2009A&A...496..659T


Query : 2009A&A...496..659T

2009A&A...496..659T - Astronomy and Astrophysics, volume 496, 659-668 (2009/3-4)

MOND and the dark baryons.

TIRET O. and COMBES F.

Abstract (from CDS):

We consider for the first time the implications for the modified gravity MOND model of galaxies, of the presence of dark baryons, in the form of cold molecular gas in galaxy discs. We show that MOND models of rotation curves are still valid and universal, but the critical acceleration a0 separating the Newtonian and MONDian regimes has a lower value. We quantify this modification as a function of the scale factor c between the total gas of the galaxy and the measured atomic gas. The main analysis concerns 43 resolved rotation curves and allows us to find the best pair (a0=0.96x10–10m/s2, c=3), which is also compatible with the one obtained from a second method minimizing the scatter in the baryonic Tully-Fisher relation.

Abstract Copyright:

Journal keyword(s): galaxies: general - galaxies: kinematics and dynamics - galaxies: spiral - galaxies: structure - cosmology: dark matter

Simbad objects: 43

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Number of rows : 43
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 NGC 24 GiG 00 09 56.542 -24 57 47.27 12.12 12.20 11.58 11.46 11.5 ~ 224 1
2 UGC 128 LSB 00 13 50.93 +35 59 36.6   16.5       ~ 91 1
3 NGC 45 LSB 00 14 04.0072128696 -23 10 55.132646808 11.92 11.21 10.73 10.58 10.4 ~ 241 1
4 NGC 55 GiG 00 14 53.602 -39 11 47.86 8.54 8.58 7.87 7.84   ~ 739 2
5 NGC 247 LSB 00 47 08.554 -20 45 37.44 10.11 9.61 9.10 8.87   ~ 406 2
6 NGC 253 SyG 00 47 33.134 -25 17 19.68   8.03   6.94 8.1 ~ 3125 2
7 NGC 300 GiG 00 54 53.4465638304 -37 41 03.168402396 8.83 8.69 8.13 7.46   ~ 1402 2
8 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 5491 1
9 NGC 801 AGN 02 03 44.7926518608 +38 15 31.615649064   14.23 13.47     ~ 170 0
10 NGC 925 H2G 02 27 16.913 +33 34 43.97   10.69 10.12 9.55   ~ 731 1
11 NGC 1003 GiG 02 39 16.893 +40 52 20.25   12.1   10.83   ~ 172 0
12 UGC 2259 GiP 02 47 55.4194406880 +37 32 18.528735876   14.3   12.8   ~ 121 0
13 UGC 2885 G 03 53 02.4589142328 +35 35 22.174136556   14.4       ~ 136 0
14 NGC 1560 GiG 04 32 49.087 +71 52 59.20   12.1       ~ 244 0
15 NGC 2366 H2G 07 28 51.85 +69 12 31.1 12.25 11.86 11.39 11.33   ~ 731 0
16 NGC 2403 AGN 07 36 51.3381434280 +65 36 09.650825640 9.31 8.84 8.38 8.19   ~ 1692 1
17 NGC 2841 LIN 09 22 02.6778711696 +50 58 35.737082868 10.43 10.09 9.22     ~ 1024 1
18 NGC 2915 G 09 26 11.532 -76 37 34.75 13.13 12.93 12.68 11.90 12.8 ~ 318 2
19 NGC 2905 H2G 09 32 10.111 +21 30 02.99 10.44 9.75 9.07 8.68   ~ 1050 3
20 NGC 2998 LIN 09 48 43.6305155160 +44 04 53.217027660   13.3       ~ 200 0
21 NGC 3109 G 10 03 06.877 -26 09 34.46 11.10 10.42 10.04 9.91   ~ 731 2
22 NGC 3198 EmG 10 19 54.990 +45 32 58.88 10.83 10.87 10.33     ~ 850 1
23 IC 2574 G 10 28 23.6148831408 +68 24 43.440012756 11.70 11.07 10.87 10.74   ~ 633 1
24 NGC 3726 GiG 11 33 21.1367545656 +47 01 45.280222428   11.11   10.02   ~ 338 0
25 NGC 4203 LIN 12 15 05.0549203560 +33 11 50.383965120   12.98 11.99     ~ 473 2
26 NGC 4242 GiG 12 17 30.1835103480 +45 37 09.508940220   11.37 10.83     ~ 244 1
27 M 106 Sy2 12 18 57.620 +47 18 13.39   9.14 8.41 8.11   ~ 2228 3
28 NGC 4395 Sy2 12 25 48.8633109888 +33 32 48.700168152 10.84 10.54 10.11 9.98   ~ 1072 1
29 NGC 4725 Sy2 12 50 26.5716367992 +25 30 02.733090588   13.45 12.44     ~ 649 2
30 UGC 8024 GiC 12 54 05.248 +27 08 58.67 14.37 14.23 13.95 13.84   ~ 560 1
31 NGC 5033 Sy1 13 13 27.535 +36 35 37.14   11.01 12.03 9.73   ~ 828 3
32 UGC 8320 G 13 14 27.997 +45 55 11.14 13.63 13.26 13.02 12.81   ~ 256 0
33 M 63 LIN 13 15 49.2741893928 +42 01 45.728076108   9.34 8.59 8.35   ~ 1131 2
34 UGC 8333 GiC 13 15 53.778 +25 26 10.13   17       ~ 109 0
35 NGC 5390 LIN 13 55 39.9385716624 +40 27 42.380606592   12.81 11.93 10.04   ~ 334 1
36 NGC 5533 Sy2 14 16 07.7507477232 +35 20 37.879981584   13.0       ~ 160 1
37 NGC 5585 GiG 14 19 48.204 +56 43 44.58   11.73 11.216 11.12 10.123 ~ 402 0
38 NGC 5906 GiG 15 15 53.687 +56 19 43.86   11.4       ~ 719 1
39 NGC 6503 LIN 17 49 26.4207792072 +70 08 39.604132176 11.56 10.95 10.28 9.92   ~ 493 1
40 NGC 6674 G 18 38 33.889 +25 22 30.39   13.7       ~ 103 0
41 NGC 6946 H2G 20 34 52.332 +60 09 13.24   10.5       ~ 2373 2
42 NGC 7331 LIN 22 37 04.0506038088 +34 24 56.800076508 10.65 10.35 9.48     ~ 1164 2
43 NGC 7793 GiG 23 57 49.7540045856 -32 35 27.701550744 10.26 9.74 9.28 9.06 9.7 ~ 1016 2

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2022.05.27-08:43:10

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