2012AJ....143...40M

Query : 2012AJ....143...40M

2012AJ....143...40M - Astron. J., 143, 40 (2012/February-0)

The baryonic Tully-Fisher relation of gas-rich galaxies as a test of ΛCDM and MOND.

McGAUGH S.S.

Abstract (from CDS):

The baryonic Tully-Fisher relation (BTFR) is an empirical relation between baryonic mass and rotation velocity in disk galaxies. It provides tests of galaxy formation models in ΛCDM and of alternative theories like modified Newtonian dynamics (MOND). Observations of gas-rich galaxies provide a measure of the slope and normalization of the BTFR that is more accurate (if less precise) than that provided by star-dominated spirals, as their masses are insensitive to the details of stellar population modeling. Recent independent data for such galaxies are consistent with Mb= AV 4f with A = 47 ±6 M☉/km4.s4. This is equivalent to MOND with a0= 1.3 ±0.3 Å/s2. The scatter in the data is consistent with being due entirely to observational uncertainties. It is unclear why the physics of galaxy formation in ΛCDM happens to pick out the relation predicted by MOND. We introduce a feedback efficacy parameter ε to relate halo properties to those of the galaxies they host. ε correlates with star formation rate and gas fraction in the sense that galaxies that have experienced the least star formation have been most impacted by feedback.

Abstract Copyright: ∼

Journal keyword(s): galaxies: dwarf - galaxies: irregular - galaxies: kinematics and dynamics - galaxies: spiral

Simbad objects: 54

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Number of rows : 54
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-03-01-015 G 00 01 57.9 -15 27 50   11.50 11.10 10.93   ~ 782 2
2 LEDA 168300 AG? 02 24 34.20 +56 00 43.0   16.2       ~ 31 0
3 UGCA 92 AG? 04 32 03.8366 +63 36 51.243   16.15       ~ 128 0
4 NGC 1560 GiG 04 32 49.087 +71 52 59.20   12.1       ~ 264 0
5 LEDA 15535 AG? 04 33 54.70 -65 41 52.0   16.3   15.5 15.6 ~ 14 0
6 NAME Cam B G 04 53 07.1 +67 05 57   16.71       ~ 79 0
7 ESO 85-88 AG? 05 27 10.3731 -63 14 34.835   16.90   16.11   ~ 18 0
8 NGC 2337 rG 07 10 13.6374445464 +44 27 26.716619844   13.1       ~ 94 1
9 Z 57-6 AG? 07 13 51.60 +10 31 19.0   14.9       ~ 105 0
10 NGC 2366 H2G 07 28 52.4529 +69 12 38.859 12.25 11.86 11.39 11.33   ~ 801 0
11 NGC 2403 AGN 07 36 51.3381434280 +65 36 09.650825640 9.31 8.84 8.38 8.19   ~ 1887 1
12 [KK98a] 073940.2+164047 G 07 42 31.2 +16 33 40   15.6       ~ 52 0
13 Z 88-7 G 07 57 01.027 +14 23 47.66   16.0       ~ 161 0
14 IC 2233 LSB 08 13 58.909 +45 44 31.74 12.87 13.41 12.63 12.80   ~ 253 1
15 Z 263-63 GiP 08 37 41.489 +51 39 08.58   13.50       ~ 149 1
16 LEDA 86666 LSB 08 53 03.83 +18 26 09.4           ~ 81 0
17 LEDA 86668 LSB 09 02 53.357 +20 04 32.21   16.9       ~ 108 0
18 NGC 2915 AG? 09 26 11.532 -76 37 34.75 13.13 12.93 12.68 11.90 12.8 ~ 371 2
19 LEDA 86670 LSB 09 37 36.6 +21 46 15           ~ 53 0
20 NGC 3109 AG? 10 03 06.877 -26 09 34.46 11.10 10.42 10.04 9.91   ~ 825 2
21 LEDA 2806869 AG? 10 05 58.644 +23 51 50.57           ~ 19 0
22 Z 64-68 AG? 10 07 20.182 +10 21 40.16   13.78   13.24   ~ 125 0
23 NGC 3198 EmG 10 19 54.990 +45 32 58.88 10.83 10.87 10.33     ~ 946 1
24 LEDA 86619 G 10 26 06.360 +22 26 00.96           ~ 75 0
25 LSB F568-3 LSB 10 26 59 +22 13.6           ~ 81 0
26 IC 2574 AG? 10 28 23.6148831408 +68 24 43.440012756 11.70 11.07 10.87 10.74   ~ 703 1
27 UGC 5716 AG? 10 31 43.26364 +25 18 27.3731   17       ~ 82 0
28 NGC 3274 EmG 10 32 17.2253817864 +27 40 07.165226244   13.30   12.77   ~ 261 0
29 LEDA 86672 LSB 10 45 02.064 +22 03 15.54           ~ 91 0
30 UGC 6145 LSB 11 05 34.70376 -01 51 51.4584   16.548   16.085   ~ 47 0
31 LEDA 86674 LSB 11 26 19.08 +18 50 09.3           ~ 57 0
32 NGC 3741 AG? 11 36 05.754 +45 17 02.96 15.01 14.55 14.23 14.06   ~ 237 0
33 Z 243-15 AG? 11 50 46.9776888960 +45 48 26.384111676   14.6       ~ 89 0
34 Z 269-28 GiC 11 59 08.734 +52 42 28.03   14.5       ~ 182 0
35 Z 315-26 AG? 12 14 08.40 +66 05 41.0   14.60       ~ 89 1
36 UGC 8011 GiC 12 52 21.026 +21 37 46.00   18       ~ 41 0
37 NGC 4789A GiC 12 54 05.248 +27 08 58.67 14.37 14.23 13.95 13.84   ~ 614 1
38 UGC 8055 LSB 12 56 04.6621560288 +03 48 46.548862992   17       ~ 51 0
39 MCG+08-24-048 AG? 13 08 03.552 +46 49 40.02   17       ~ 79 0
40 Z 245-36 AG? 13 14 27.997 +45 55 11.14 13.63 13.26 13.02 12.81   ~ 297 0
41 NGC 5204 LSB 13 29 36.508 +58 25 07.43   11.84   11.37   ~ 494 0
42 NGC 5229 LSB 13 34 02.831 +47 54 55.68   14.6       ~ 149 0
43 Z 218-34 AG? 13 39 53.75 +40 44 25.3 15.37 14.56 14.20 14.10   ~ 165 0
44 Z 190-66 AG? 13 50 51.3127548768 +38 01 14.958828876 15.56 14.78   14.33   ~ 161 0
45 MCG+06-31-023 AG? 13 54 48.8114 +35 50 07.775   16.5   15.20   ~ 123 1
46 NGC 5585 GiG 14 19 48.204 +56 43 44.58   11.73 11.216 11.12 10.123 ~ 455 0
47 Z 247-23 AG? 14 22 32.1696941112 +45 23 01.932649116   15.7       ~ 78 0
48 GALEXASC J142430.85-165914.3 AG? 14 24 31.00 -16 59 16.6   15.0   14.8 15.0 ~ 6 0
49 LEDA 51659 G 14 28 03.7 -46 18 06   15       ~ 73 1
50 LEDA 87128 LSB 14 33 20.315 +26 59 52.94   14.65       ~ 41 0
51 ESO 461-36 G 20 03 57.4 -31 40 53   17.06   16.2 16.1 ~ 73 1
52 LEDA 166192 LSB 20 30 32.9 +60 21 17   16.49       ~ 61 0
53 NGC 6946 H2G 20 34 52.332 +60 09 13.24   10.5       ~ 2661 2
54 MCG-02-53-003 G 20 46 51.7 -12 50 54 15.75 15.18 14.83 14.46   ~ 470 1

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