89 VIDEO J022705.08-043009.09 GiP 02 27 05.091 -04 30 08.71 23.995 23.658 23.190 22.786 22.331 ~ 6 0
90 [DLT2009] 23 PaG 02 27 05.091 -04 30 08.71           ~ 1 0
91 VIDEO J022715.65-043715.83 GiP 02 27 15.674 -04 37 15.37   24.502 24.005 23.343 22.969 ~ 6 0
92 [DLT2009] 32 PaG 02 27 15.674 -04 37 15.37           ~ 1 0
93 VIDEO J022715.74-043711.79 GiP 02 27 15.753 -04 37 11.48   24.732 24.312 23.762 23.314 ~ 6 0
94 VIDEO J022725.92-043345.05 GiP 02 27 25.94 -04 33 44.7   24.634 24.292 24.333 23.476 ~ 5 0
95 [DLT2009] 34 PaG 02 27 25.937 -04 33 44.70           ~ 1 0
96 VIDEO J022726.04-043345.49 GiP 02 27 26.05 -04 33 45.5           ~ 2 0
97 [DLT2009] p020336174 GiP 02 27 32.1 -04 15 34           ~ 1 0
98 VIDEO J022732.14-041534.36 GiP 02 27 32.16 -04 15 34.3   23.343 23.220 22.838 22.492 ~ 5 0
99 [DLT2009] 22 PaG 02 27 32.159 -04 15 34.26           ~ 1 0
100 VIDEO J022739.17-042100.19 GiP 02 27 39.177 -04 20 59.91 23.896 23.458 22.968 22.396 21.835 ~ 5 0
101 [DLT2009] 31 PaG 02 27 39.427 -04 20 59.78           ~ 1 0
102 VIDEO J022739.42-042100.08 GiP 02 27 39.427 -04 20 59.78 24.727 24.729 24.641 24.155 23.825 ~ 5 0
103 VIDEO J022743.30-042251.89 GiP 02 27 43.302 -04 22 51.34 23.275 23.252 22.831 22.504 21.966 ~ 5 0
104 [DLT2009] 19 PaG 02 27 43.442 -04 22 51.66           ~ 1 0
105 VIDEO J022743.44-042252.08 GiP 02 27 43.442 -04 22 51.66 24.296 24.233 23.987 24.011 23.458 ~ 6 0
106 VIDEO J022749.79-043332.48 GiP 02 27 49.798 -04 33 32.09   25.504 24.865 24.534 23.987 ~ 5 0
107 VIDEO J022749.93-043333.02 GiP 02 27 49.944 -04 33 32.64   24.604 23.909 23.249 22.796 ~ 5 0
108 [DLT2009] 18 PaG 02 27 49.944 -04 33 32.64           ~ 1 0

    Equat.    Gal    SGal    Ecl

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2021.03.08-13:13:30

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