2002ApJ...565..208P

Query : 2002ApJ...565..208P

2002ApJ...565..208P - Astrophys. J., 565, 208-222 (2002/January-3)

Dynamically close galaxy pairs and merger rate evolution in the CNOC2 redshift survey.

PATTON D.R., PRITCHET C.J., CARLBERG R.G., MARZKE R.O., YEE H.K.C., HALL P.B., LIN H., MORRIS S.L., SAWICKI M., SHEPHERD C.W. and WIRTH G.D.

Abstract (from CDS):

We investigate redshift evolution in the galaxy merger and accretion rates, using a well-defined sample of 4184 galaxies with 0.12≤z≤0.55 and RC≤21.5. We identify 88 galaxies in close (5≤rp≤20 h–1 kpc) dynamical (Δv≤500 km.s–1) pairs. These galaxies are used to compute global pair statistics, after accounting for selection effects resulting from the flux limit, k-corrections, luminosity evolution, and spectroscopic incompleteness. We find that the number of companions per galaxy (for -21≤Mk,eB≤-18) is Nc=0.0321±0.0077 at z=0.3. The luminosity in companions, per galaxy, is Lc=0.0294±0.0084x1010 h2 L☉. We assume that Nc is proportional to the galaxy merger rate, while Lc is directly related to the mass accretion rate. After increasing the maximum pair separation to 50 h–1 kpc and comparing with the low-redshift SSRS2 pair sample, we infer evolution in the galaxy merger and accretion rates of (1+z)2.3±0.7 and (1+z)2.3±0.9, respectively. These are the first such estimates to be made using only confirmed dynamical pairs. When combined with several additional assumptions, this implies that approximately 15% of present epoch galaxies with -21≤MB≤-18 have undergone a major merger since z=1.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Evolution - Galaxies: Interactions - Surveys

VizieR on-line data: <Available at CDS (J/ApJ/565/208): table1.dat>

Nomenclature: Table 1: [PPC2002] NN (Nos 1-44), [PPC2002] NNA> (Nos 1A-44A, 1B-44B).

Status at CDS : All or part of tables of objects will not be ingested in SIMBAD.

Simbad objects: 133

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Number of rows : 133
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 [PGS2005] GinP 7B GiP 02 23 28.29 -00 03 55.0       19.6   ~ 2 1
2 [PPC2002] 5 PaG 02 23 28.3 -00 03 52           ~ 1 0
3 [PGS2005] GinP 7A GiP 02 23 28.45 -00 03 55.1       19.2   ~ 2 1
4 [PGS2005] GinP 16A GiP 02 25 02.42 +00 01 13.1       20.0   ~ 2 1
5 [PPC2002] 14 PaG 02 25 02.5 +00 01 15           ~ 1 0
6 [PGS2005] GinP 16B GiP 02 25 02.84 +00 01 14.4       20.4   ~ 2 1
7 [PGS2005] GinP 6A GiP 02 25 09.06 +00 18 05.2       19.0   ~ 2 1
8 [PPC2002] 3 PaG 02 25 09.2 +00 18 05           ~ 1 0
9 [PGS2005] GinP 6B GiP 02 25 09.33 +00 18 04.8       20.1   ~ 2 1
10 [PGS2005] GinP 4A GiP 02 25 22.94 +00 07 12.4       18.8   ~ 2 1
11 [PPC2002] 2 PaG 02 25 23.0 +00 07 11           ~ 1 0
12 [PGS2005] GinP 4B GiP 02 25 23.20 +00 07 09.2       20.6   ~ 2 1
13 [PPC2002] 6 PaG 02 25 26.4 +00 21 44           ~ 1 0
14 CNOC2 0223 131533 GiP 02 25 26.4 +00 21 44           ~ 1 0
15 CNOC2 0223 131534 GiP 02 25 26.5 +00 21 44           ~ 1 0
16 CNOC2 0223 140109 GiP 02 25 35.3 +00 07 18           ~ 1 0
17 [PPC2002] 11 PaG 02 25 35.4 +00 07 19           ~ 1 0
18 CNOC2 0223 140119 GiP 02 25 35.6 +00 07 20           ~ 1 0
19 [PGS2005] GinP 14A GiP 02 25 48.86 +00 34 00.2       19.6   ~ 2 1
20 [PGS2005] GinP 14B GiP 02 25 48.90 +00 34 03.4       21.1   ~ 2 1
21 [PPC2002] 10 PaG 02 25 49.0 +00 33 57           ~ 1 0
22 [PGS2005] GinP 10B GiP 02 25 49.02 +00 30 33.7       20.4   ~ 2 1
23 SDSS J022549.16+003032.7 GiP 02 25 49.16564 +00 30 32.8795       19.1   ~ 3 1
24 [PPC2002] 4 PaG 02 25 49.2 +00 30 30           ~ 1 0
25 SDSS J022555.12+004718.3 GiP 02 25 55.12769 +00 47 18.2275       19.6   ~ 3 1
26 [PPC2002] 9 PaG 02 25 55.5 +00 47 14           ~ 1 0
27 SDSS J022555.58+004718.6 GiP 02 25 55.58998 +00 47 18.6230       20.5   ~ 3 1
28 CNOC2 0223 30555 GiP 02 25 58.7 +00 31 36           ~ 1 0
29 [PPC2002] 12 PaG 02 25 58.9 +00 31 37           ~ 1 0
30 CNOC2 0223 30571 GiP 02 25 59.1 +00 31 40           ~ 1 0
31 [PPC2002] 8 PaG 02 26 00.5 +00 41 12           ~ 1 0
32 CNOC2 0223 41009 GiP 02 26 00.5 +00 41 14           ~ 1 0
33 CNOC2 0223 41013 GiP 02 26 00.6 +00 41 15           ~ 1 0
34 [PPC2002] 15 PaG 02 26 03.6 +00 17 13           ~ 1 0
35 CNOC2 0223 10632 GiP 02 26 03.6 +00 17 16           ~ 1 0
36 CNOC2 0223 10594 GiP 02 26 03.7 +00 17 10           ~ 1 0
37 [PGS2005] GinP 20A GiP 02 26 13.19 +00 38 25.3       20.1   ~ 2 1
38 [PGS2005] GinP 20B GiP 02 26 13.24 +00 38 26.9       20.7   ~ 2 1
39 [PPC2002] 16 PaG 02 26 13.4 +00 38 22           ~ 1 0
40 [PGS2005] GinP 9B GiP 02 26 17.09 +00 12 47.3       20.6   ~ 2 1
41 [PPC2002] 7 PaG 02 26 17.1 +00 12 47           ~ 1 0
42 [PGS2005] GinP 9A GiP 02 26 17.22 +00 12 46.9       19.4   ~ 2 1
43 [VV2010c] J022617.3+004113 AGN 02 26 17.3 +00 41 13   22.56 21.37     ~ 4 0
44 [PPC2002] 13 PaG 02 26 17.4 +00 41 12           ~ 1 0
45 CNOC2 0223 40989 GiP 02 26 17.4 +00 41 12           ~ 2 1
46 [PGS2005] GinP 1B GiP 02 26 53.07 +00 02 38.6       19.2   ~ 2 1
47 [PPC2002] 1 PaG 02 26 53.2 +00 02 44           ~ 1 0
48 [PGS2005] GinP 1A GiP 02 26 53.50 +00 02 48.0       17.0   ~ 2 1
49 CNOC2 0920 191890 GiP 09 21 06.9 +36 41 14           ~ 1 0
50 CNOC2 0920 191850 GiP 09 21 06.9 +36 41 14           ~ 1 0
51 [PPC2002] 26 PaG 09 21 06.9 +36 41 14           ~ 1 0
52 SDSS J092226.77+364243.9 GiC 09 22 26.77735 +36 42 43.9494           ~ 3 0
53 FIRST J092227.0+364243 PaG 09 22 27.020 +36 42 43.37           ~ 1 0
54 SDSS J092227.22+364243.4 GiC 09 22 27.23349 +36 42 43.4417           ~ 3 0
55 [PGS2005] GinP 36B GiP 09 22 27.83 +36 46 54.2       20.0   ~ 2 1
56 [PGS2005] GinP 36A GiP 09 22 27.87 +36 46 51.9       19.9   ~ 2 1
57 [PPC2002] 25 PaG 09 22 27.9 +36 46 52           ~ 1 0
58 [PGS2005] GinP 31B GiP 09 23 12.50 +37 07 04.0       20.4   ~ 2 1
59 [PPC2002] 22 PaG 09 23 12.6 +37 07 05           ~ 1 0
60 [PGS2005] GinP 31A GiP 09 23 12.63 +37 07 04.7       18.9   ~ 2 1
61 [PPC2002] 24 PaG 09 23 30.7 +37 11 19           ~ 1 0
62 [PGS2005] GinP 34A GiP 09 23 30.71 +37 11 19.6       19.6   ~ 2 1
63 [PGS2005] GinP 34B GiP 09 23 30.87 +37 11 21.0       20.1   ~ 2 1
64 [PGS2005] GinP 29B GiP 09 23 42.49 +37 31 40.2       19.0   ~ 2 1
65 [PPC2002] 20 PaG 09 23 42.8 +37 31 42           ~ 1 0
66 [PGS2005] GinP 29A GiP 09 23 43.09 +37 31 42.9       18.6   ~ 2 1
67 [PPC2002] 18 PaG 09 24 01.2 +37 44 18           ~ 1 0
68 CNOC2 0920 61308 GiP 09 24 01.2 +37 44 18           ~ 1 0
69 CNOC2 0920 61331 GiP 09 24 01.2 +37 44 18           ~ 1 0
70 [PPC2002] 17 PaG 09 24 03.2 +37 04 47           ~ 1 0
71 [PGS2005] GinP 25A BiC 09 24 03.2167253640 +37 04 52.089678156       17.1   ~ 3 1
72 [PGS2005] GinP 25B GiP 09 24 03.32 +37 04 43.9       19.5   ~ 2 1
73 [PGS2005] GinP 30B GiP 09 24 07.95 +37 05 36.8       19.2   ~ 2 1
74 [PPC2002] 21 PaG 09 24 08.0 +37 05 39           ~ 1 0
75 [PGS2005] GinP 30A GiP 09 24 08.24 +37 05 42.5       18.8   ~ 2 1
76 [PGS2005] GinP 28A GiP 09 24 39.40 +37 08 15.3       18.2   ~ 2 1
77 [PGS2005] GinP 28B GiP 09 24 39.46 +37 08 13.4       20.4   ~ 2 1
78 [PPC2002] 19 PaG 09 24 39.6 +37 08 16           ~ 1 0
79 CNOC2 1447 161997 GiP 14 48 12.858 +08 55 54.58           ~ 2 0
80 [PPC2002] 34 PaG 14 48 12.9 +08 55 53           ~ 1 0
81 CNOC2 1447 161985 GiP 14 48 12.990 +08 55 51.19           ~ 2 0
82 CNOC2 1447 162141 GiP 14 48 22.0 +08 56 32           ~ 1 0
83 [PPC2002] 29 PaG 14 48 22.0 +08 56 32           ~ 1 0
84 CNOC2 1447 162151 GiP 14 48 22.0 +08 56 32           ~ 1 0
85 [PGS2005] GinP 46A GiP 14 48 55.811 +08 56 44.25       18.2   ~ 3 1
86 [PPC2002] 28 PaG 14 48 56.1 +08 56 44           ~ 1 0
87 [PGS2005] GinP 46B GiP 14 48 56.261 +08 56 45.56       20.3   ~ 3 1
88 [PGS2005] GinP 49A GiP 14 49 26.909 +08 52 10.63       19.1   ~ 3 1
89 [PPC2002] 31 PaG 14 49 27.0 +08 52 10           ~ 1 0
90 [PGS2005] GinP 49B GiP 14 49 27.092 +08 52 09.90       20.8   ~ 3 1
91 CNOC2 1447 11270 GiP 14 49 33.1 +09 10 53           ~ 1 0
92 CNOC2 1447 11283 GiP 14 49 33.1 +09 10 53           ~ 1 0
93 [PPC2002] 32 PaG 14 49 33.1 +09 10 53           ~ 1 0
94 [PGS2005] GinP 60B GiP 14 49 38.716 +09 29 30.94       21.3   ~ 3 1
95 [PPC2002] 37 PaG 14 49 38.9 +09 29 30           ~ 1 0
96 [PGS2005] GinP 60A GiP 14 49 38.950 +09 29 30.68       20.9   ~ 3 1
97 CNOC2 1447 120356 GiP 14 49 45.707 +08 57 28.85           ~ 2 0
98 [PPC2002] 30 PaG 14 49 45.8 +08 57 30           ~ 1 0
99 CNOC2 1447 120368 GiP 14 49 45.956 +08 57 31.20           ~ 2 0
100 [PGS2005] GinP 51B GiP 14 49 54.954 +09 38 43.70       20.0   ~ 3 1
101 [PGS2005] GinP 51A GiP 14 49 55.049 +09 38 44.85       19.2   ~ 3 1
102 [PPC2002] 33 PaG 14 49 55.1 +09 38 43           ~ 1 0
103 [PGS2005] GinP 52A GiP 14 50 05.643 +09 11 52.42       19.3   ~ 3 1
104 [PGS2005] GinP 52B GiP 14 50 05.867 +09 11 56.25       20.1   ~ 3 1
105 [PPC2002] 35 PaG 14 50 05.9 +09 11 54           ~ 1 0
106 CNOC2 1447 91998 GiP 14 50 09.9 +09 04 35           ~ 1 0
107 CNOC2 1447 91999 GiP 14 50 09.9 +09 04 35           ~ 1 0
108 [PPC2002] 36 PaG 14 50 09.9 +09 04 35           ~ 1 0
109 [PGS2005] GinP 45A GiP 14 50 25.206 +08 56 26.22       18.1   ~ 3 1
110 [PPC2002] 27 PaG 14 50 25.4 +08 56 25           ~ 1 0
111 [PGS2005] GinP 45B GiP 14 50 25.551 +08 56 24.14       20.4   ~ 3 1
112 IC 1127 SyG 15 34 57.22396 +23 30 11.6084   14.76 13.88     ~ 3090 4
113 CNOC2 2148 180907 GiP 21 49 18.5 -05 58 46           ~ 1 0
114 CNOC2 2148 180896 GiP 21 49 18.5 -05 58 46           ~ 1 0
115 [PPC2002] 39 PaG 21 49 18.5 -05 58 46           ~ 1 0
116 [PGS2005] GinP 72A GiP 21 50 16.487 -05 45 44.37       20.8   ~ 3 1
117 [PPC2002] 44 PaG 21 50 16.5 -05 45 46           ~ 1 0
118 [PGS2005] GinP 72B GiP 21 50 16.589 -05 45 45.58       21.2   ~ 3 1
119 [PPC2002] 43 PaG 21 50 36.8 -05 29 30           ~ 1 0
120 CNOC2 2148 131825 GiP 21 50 36.804 -05 29 30.19           ~ 2 0
121 CNOC2 2148 131817 GiP 21 50 36.804 -05 29 28.22           ~ 2 0
122 CNOC2 2148 141692 GiP 21 50 56.9 -05 38 54           ~ 1 0
123 [PPC2002] 40 PaG 21 50 56.9 -05 38 54           ~ 1 0
124 CNOC2 2148 141675 GiP 21 50 56.9 -05 38 54           ~ 1 0
125 CNOC2 2148 70479 GiP 21 51 11.5 -04 47 59           ~ 1 0
126 CNOC2 2148 70450 GiP 21 51 11.5 -04 47 59           ~ 1 0
127 [PPC2002] 38 PaG 21 51 11.5 -04 47 59           ~ 1 0
128 [PGS2005] GinP 67A GiP 21 51 12.48 -05 17 42.8       19.1   ~ 2 1
129 [PPC2002] 41 PaG 21 51 12.7 -05 17 46           ~ 1 0
130 [PGS2005] GinP 67B GiP 21 51 12.88 -05 17 48.6       20.2   ~ 2 1
131 [PPC2002] 42 PaG 21 51 22.0 -04 45 16           ~ 1 0
132 [PGS2005] GinP 68B GiP 21 51 22.09 -04 45 18.9       21.1   ~ 2 1
133 [PGS2005] GinP 68A GiP 21 51 22.15 -04 45 14.3       19.5   ~ 2 1

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