2019ApJ...873..106D

Query : 2019ApJ...873..106D

2019ApJ...873..106D - Astrophys. J., 873, 106-106 (2019/March-2)

The Radial Acceleration Relation (RAR): crucial cases of Dwarf disks and low-surface-brightness galaxies.

DI PAOLO C., SALUCCI P. and FONTAINE J.P.

Abstract (from CDS):

McGaugh et al. have found, in a large sample of disk systems, a tight nonlinear relationship between the total radial accelerations g and their components gb that have arisen from the distribution of the baryonic matter. Here, we investigate the existence of such a relation in Dwarf Disk Spirals and Low Surface Brightness (LSB) galaxies on the basis of Karukes & Salucci and Di Paolo & Salucci. We have accurate mass profiles for 36 Dwarf Disk Spirals and 72 LSB galaxies. These galaxies have accelerations that cover the McGaugh range but also reach out to one order of magnitude below the smallest accelerations present in McGaugh et al. and span different Hubble Types. We found, in our samples, that the g versus gb relation has a very different profile and also other intrinsic novel properties, among those, the dependence on a second variable: the galactic radius, normalized to the optical radius Ropt, at which the two accelerations are measured. We show that the new far from trivial g versus (gb,r/Ropt) relationship is a direct consequence of the complex coordinated mass distributions of the baryons and the dark matter (DM) in disk systems. Our analysis shows that the McGaugh et al. relation is a limiting case of a new universal relation that can be very well framed in the standard "DM halo in the Newtonian Gravity" paradigm.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): dark matter - galaxies: fundamental parameters - galaxies: kinematics and dynamics - galaxies: structure

Simbad objects: 72

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Number of rows : 72
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 NGC 100 LSB 00 24 02.837 +16 29 11.00   14.6       ~ 129 0
2 NGC 247 LSB 00 47 08.554 -20 45 37.44 10.11 9.61 9.10 8.87   ~ 441 2
3 UGC 628 LSB 01 00 51.98838 +19 28 33.4966   17       ~ 52 0
4 UGC 634 LSB 01 01 25.171 +07 37 33.57   15.7       ~ 79 0
5 UGC 731 AG? 01 10 43.98 +49 36 07.9   17       ~ 99 0
6 UGC 1230 LSB 01 45 32.251 +25 31 17.28   17       ~ 89 0
7 UGC 1281 LSB 01 49 31.71 +32 35 16.2   13.0       ~ 167 0
8 UGC 1551 LSB 02 03 37.495 +24 04 31.89   14.1       ~ 77 0
9 NGC 959 GiG 02 32 23.9241457416 +35 29 40.455279636 12.87 12.95 12.38 11.79   ~ 116 1
10 UGC 2684 AG? 03 20 23.71 +17 17 45.1   18       ~ 77 0
11 UGC 2936 Sy2 04 02 48.255 +01 57 56.63   14.60 13.33 12.51 11.28 ~ 98 0
12 UGC 3137 AG? 04 46 16.976 +76 25 08.04   15.5       ~ 73 0
13 UGC 3174 GiC 04 48 34.50 +00 14 30.0   14.7   13.9 14.4 ~ 66 0
14 UGC 3371 AG? 05 56 35.98 +75 19 01.9   17       ~ 89 0
15 ESO 488-49 EmG 05 58 39.37 -25 24 53.3   15.01   14.38 15.1 ~ 51 0
16 ESO 206-14 AG? 06 28 28.52 -48 45 50.0   14.92   13.74   ~ 34 0
17 UGC 4115 G 07 57 01.027 +14 23 47.66   16.0       ~ 152 0
18 AGC 180072 LSB 08 09 32.6 +22 33 34           ~ 49 0
19 IC 2233 LSB 08 13 58.909 +45 44 31.74 12.87 13.41 12.63 12.80   ~ 241 1
20 NGC 2552 AG? 08 19 20.5355420472 +50 00 34.590204468 13.44 13.00 12.56     ~ 266 1
21 LEDA 86665 LSB 08 46 37.90 +18 53 23.7   17.21       ~ 49 0
22 LEDA 86666 LSB 08 53 03.83 +18 26 09.4           ~ 76 0
23 UGC 5005 LSB 09 24 29.387 +22 16 29.37   18       ~ 77 0
24 LEDA 86670 LSB 09 37 36.6 +21 46 15           ~ 51 0
25 UGC 5272 AG? 09 50 22.769 +31 29 17.80   14.48   14.10   ~ 197 0
26 ESO 374-3 EmG 09 51 57.4518841512 -33 04 25.141483776   14.13   13.21 13.0 ~ 46 0
27 LSB F568-1 LSB 10 25 42.1 +22 25 28           ~ 62 0
28 LSB F568-3 LSB 10 26 59 +22 13.6           ~ 79 0
29 UGC 5716 AG? 10 31 43.267 +25 18 27.40   17       ~ 78 0
30 NGC 3274 EmG 10 32 17.2253817864 +27 40 07.165226244   13.30   12.77   ~ 242 0
31 UGC 5750 AG? 10 35 45.12 +20 59 24.9   17       ~ 76 0
32 2MASS J10395248+2050493 LIN 10 39 52.4820927048 +20 50 49.375560660   14.20       ~ 96 0
33 ESO 376-10 GiC 10 42 00.2 -36 56 06   13.71   12.42   ~ 45 0
34 LEDA 86672 LSB 10 45 02.064 +22 03 15.54           ~ 83 0
35 UGC 5999 LSB 10 52 58.652 +07 37 11.27   18       ~ 54 0
36 ESO 215-39 EmG 11 17 04.215 -49 12 05.26   14.08   13.35   ~ 56 1
37 LEDA 86674 LSB 11 26 19.08 +18 50 09.3           ~ 53 0
38 LSB F571-8 LSB 11 33 54.3 +19 21 18           ~ 49 0
39 2dFGRS TGN449Z119 LSB 11 59 24.618 +01 26 02.63   15.6   15.112   ~ 19 0
40 UGC 7178 AG? 12 11 03.666 +02 00 24.04   15.852   15.429   ~ 57 1
41 NGC 4395 Sy2 12 25 48.8633109888 +33 32 48.700168152 10.84 10.54 10.11 9.98   ~ 1177 1
42 NGC 4455 EmG 12 28 44.1242000448 +22 49 13.538159508   15.5       ~ 210 0
43 ESO 322-19 EmG 12 29 07.196 -40 40 24.55   14.84   13.60 14.4 ~ 36 0
44 LSB F574-1 LSB 12 38 13.3 +22 17 59           ~ 60 0
45 LSB F574-2 LSB 12 46 47.3 +21 48 12           ~ 26 0
46 ESO 268-44 EmG 12 48 42.2063155080 -45 00 29.351921400   14.44   13.25 13.6 ~ 51 0
47 ESO 323-42 GiG 12 55 01.2732136848 -40 58 14.851635060   14.10   12.80   ~ 51 0
48 ESO 323-73 EmG 13 04 01.6846647984 -38 11 56.655416940   14.25   13.26 13.86 ~ 33 0
49 ESO 382-6 AG? 13 05 32.377 -32 57 37.71   15.40   14.33 15.94 ~ 23 0
50 NGC 5023 EmG 13 12 11.8036148808 +44 02 17.328663600   13.2       ~ 256 0
51 ESO 444-21 EmG 13 23 30.645 -30 06 51.31   15.60   14.81 15.33 ~ 57 0
52 ESO 444-47 Sy2 13 28 24.972 -31 51 27.82   14.82   13.83 14.3 ~ 65 0
53 NGC 5204 LSB 13 29 36.508 +58 25 07.43   11.84   11.37   ~ 471 0
54 IC 4315 Sy2 13 40 03.175 -25 28 28.22   14.99   13.94   ~ 39 0
55 UGC 8837 AG? 13 54 45.602 +53 54 20.06   14.2       ~ 207 0
56 UGC 9211 AG? 14 22 32.1696941112 +45 23 01.932649116   15.7       ~ 77 0
57 VLSB F579-V01 LSB 14 32 48.1 +22 45 58           ~ 38 0
58 LSB F583-4 LSB 15 52 12 +18 47.1           ~ 57 0
59 LEDA 86657 LSB 15 57 27.483 +20 39 59.12           ~ 99 0
60 LEDA 87309 LSB 17 03 56.1 +10 10 49           ~ 15 0
61 UGC 11454 AG? 19 31 33.6588790608 +49 52 46.985444616   17       ~ 17 0
62 ESO 234-13 EmG 20 22 32.483 -50 45 10.52   14.66   13.43 14.1 ~ 44 0
63 UGC 11557 LSB 20 24 00.6851855760 +60 11 41.414285040   14.5       ~ 76 0
64 UGC 11583 LSB 20 30 15.30 +60 26 25.0   17       ~ 64 0
65 ESO 186-55 Sy2 20 31 05.6543962632 -52 36 48.162507624   14.76   13.39 14.0 ~ 31 0
66 ESO 400-37 GiP 20 31 13.520 -33 28 38.40   14.58   13.64   ~ 38 0
67 UGC 11616 AG? 20 41 13.440 +63 30 38.51   17       ~ 29 0
68 UGC 11648 AG? 20 53 09.507 +67 10 32.95   17       ~ 37 0
69 UGC 11748 GiG 21 27 39.7191280248 +45 28 58.796320620   17       ~ 31 0
70 UGC 11819 AG? 21 49 10.7170526016 +41 56 53.546658468   17       ~ 22 0
71 ESO 534-20 EmG 22 44 10.4168101584 -22 58 24.812947416   16.08   14.97   ~ 13 0
72 NGC 7589 Sy1 23 18 15.6790109856 +00 15 40.267016028   15.01 17.01     ~ 91 3

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