2010AJ....140..663G

Query : 2010AJ....140..663G

2010AJ....140..663G - Astron. J., 140, 663-676 (2010/September-0)

The slope of the baryonic Tully-Fisher relation.

GUROVICH S., FREEMAN K., JERJEN H., STAVELEY-SMITH L. and PUERARI I.

Abstract (from CDS):

We present the results of a baryonic Tully-Fisher relation (BTFR) study for a local sample of relatively isolated disk galaxies. We derive a BTFR with a slope near 3 measured over about 4 dex in baryon mass for our combined H I and bright spiral disk samples. This BTFR is significantly flatter and has less scatter than the TFR (stellar mass only) with its slope near 4 reported for other samples and studies. A BTFR slope near 3 is in better agreement with the expected slope from simple ΛCDM cosmological simulations that include both stellar and gas baryons. The scatter in the TFR/BTFR appears to depend on W20: galaxies that rotate slower have more scatter. The atomic gas-to-stars ratio shows a break near W20= 250 km/s probably associated with a change in star formation efficiency. In contrast, the absence of such a break in the BTFR suggests that this relation was probably set at the main epoch of baryon dissipation rather than as a product of later galactic evolution.

Abstract Copyright: ∼

Journal keyword(s): cosmology: observations - dark matter - galaxies: evolution - galaxies: formation

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 - 2026 		#notes
1 LEDA 240489 AG? 00 39 16.320 -76 20 54.58   15.2   14.2 14.7 ~ 10 0
2 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
3 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
4 ESO 52-10 AG? 01 56 50.50 -68 59 42.9   15.84   15.29 16.1 ~ 14 0
5 NGC 925 H2G 02 27 16.913 +33 34 43.97   10.69 10.12 9.55   ~ 818 1
6 NGC 1365 Sy1 03 33 36.458 -36 08 26.37 10.48 10.08 9.63 8.79 9.7 ~ 1987 2
7 NGC 1425 EmG 03 42 11.4831633240 -29 53 36.186684252   11.61   11.6 10.9 ~ 209 0
8 LEDA 15535 AG? 04 33 54.70 -65 41 52.0   16.3   15.5 15.6 ~ 14 0
9 ESO 84-40 AG? 04 44 59.53 -62 42 22.2   15.01   14.42 14.4 ~ 14 0
10 LEDA 16318 G 04 54 55.6 -61 33 51   16.1   15.5 16.4 ~ 12 0
11 ESO 85-88 AG? 05 27 10.3731 -63 14 34.835   16.90   16.11   ~ 18 0
12 NGC 2090 GiG 05 47 01.8557074752 -34 15 01.679264784 12.17 11.70 11.20 10.43 11.0 ~ 206 1
13 HIPASS J0554-71 AG? 05 54 41.0815 -71 55 40.277           ~ 6 0
14 HIPASS J0653-73 AG? 06 53 51.8264 -73 42 26.532           ~ 10 0
15 HIPASS J0736-74 AG? 07 36 10.40 -74 41 14.9   15.9   15.8 15.6 ~ 6 0
16 NGC 2403 AGN 07 36 51.3381434280 +65 36 09.650825640 9.31 8.84 8.38 8.19   ~ 1887 1
17 NGC 2541 GiG 08 14 40.1160678912 +49 03 42.021679932 12.03 12.26 11.80     ~ 333 1
18 M 81 Sy2 09 55 33.1726556496 +69 03 55.062505368   7.89 6.94     ~ 4725 3
19 NGC 3198 EmG 10 19 54.990 +45 32 58.88 10.83 10.87 10.33     ~ 946 1
20 NGC 3319 SyG 10 39 09.533 +41 41 12.74   11.48 11.07     ~ 325 1
21 M 95 GiP 10 43 57.7313485800 +11 42 13.301191332 10.71 10.51 9.73 9.48   ~ 1238 2
22 M 96 GiP 10 46 45.744 +11 49 11.78 10.42 10.15 9.25 8.99   ~ 862 1
23 ESO 318-13 AG? 10 47 41.60 -38 51 13.2   15.02   13.96   ~ 45 0
24 ESO 7-4 AG? 11 13 20.907 -86 16 16.49           ~ 10 0
25 NGC 3621 Sy2 11 18 16.300 -32 48 45.36 10.10 9.44 9.56 8.07 10.1 ~ 661 3
26 M 66 AGN 11 20 15.0 +12 59 29 9.85 9.65 8.92     ~ 1509 4
27 ESO 321-14 AG? 12 13 48.8792 -38 14 00.250 16.32 15.70 15.35 15.20 15.2 ~ 92 0
28 NGC 4414 GiC 12 26 27.1276893168 +31 13 24.626206488 11.12 10.96 10.12     ~ 593 2
29 NGC 4535 H2G 12 34 20.3443516704 +08 11 51.908488116   11.1       ~ 679 0
30 NGC 4536 H2G 12 34 27.12887 +02 11 16.3680 11.14 11.16 10.55 17.393   ~ 913 3
31 M 91 LIN 12 35 26.4446761320 +14 29 46.760333748   14.63 13.57     ~ 639 0
32 NGC 4725 Sy2 12 50 26.5716367992 +25 30 02.733090588   13.45 12.44     ~ 727 2
33 ESO 383-92 Sy2 13 50 41.9785336848 -35 54 54.507884004   14.95   14.21 14.8 ~ 17 0
34 GALEXASC J142430.85-165914.3 AG? 14 24 31.00 -16 59 16.6   15.0   14.8 15.0 ~ 6 0
35 NAME Ursa Major Cluster ClG 15 08.8 +67 07           ~ 424 1
36 LEDA 3893721 EmG 18 01 39.6169016880 -72 50 53.995926696   15.50   14.34 14.7 ~ 15 0
37 ESO 140-19 AG? 18 22 46.3462 -62 16 22.777   16.59   15.0 15.7 ~ 21 0
38 HIPASS J1934-67 G 19 34 05.2 -67 53 46           ~ 2 0
39 IC 5008 AG? 20 32 45.03 -72 41 41.0   15.55   14.84 15.7 ~ 14 0
40 IC 5028 AG? 20 43 22.03 -65 38 52.1   15.24   14.83 15.1 ~ 17 0
41 NGC 7331 LIN 22 37 04.0506038088 +34 24 56.800076508 10.65 10.35 9.48     ~ 1284 2
42 ESO 148-6 AG? 23 20 35.79 -61 51 17.4   15.46   14.63 15.0 ~ 18 0
43 NAME Local Group GrG ~ ~           ~ 9325 0

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