2018MNRAS.477.5150Q

Query : 2018MNRAS.477.5150Q

2018MNRAS.477.5150Q - Mon. Not. R. Astron. Soc., 477, 5150-5166 (2018/July-2)

Bulk flow in the combined 2MTF and 6dFGSv surveys.

QIN F., HOWLETT C., STAVELEY-SMITH L. and HONG T.

Abstract (from CDS):

We create a combined sample of 10 904 late- and early-type galaxies from the 2MTF and 6dFGSv surveys in order to accurately measure bulk flow in the local Universe. Galaxies and groups of galaxies common between the two surveys are used to verify that the difference in zero-points is <0.02 dex. We introduce a maximum likelihood estimator (ηMLE) for bulk flow measurements that allows for more accurate measurement in the presence of non-Gaussian measurement errors. To calibrate out residual biases due to the subtle interaction of selection effects, Malmquist bias and anisotropic sky distribution, the estimator is tested on mock catalogues generated from 16 independent large-scale GiggleZ and SURFS simulations. The bulk flow of the local Universe using the combined data set, corresponding to a scale size of 40 h–1 Mpc, is 288 ± 24 km s–1 in the direction (l, b) = (296 ± 6°, 21 ± 5°). This is the most accurate bulk flow measurement to date, and the amplitude of the flow is consistent with the Λ cold dark matter expectation for similar size scales.

Abstract Copyright: © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): surveys - galaxies: kinematics and dynamics - galaxies: statistics - large-scale structure of Universe

Simbad objects: 44

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Number of rows : 44
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 MCG-06-01-034 EmG 00 11 12.5973416328 -33 34 42.805179948   13.98   12.77   ~ 35 0
2 MCG-02-02-007 Sy2 00 22 33.8847513696 -08 29 10.889053728   15   14.13   ~ 26 0
3 MCG-02-03-015 Sy1 00 47 46.419 -09 50 06.31   13   13.53   ~ 61 0
4 MCG-04-04-006 Sy2 01 21 17.7711921360 -22 48 02.307683772   13.96   12.59   ~ 54 0
5 NGC 497 LIN 01 22 23.7769339824 -00 52 30.765601740   14.1       ~ 89 0
6 MCG-05-07-001 Sy2 02 28 20.1024142368 -31 52 51.628774224   14.6   13.14   ~ 82 0
7 NGC 958 Sy2 02 30 42.8187658032 -02 56 20.526742608   13.0   11.81 12.4 ~ 164 0
8 NGC 1037 Sy2 02 37 58.7186025720 -01 50 38.746943628   14.5       ~ 43 0
9 MCG-01-08-008 Sy2 02 47 06.7752901944 -02 58 21.106085844   15.5       ~ 35 0
10 NGC 1324 SyG 03 25 01.6816298256 -05 44 44.975701104   14   12.31   ~ 78 0
11 IC 1928 EmG 03 27 29.1790969680 -21 33 36.322800588   14.09   12.75   ~ 33 0
12 MCG-03-10-048 EmG 03 48 28.4700029208 -18 45 08.480683512   15.37   13.69   ~ 29 0
13 NGC 1628 EmG 04 37 36.2917882800 -04 42 53.745133392   14   12.82   ~ 40 0
14 NGC 1686 Sy2 04 52 54.6489723384 -15 20 47.282525484   14   13.60   ~ 37 0
15 MCG-03-15-027 Sy2 05 54 45.1688221704 -15 08 03.253122276   15   13.97   ~ 19 0
16 NGC 2124 GiG 05 57 52.2483693360 -20 05 04.405401780   13.44   11.63 12.5 ~ 52 0
17 ESO 59-16 G 07 42 54.7945503936 -71 13 09.796466964   15.09   13.67   ~ 18 0
18 ESO 18-13 GiG 08 43 48.6607899720 -78 56 57.750736128   14.10   12.94 13.4 ~ 42 1
19 MCG-02-26-002 GiG 09 55 56.6687975808 -13 45 14.627055852   15   13.97   ~ 24 0
20 NGC 3200 AG? 10 18 36.5393422320 -17 58 57.031507560   12.92   11.78 12.1 ~ 127 0
21 ESO 215-27 GiG 11 08 22.1821303584 -47 55 51.806225136   15.09   13.92   ~ 27 0
22 NGC 3544 Sy2 11 11 30.4874539128 -18 17 22.349092452   12.81       ~ 50 0
23 MCG-03-32-005 Sy2 12 20 37.2707429232 -18 40 01.357617576   14.02       ~ 34 0
24 MCG-02-33-068 GiG 12 57 05.9094261096 -12 16 19.961445864   14   13.27   ~ 30 0
25 6dFGS gJ125722.9-153855 GiG 12 57 22.914 -15 38 55.18   15.70   14.41   ~ 24 0
26 NGC 4843 Sy2 12 58 00.8324332176 -03 37 15.941574588   14.1       ~ 40 0
27 MCG-03-33-025 Sy2 12 59 34.1375476464 -21 05 48.021481788   14.75   13.41   ~ 31 0
28 NAME Shapley Supercluster SCG 13 06.0 -33 04           ~ 677 0
29 MCG-03-35-020 EmG 13 53 08.2184861136 -16 57 37.362673620   15   16.71   ~ 22 0
30 ESO 445-69 EmG 13 53 09.6836158368 -30 42 45.849504600   14.95   13.68 13.69 ~ 29 0
31 MCG-04-33-007 GiG 13 53 58.4776928064 -27 37 23.559003084   14.26   12.81 13.01 ~ 34 0
32 MCG-06-32-002 Sy2 14 22 25.3872788496 -34 21 55.136691828   13.87   12.35   ~ 34 0
33 MCG-02-38-034 Sy2 15 06 24.6323535024 -09 54 26.003952468   15   13.49   ~ 25 0
34 NGC 5878 EmG 15 13 45.7287265656 -14 16 11.524994832   12.1   11.26 11.7 ~ 93 0
35 LEDA 1046159 Sy2 15 37 12.6982760448 -05 19 57.261565776   16.96   16.37   ~ 18 0
36 IC 4596 EmG 16 16 03.5951842512 -22 37 31.181216952   14.96   13.50   ~ 30 0
37 IC 4785 Sy2 18 52 55.2308450016 -59 15 19.394954712   13.10   11.53 12.0 ~ 45 0
38 MCG-05-47-018b Sy2 20 00 03.5336866800 -32 05 05.322418476   15.12   13.42   ~ 26 0
39 MCG-03-51-001 GiG 20 01 02.7029732112 -17 03 08.804280960   15   13.75   ~ 20 0
40 LEDA 3920915 EmG 20 17 22.1693758080 -53 17 10.252578948   15.67   14.38   ~ 17 0
41 LEDA 885891 EmG 21 02 42.0681488520 -17 16 32.876389668   15.56   14.33   ~ 19 0
42 MCG-01-54-019 G 21 30 14.2297408632 -08 04 01.098085620   15.5       ~ 24 0
43 MCG-04-51-001 Sy2 21 36 48.7082594880 -22 48 19.353705840   14.77       ~ 22 0
44 LEDA 191337 LIN 22 05 27.0080077560 -00 32 00.400911612   16.21   14.66   ~ 34 0

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