2012A&A...540A.105A


C.D.S. - SIMBAD4 rel 1.7 - 2019.11.14CET19:05:19

2012A&A...540A.105A - Astronomy and Astrophysics, volume 540A, 105-105 (2012/4-1)

Comparison of the properties of two fossil groups of galaxies with the normal group NGC 6034 based on multiband imaging and optical spectroscopy.

ADAMI C., JOUVEL S., GUENNOU L., LE BRUN V., DURRET F., CLEMENT B., CLERC N., COMERON S., ILBERT O., LIN Y., RUSSEIL D. and SEEMANN U.

Abstract (from CDS):

Fossil groups are dominated by a bright galaxy, and their luminosity functions show an absence within half the virial radius of galaxies brighter than the central galaxy magnitude +2. They are nevertheless massive with an extended X-ray halo. The formation and evolution of these structures is still widely debated. To better understand the origin of these structures, it is crucial to study their faint galaxy population, as well as their large-scale environment, to determine in particular whether they are isolated or not. We collected multiband imaging and spectroscopy for two fossil groups (RX J1119.7+2126 and 1RXS J235814.4+150524) and one normal group (associated with NGC 6034). We computed photometric redshifts in the central zones of each group, combining previous data with the SDSS five-band data. For each group we investigated the red sequence (RS) of the color-magnitude relation and computed the luminosity functions, stellar population ages and distributions of the group members. Spectroscopy allowed us to investigate the large-scale surroundings of these groups and the substructure levels in 1RXS J235814.4+150524 and NGC 6034. The large-scale environment of 1RXS J235814.4+150524 is poor, though its galaxy density map shows a clear signature of the surrounding cosmic web. RX J1119.7+2126 appears to be very isolated, while the cosmic environment of NGC 6034 is very rich. At the group scale, 1RXS J235814.4+150524 shows no substructure. Galaxies with recent stellar populations seem preferentially located in the group outskirts. A red sequence is discernable for all three groups in a color-magnitude diagram. The luminosity functions based on photometric redshift selection and on statistical background subtraction have comparable shapes, and agree with the few points obtained from spectroscopic redshifts. These luminosity functions show the expected dip between first and second brightest galaxies for the fossil groups only. Their shape is also regular and relatively flat at faint magnitudes down to the completeness level for RX J1119.7+2126 and NGC 6034, while there is a clear lack of faint galaxies for 1RXS J235814.4+150524. The faint parts of the luminosity functions appear dominantly populated by late-type galaxies. RX J1119.7+2126 is definitely classified as a fossil group; 1RXS J235814.4+150524 also has properties very close to those of a fossil group, while we confirm that NGC 6034 is a normal group.

Abstract Copyright:

Journal keyword(s): galaxies: groups: individual: NGC 6034

Nomenclature: Table A.1: [AJG2012] DDD.ddddd+DD.ddddd N=32, Table A.3: [AJG2012] DDD.ddddd+DD.ddddd N=43, Table A.4: [AJG2012] DDD.ddddd+DD.ddddd N=38.

Status in Simbad:  being processed

Simbad objects: 134

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Number of rows : 134

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 2MASX J00001187+1405240 G 00 00 11.9197269342 +14 05 24.107120816           ~ 2 0
2 KUG 2358+159 G 00 01 14.453 +16 10 42.65   16.5       ~ 3 0
3 2MASX J00040323+1420083 G 00 04 03.4 +14 20 06           ~ 2 0
4 LEDA 1501786 G 00 05 47.131 +16 08 38.17           ~ 2 0
5 2MASX J00061715+1354269 G 00 06 17.1190342555 +13 54 26.886709461           ~ 2 0
6 2MASX J00075853+1510533 G 00 07 58.5 +15 10 53           ~ 1 0
7 [AJG2012] 169.86131+21.43701 G 11 19 26.71 +21 26 13.2           ~ 1 0
8 [AJG2012] 169.87387+21.44891 G 11 19 29.73 +21 26 56.1           ~ 1 0
9 [AJG2012] 169.88421+21.46373 G 11 19 32.21 +21 27 49.4           ~ 1 0
10 [AJG2012] 169.88604+21.38743 G 11 19 32.65 +21 23 14.7           ~ 1 0
11 2XMM J111933.1+212757 AGN 11 19 33.1961093729 +21 27 57.849045501     18.8     ~ 14 0
12 [AJG2012] 169.89172+21.40683 G 11 19 34.01 +21 24 24.6           ~ 1 0
13 [AJG2012] 169.90656+21.43067 * 11 19 37.57 +21 25 50.4           ~ 1 0
14 3XMM J111938.0+212627 QSO 11 19 38.0519542285 +21 26 27.459340135           ~ 5 0
15 [AJG2012] 169.90989+21.39666 G 11 19 38.37 +21 23 48.0           ~ 1 0
16 [AJG2012] 169.91870+21.43216 G 11 19 40.49 +21 25 55.8           ~ 1 0
17 [AJG2012] 169.92206+21.45909 G 11 19 41.29 +21 27 32.7           ~ 1 0
18 [AJG2012] 169.92260+21.46334 * 11 19 41.42 +21 27 48.0           ~ 1 0
19 [AJG2012] 169.92296+21.42640 G 11 19 41.51 +21 25 35.0           ~ 1 0
20 CAIRNS J111942.06+212610.7 GiC 11 19 42.00 +21 26 10.0   19.2       ~ 5 0
21 [AJG2012] 169.92680+21.45457 G 11 19 42.40 +21 27 16.4           ~ 2 0
22 LEDA 1650207 GiC 11 19 43.5698373666 +21 26 51.247823370   16.6       ~ 6 0
23 BAX 169.9321+21.4453 ClG 11 19 43.70 +21 26 43.0           ~ 21 0
24 [AJG2012] 169.93549+21.46902 G 11 19 44.52 +21 28 08.5           ~ 1 0
25 [AJG2012] 169.93633+21.51504 G 11 19 44.72 +21 30 54.1           ~ 1 0
26 CAIRNS J111944.75+213211.3 GiC 11 19 44.75 +21 32 11.3           ~ 3 0
27 CAIRNS J111945.21+213109.9 GiC 11 19 45.21 +21 31 09.9   18.9       ~ 3 0
28 [AJG2012] 169.94032+21.50432 G 11 19 45.68 +21 30 15.6           ~ 1 0
29 [AJG2012] 169.94221+21.42251 G 11 19 46.13 +21 25 21.0           ~ 1 0
30 CAIRNS J111947.13+212856.1 GiC 11 19 47.13 +21 28 56.1   19.2       ~ 3 0
31 [AJG2012] 169.96226+21.51082 G 11 19 50.94 +21 30 39.0           ~ 1 0
32 [AJG2012] 169.96593+21.51904 G 11 19 51.82 +21 31 08.5           ~ 1 0
33 LEDA 1651288 GiC 11 19 52.0 +21 30 02   17.4       ~ 4 0
34 [PWC2011] J111952.4+212505 G 11 19 52.4 +21 25 05           ~ 2 0
35 [AJG2012] 169.98881+21.44085 G 11 19 57.31 +21 26 27.1           ~ 1 0
36 CAIRNS J111959.04+213153.8 GiC 11 19 59.00 +21 31 53.0   18.1       ~ 4 0
37 [AJG2012] 169.99891+21.45859 G 11 19 59.74 +21 27 30.9           ~ 1 0
38 [AJG2012] 170.00296+21.44578 G 11 20 00.71 +21 26 44.8           ~ 1 0
39 [AJG2012] 170.00600+21.43058 G 11 20 01.44 +21 25 50.1           ~ 1 0
40 ACO 1656 ClG 12 59 48.7 +27 58 50           ~ 4106 2
41 LEDA 1528716 G 16 03 01.300 +17 16 09.52           ~ 4 0
42 SDSS J160303.39+171429.1 G 16 03 03.390 +17 14 29.12           ~ 2 0
43 SDSS J160304.42+171127.6 G 16 03 04.217 +17 11 26.79           ~ 6 0
44 SDSS J160304.30+171455.3 G 16 03 04.303 +17 14 55.29           ~ 2 0
45 LEDA 1526857 G 16 03 05.2409291368 +17 11 36.129431219           ~ 5 0
46 LEDA 84703 GiC 16 03 05.726 +17 10 20.37   16       ~ 16 0
47 LEDA 1528002 G 16 03 14.950 +17 14 21.29           ~ 3 0
48 SDSS J160317.65+171101.7 G 16 03 17.648 +17 11 01.70           ~ 2 0
49 2MASX J16032265+1703256 GiC 16 03 22.650 +17 03 26.06   16       ~ 9 0
50 LEDA 1528998 G 16 03 24.618 +17 16 48.87           ~ 3 0
51 SDSS J160327.88+171628.7 G 16 03 27.882 +17 16 28.73           ~ 2 0
52 [AJG2012] 240.86700+17.19620 G 16 03 27.9969424304 +17 11 46.216291218           ~ 2 0
53 LEDA 1528801 G 16 03 28.000 +17 16 19.82           ~ 3 0
54 SDSS J160328.93+170930.2 G 16 03 28.931 +17 09 30.24           ~ 2 0
55 SDSS J160330.86+171056.4 G 16 03 30.864 +17 10 56.52           ~ 2 0
56 NGC 6034 rG 16 03 32.08334 +17 11 55.3111   15.2       ~ 82 1
57 [AJG2012] 240.88400+17.19840 G 16 03 32.16 +17 11 54.2           ~ 1 0
58 LEDA 1526128 G 16 03 33.1817453396 +17 09 47.153280409           ~ 3 0
59 [AJG2012] 240.89600+17.25580 G 16 03 35.04 +17 15 20.9           ~ 1 0
60 2MASX J16033924+1711057 GiC 16 03 39.247 +17 11 05.72   16       ~ 10 0
61 LEDA 56885 GiC 16 03 40.504 +17 20 16.64   15       ~ 13 0
62 LEDA 1523878 G 16 03 40.812 +17 04 09.86           ~ 3 0
63 2MASX J16034286+1718127 GiC 16 03 42.869 +17 18 12.73           ~ 3 0
64 SDSS J160344.27+171750.8 G 16 03 44.271 +17 17 50.87           ~ 2 0
65 LEDA 1529220 G 16 03 44.588 +17 17 19.55           ~ 4 0
66 SDSS J160344.88+170808.1 G 16 03 44.875 +17 08 08.14           ~ 3 0
67 SDSS J160345.04+171347.0 G 16 03 45.048 +17 13 46.97           ~ 2 0
68 MCG+03-41-063 LIN 16 03 48.2424047778 +17 14 26.222268374   15.4       ~ 24 0
69 [AJG2012] 240.96100+17.23950 G 16 03 50.7088600758 +17 14 21.782347417           ~ 2 0
70 SDSS J160354.55+170435.2 G 16 03 54.557 +17 04 35.24           ~ 2 0
71 SDSS J160356.30+170639.3 G 16 03 56.302 +17 06 39.42           ~ 2 0
72 2MASX J16035667+1718182 GiC 16 03 56.6507274613 +17 18 18.395736476   16       ~ 12 0
73 LEDA 1528012 G 16 03 57.5145046743 +17 14 19.582949680           ~ 3 0
74 LEDA 1525562 G 16 04 01.430 +17 08 20.40           ~ 3 0
75 MCG+03-41-067 GiC 16 04 02.7529919373 +17 16 56.577266240   15.7       ~ 20 0
76 SDSS J160405.47+171314.7 G 16 04 05.472 +17 13 14.76           ~ 2 0
77 SDSS J160407.17+171410.6 G 16 04 07.176 +17 14 10.64           ~ 2 0
78 SDSS J160407.55+171224.8 G 16 04 07.557 +17 12 24.84           ~ 3 0
79 2MASX J16041030+1712183 GiC 16 04 10.302 +17 12 18.31   16       ~ 8 0
80 ACO 2151 ClG 16 05 15.0 +17 44 55           ~ 547 3
81 2MASX J23475868+1410367 G 23 47 58.6612488124 +14 10 36.667492386           ~ 2 0
82 2MASX J23480439+1442557 G 23 48 04.3829815771 +14 42 56.160377162           ~ 4 0
83 SDSS J234826.30+160113.7 G 23 48 26.306 +16 01 13.79           ~ 1 0
84 2MASX J23510162+1527106 G 23 51 01.6369590151 +15 27 11.164487453           ~ 2 0
85 2MASX J23530977+1503278 G 23 53 09.7541510339 +15 03 27.894647583           ~ 2 0
86 2MASX J23543897+1604501 G 23 54 38.9387931848 +16 04 50.681191188           ~ 3 0
87 2MASX J23543994+1604561 G 23 54 39.951 +16 04 56.22           ~ 3 0
88 2MASX J23551805+1531545 G 23 55 18.0355419769 +15 31 54.737630084           ~ 1 0
89 [AJG2012] 359.49886+15.10602 G 23 57 59.73 +15 06 21.7           ~ 1 0
90 [AJG2012] 359.50628+15.11972 G 23 58 01.51 +15 07 11.0           ~ 1 0
91 [AJG2012] 359.51304+15.11320 G 23 58 03.13 +15 06 47.5           ~ 1 0
92 [AJG2012] 359.51911+15.14732 G 23 58 04.59 +15 08 50.4           ~ 1 0
93 [AJG2012] 359.52384+15.14407 G 23 58 05.72 +15 08 38.7           ~ 1 0
94 [AJG2012] 359.53523+15.12241 G 23 58 08.46 +15 07 20.7           ~ 1 0
95 [AJG2012] 359.54073+15.11647 G 23 58 09.78 +15 06 59.3           ~ 1 0
96 [AJG2012] 359.54074+15.09299 G 23 58 09.78 +15 05 34.8           ~ 1 0
97 [AJG2012] 359.54119+15.05579 G 23 58 09.89 +15 03 20.8           ~ 1 0
98 [AJG2012] 359.54428+15.07865 G 23 58 10.63 +15 04 43.1           ~ 1 0
99 [AJG2012] 359.54479+15.10169 G 23 58 10.75 +15 06 06.1           ~ 1 0
100 [AJG2012] 359.55371+15.06013 G 23 58 12.89 +15 03 36.5           ~ 1 0
101 [AJG2012] 359.55694+15.09995 G 23 58 13.67 +15 05 59.8           ~ 1 0
102 [AJG2012] 359.55717+15.10495 G 23 58 13.72 +15 06 17.8           ~ 1 0
103 [AJG2012] 359.55917+15.11952 G 23 58 14.20 +15 07 10.3           ~ 1 0
104 [AJG2012] 359.55965+15.14777 G 23 58 14.32 +15 08 52.0           ~ 1 0
105 1RXS J235814.4+150524 GrG 23 58 14.400 +15 05 24.00           ~ 7 0
106 [AJG2012] 359.56001+15.09075 G 23 58 14.40 +15 05 26.7           ~ 1 0
107 [AJG2012] 359.56027+15.15464 G 23 58 14.46 +15 09 16.7           ~ 1 0
108 [AJG2012] 359.56263+15.04156 G 23 58 15.03 +15 02 29.6           ~ 1 0
109 [AJG2012] 359.56280+15.09560 G 23 58 15.07 +15 05 44.2           ~ 1 0
110 [AJG2012] 359.56370+15.04343 G 23 58 15.29 +15 02 36.3           ~ 1 0
111 LEDA 1475080 G 23 58 15.4 +15 05 41           ~ 2 0
112 [AJG2012] 359.56425+15.06989 G 23 58 15.42 +15 04 11.6           ~ 1 0
113 [AJG2012] 359.56460+15.06430 G 23 58 15.50 +15 03 51.5           ~ 1 0
114 [AJG2012] 359.56483+15.06406 G 23 58 15.56 +15 03 50.6           ~ 1 0
115 [AJG2012] 359.56519+15.08331 G 23 58 15.65 +15 04 59.9           ~ 1 0
116 [AJG2012] 359.56843+15.13146 G 23 58 16.42 +15 07 53.3           ~ 1 0
117 [AJG2012] 359.56862+15.13926 G 23 58 16.47 +15 08 21.3           ~ 1 0
118 [AJG2012] 359.56865+15.13907 G 23 58 16.48 +15 08 20.7           ~ 1 0
119 [AJG2012] 359.56870+15.13147 G 23 58 16.49 +15 07 53.3           ~ 1 0
120 [AJG2012] 359.56910+15.09212 G 23 58 16.58 +15 05 31.6           ~ 1 0
121 [AJG2012] 359.56978+15.05974 G 23 58 16.75 +15 03 35.1           ~ 1 0
122 [AJG2012] 359.57040+15.10639 G 23 58 16.90 +15 06 23.0           ~ 1 0
123 [AJG2012] 359.57131+15.09885 G 23 58 17.11 +15 05 55.9           ~ 1 0
124 [AJG2012] 359.57407+15.15178 G 23 58 17.78 +15 09 06.4           ~ 1 0
125 [AJG2012] 359.57923+15.08278 G 23 58 19.02 +15 04 58.0           ~ 1 0
126 [AJG2012] 359.58374+15.10016 G 23 58 20.10 +15 06 00.6           ~ 1 0
127 [AJG2012] 359.58437+15.13468 G 23 58 20.25 +15 08 04.8           ~ 1 0
128 [AJG2012] 359.59139+15.10234 G 23 58 21.93 +15 06 08.4           ~ 1 0
129 [AJG2012] 359.59736+15.11437 G 23 58 23.37 +15 06 51.7           ~ 1 0
130 [AJG2012] 359.60624+15.06930 G 23 58 25.50 +15 04 09.5           ~ 1 0
131 [AJG2012] 359.61164+15.06756 G 23 58 26.79 +15 04 03.2           ~ 1 0
132 87GB 235552.8+145656 BiC 23 58 26.955 +15 13 58.58           ~ 6 1
133 [AJG2012] 359.62673+15.07429 G 23 58 30.42 +15 04 27.4           ~ 1 0
134 2MASX J23592068+1440129 BiC 23 59 20.681 +14 40 12.75           ~ 2 0

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2019.11.14-19:05:19

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