2017MNRAS.472.4551E

Query : 2017MNRAS.472.4551E

2017MNRAS.472.4551E - Mon. Not. R. Astron. Soc., 472, 4551-4562 (2017/December-3)

The relation between specific baryon angular momentum and mass for a sample of nearby low-mass galaxies with resolved H I kinematics.

ELSON E.C.

Abstract (from CDS):

This paper investigates the relationship between specific baryon angular momentum jb and baryon mass Mb for a sample of nearby late-type galaxies with resolved H I kinematics. This work roughly doubles the number of galaxies with Mb <= 1010 M☉ used to study the jb-Mb relation. Most of the galaxies in the sample have their baryon mass dominated by their gas content, thereby offering jb and Mb measures that are relatively unaffected by uncertainties arising from the stellar mass-to-light ratio. Measured H I surface density radial profiles together with optical and rotation curve data from the literature are used to derive a best-fitting relation given by jb=qMb , with α = 0.62 ± 0.02 and log10 q = -3.35 ± 0.25. This result is consistent with the jb Mb2/3 relation that is theoretically expected and also measured by Obreschkow & Glazebrook for their full sample of THINGS spiral galaxies, yet differs to their steeper relation found for subsets with fixed bulge fraction. The 30 arcsec spatial resolution of the H I imaging used in this study is significantly lower than that of the THINGS imaging used by Obreschkow & Glazebrook, yet the results presented in this work are clearly shown to contain no significant systematic errors due to the low-resolution imaging.

Abstract Copyright: © 2017 The Author Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): galaxies: evolution - galaxies: fundamental parameters - galaxies: fundamental parameters

Simbad objects: 42

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Number of rows : 42
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 Z 503-26 LSB 01 49 31.71 +32 35 16.2   13.0       ~ 171 0
2 NGC 926 LIN 02 26 06.7119502512 -00 19 54.937627788   14.05 13.44     ~ 68 0
3 NGC 925 H2G 02 27 16.913 +33 34 43.97   10.69 10.12 9.55   ~ 818 1
4 Z 505-6 GiG 02 33 18.20 +33 29 28.0   14.9   13.59   ~ 91 0
5 Z 539-46 GiG 02 33 42.96 +40 31 41.2   15.0   13.45   ~ 71 0
6 NGC 1156 GiG 02 59 42.8528847264 +25 14 28.352017320 12.13 12.32 11.74     ~ 323 1
7 MCG+13-05-007a AG? 05 56 35.98 +75 19 01.9   17       ~ 89 0
8 NGC 2337 rG 07 10 13.6374445464 +44 27 26.716619844   13.1       ~ 94 1
9 MCG+07-16-011 AG? 07 41 25.777 +40 06 46.05   16.0       ~ 125 0
10 Z 349-16 AG? 08 07 10.05 +80 07 36.5   15.7       ~ 53 0
11 UGC 4305 IG 08 19 04.9864630512 +70 43 13.086910452 12.06 11.72 11.39 11.11   ~ 812 2
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 Z 237-13 G 08 43 21.8462696016 +45 44 09.601368324   15.1       ~ 71 0
15 Z 152-72 EmG 09 50 22.769 +31 29 17.80   14.48   14.10   ~ 207 0
16 NGC 3104 AG? 10 03 57.185 +40 45 41.43   14.2       ~ 142 0
17 NGC 3274 EmG 10 32 17.2253817864 +27 40 07.165226244   13.30   12.77   ~ 261 0
18 Z 184-6 AG? 10 42 42.787 +34 26 57.39   13.31 13.09 12.84 12.85 ~ 173 0
19 MCG+11-13-039 GiG 10 49 36.412 +65 32 01.07 15.55 15.27 14.79 14.55   ~ 170 0
20 Z 268-36 GiC 11 26 40.4656762968 +53 44 48.012539280   14.5       ~ 164 0
21 Z 242-72 AG? 11 40 05.7497793984 +45 56 31.750795896   14.6       ~ 87 0
22 NGC 4068 AG? 12 04 03.265 +52 35 26.05   13.29   12.77   ~ 189 0
23 NGC 4190 LSB 12 13 44.765 +36 38 02.49 13.88 13.40 13.25 12.86   ~ 224 0
24 NGC 4204 GiC 12 15 14.359 +20 39 32.68   14.3       ~ 162 0
25 NGC 4242 GiG 12 17 30.1835103480 +45 37 09.508940220   11.37 10.83     ~ 285 1
26 NGC 4288 GiG 12 20 38.119 +46 17 27.67   13.6       ~ 187 0
27 NGC 4395 Sy2 12 25 48.8633109888 +33 32 48.700168152 10.84 10.54 10.11 9.98   ~ 1286 1
28 Z 187-44 GiP 12 27 05.566 +37 08 30.39   14.19   13.55   ~ 217 0
29 MCG+07-26-010 EmG 12 28 44.078 +43 13 25.79   16.0       ~ 106 0
30 Z 216-10 LSB 12 32 26.893 +42 42 14.84   13.7       ~ 130 0
31 IC 3687 GiG 12 42 15.1540831512 +38 30 05.844632940   15.5       ~ 153 0
32 NGC 4707 AG? 12 48 21.666 +51 09 53.81   15.2       ~ 113 0
33 NGC 5204 LSB 13 29 36.508 +58 25 07.43   11.84   11.37   ~ 494 0
34 Z 247-23 AG? 14 22 32.1696941112 +45 23 01.932649116   15.7       ~ 78 0
35 Z 319-21 AG? 15 41 47.85 +67 15 15.3 15.71 15.22 14.81 14.44   ~ 93 0
36 Z 251-4 AG? 16 16 17.9000468088 +47 02 43.128874644   14.9       ~ 151 0
37 NGC 6946 H2G 20 34 52.332 +60 09 13.24   10.5       ~ 2661 2
38 NGC 6964 AG? 20 47 24.3022751472 +00 18 02.971919412 14.51 14.00 12.99     ~ 93 1
39 Z 343-3 AG? 21 56 24.148 +73 15 39.33   15.2       ~ 102 0
40 Z 514-45 GiG 22 30 33.98 +33 49 10.8   15.5       ~ 73 0
41 Z 533-8 GiG 23 29 58.540 +40 59 31.98   15.7       ~ 110 0
42 Z 476-106 GiP 23 40 39.86 +26 14 11.1   14.5       ~ 146 0

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