2014MNRAS.445.3823R

Query : 2014MNRAS.445.3823R

2014MNRAS.445.3823R - Mon. Not. R. Astron. Soc., 445, 3823-3838 (2014/December-3)

Modified gravity models and the central cusp of dark matter haloes in galaxies.

RODRIGUES D.C., DE OLIVEIRA P.L., FABRIS J.C. and GENTILE G.

Abstract (from CDS):

The N-body dark matter (DM) simulations point that DM density profiles, e.g. the Navarro-Frenk-White (NFW) halo, should be cuspy in its centre, but observations disfavour this kind of DM profile. Here we consider whether the observed rotation curves close to the galactic centre can favour modified gravity models in comparison to the NFW halo, and how to quantify such difference. Two explicit modified gravity models are considered, Modified Newtonian Dynamics (MOND) and a more recent approach renormalization group effects in general relativity (RGGR). It is also the purpose of this work to significantly extend the sample on which RGGR has been tested in comparison to other approaches. By analysing 62 galaxies from five samples, we find that (i) there is a radius, given by half the disc scale length, below which RGGR and MOND can match the data about as well or better than NFW, albeit the formers have fewer free parameters; (ii) considering the complete rotation curve data, RGGR could achieve fits with better agreement than MOND, and almost as good as a NFW halo with two free parameters (NFW and RGGR have, respectively, two and one more free parameters than MOND).

Abstract Copyright: © 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2014)

Journal keyword(s): gravitation - galaxies: kinematics and dynamics - galaxies: spiral - dark matter

Simbad objects: 53

goto Full paper

goto View the references in ADS

Number of rows : 53
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 NGC 360 Sy2 01 02 51.4684833528 -65 36 35.652293964   13.42   11.99 12.5 ~ 103 0
2 UGC 731 AG? 01 10 43.98 +49 36 07.9   17       ~ 103 0
3 MCG+04-05-005 LSB 01 45 32.251 +25 31 17.28   17       ~ 92 0
4 NGC 925 H2G 02 27 16.913 +33 34 43.97   10.69 10.12 9.55   ~ 818 1
5 NGC 1090 AG? 02 46 33.9359016984 -00 14 49.627749660   12.3   12.1 12.4 ~ 178 0
6 ESO 116-12 EmG 03 13 04.746 -57 21 26.09   12.96   12.07 12.2 ~ 103 0
7 NGC 1560 GiG 04 32 49.087 +71 52 59.20   12.1       ~ 264 0
8 MCG+13-05-007a AG? 05 56 35.98 +75 19 01.9   17       ~ 89 0
9 NGC 2366 H2G 07 28 52.4529 +69 12 38.859 12.25 11.86 11.39 11.33   ~ 801 0
10 NGC 2403 AGN 07 36 51.3381434280 +65 36 09.650825640 9.31 8.84 8.38 8.19   ~ 1887 1
11 Z 349-16 AG? 08 07 10.05 +80 07 36.5   15.7       ~ 53 0
12 NGC 2552 EmG 08 19 20.5355420472 +50 00 34.590204468 13.44 13.00 12.56     ~ 284 1
13 Z 263-63 GiP 08 37 41.489 +51 39 08.58   13.50       ~ 149 1
14 LSB F563-1 LSB 08 55 01.4 +19 45 06           ~ 73 0
15 NGC 2841 LIN 09 22 02.6778711696 +50 58 35.737082868 10.43 10.09 9.22     ~ 1113 1
16 UGC 5005 LSB 09 24 29.39972 +22 16 29.0213   18       ~ 81 0
17 NGC 2903 AGN 09 32 10.111 +21 30 02.99 10.44 9.75 9.07 8.68   ~ 1204 3
18 NGC 2976 GiG 09 47 15.458 +67 54 58.97 11.77 11.03 10.16 9.51   ~ 712 1
19 M 81 Sy2 09 55 33.1726556496 +69 03 55.062505368   7.89 6.94     ~ 4725 3
20 NGC 3104 AG? 10 03 57.185 +40 45 41.43   14.2       ~ 142 0
21 NGC 3198 EmG 10 19 54.990 +45 32 58.88 10.83 10.87 10.33     ~ 946 1
22 LSB F568-3 LSB 10 26 59 +22 13.6           ~ 81 0
23 NGC 3274 EmG 10 32 17.2253817864 +27 40 07.165226244   13.30   12.77   ~ 261 0
24 UGC 5750 AG? 10 35 45.12 +20 59 24.9   17       ~ 81 0
25 NGC 3521 EmG 11 05 48.5680991376 -00 02 09.245076540 10.06 9.83 9.02 10.1 9.6 ~ 879 2
26 NGC 3621 Sy2 11 18 16.300 -32 48 45.36 10.10 9.44 9.56 8.07 10.1 ~ 661 3
27 Z 268-36 GiC 11 26 40.4656762968 +53 44 48.012539280   14.5       ~ 164 0
28 LSB F571-8 LSB 11 33 54.3 +19 21 18           ~ 50 0
29 Z 97-40 LIN 11 39 14.8736598984 +17 08 37.200948684   14.8       ~ 157 0
30 NGC 4242 GiG 12 17 30.1835103480 +45 37 09.508940220   11.37 10.83     ~ 285 1
31 NGC 4288 GiG 12 20 38.119 +46 17 27.67   13.6       ~ 187 0
32 NGC 4395 Sy2 12 25 48.8633109888 +33 32 48.700168152 10.84 10.54 10.11 9.98   ~ 1286 1
33 Z 187-44 GiP 12 27 05.566 +37 08 30.39   14.19   13.55   ~ 217 0
34 Z 216-4 GiG 12 27 40.90 +43 29 44.0 13.75 13.10 12.7 12.33   ~ 270 0
35 NGC 4455 EmG 12 28 44.1242000448 +22 49 13.538159508   15.5       ~ 222 0
36 M 94 SyG 12 50 53.0737971432 +41 07 12.900884628 9.15 8.96 8.24 7.78   ~ 1476 2
37 NGC 4789A GiC 12 54 05.248 +27 08 58.67 14.37 14.23 13.95 13.84   ~ 614 1
38 M 63 LIN 13 15 49.2741893928 +42 01 45.728076108   9.34 8.59 8.35   ~ 1292 2
39 NGC 5204 LSB 13 29 36.508 +58 25 07.43   11.84   11.37   ~ 494 0
40 Z 272-13 AG? 13 54 45.602 +53 54 20.06   14.2       ~ 219 0
41 Z 247-23 AG? 14 22 32.1696941112 +45 23 01.932649116   15.7       ~ 78 0
42 VLSB F579-V01 LSB 14 32 48.1 +22 45 58           ~ 42 0
43 LSB F583-4 LSB 15 52 12 +18 47.1           ~ 60 0
44 LEDA 86657 LSB 15 57 27.483 +20 39 59.12           ~ 104 0
45 NGC 6946 H2G 20 34 52.332 +60 09 13.24   10.5       ~ 2661 2
46 Z 471-1 AG? 21 14 31.75 +26 44 04.5   15.6       ~ 64 0
47 ESO 287-13 AG? 21 23 13.9872161040 -45 46 23.292820920   12.94   11.84 12.4 ~ 83 0
48 Z 514-45 GiG 22 30 33.98 +33 49 10.8   15.5       ~ 73 0
49 NGC 7331 LIN 22 37 04.0506038088 +34 24 56.800076508 10.65 10.35 9.48     ~ 1284 2
50 NGC 7339 G 22 37 46.890 +23 47 12.02   13.1       ~ 138 0
51 Z 533-8 GiG 23 29 58.540 +40 59 31.98   15.7       ~ 110 0
52 Z 476-106 GiP 23 40 39.86 +26 14 11.1   14.5       ~ 146 0
53 NGC 7793 GiG 23 57 49.7540045856 -32 35 27.701550744 10.26 9.74 9.28 9.06 9.7 ~ 1188 2

To bookmark this query, right click on this link: simbad:objects in 2014MNRAS.445.3823R and select 'bookmark this link' or equivalent in the popup menu