2025A&A...697A..87G

Query : 2025A&A...697A..87G

2025A&A...697A..87G - Astronomy and Astrophysics, volume 697A87 (2025/5-1)

The H2 angular momentum - mass relation of local disc galaxies.

GEESINK N.N., MANCERA PINA P.E., LAGOS C.D.P. and KRIEK M.

Abstract (from CDS):

We present an analysis of the molecular specific angular momentum-mass (jH2 - MH2) relation using a sample of 51 nearby disc galaxies from the PHANGS-ALMA survey with deep high-resolution molecular gas rotation curves and surface density profiles. For the very first time, using a statistical sample, we report the discovery of a well-defined jH2 - MH2 relation. We quantify the scaling law by fitting a power law with a Bayesian framework, finding jH2 ∝ MH20.53. This slope closely resembles the well-known stellar j*-M* (Fall) relation, highlighting the dynamical connection between molecular gas and stars. We show that the jH2 - MH2 relation cannot be fully explained by analytic models of disc stability, but instead is well recovered with more complex physics as implemented in the SHARK semi-analytical model. These findings demonstrate the power of our novel jH2 - MH2 relation in testing galaxy evolution theories and in setting new constraints for models and simulations that reproduce a realistic interstellar medium. Additionally, our findings provide a critical benchmark for upcoming high-redshift studies of molecular gas kinematics, offering a local baseline to study the evolution of cold gas dynamics across cosmic time.

Abstract Copyright: © The Authors 2025

Journal keyword(s): galaxies: evolution - galaxies: formation - galaxies: fundamental parameters - galaxies: ISM - galaxies: kinematics and dynamics - galaxies: spiral

Simbad objects: 66

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Number of rows : 66
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 NGC 253 SyG 00 47 33.134 -25 17 19.68   8.03   6.94 8.1 ~ 3588 2
2 NGC 300 GiG 00 54 53.4465638304 -37 41 03.168402396 8.83 8.69 8.13 7.46   ~ 1614 2
3 M 74 G 01 36 41.7451236624 +15 47 01.107512304 10.52 10.00 9.46 9.16   ~ 1934 1
4 NGC 685 Sy2 01 47 42.8337567552 -52 45 42.808467960   12.02   11.08 11.9 ~ 130 0
5 NGC 1097 LIN 02 46 19.059 -30 16 29.68 10.46 9.97 9.48 8.72 9.8 ~ 1448 3
6 NGC 1087 H2G 02 46 25.1550134904 -00 29 55.457857644   11.5   11.4 11.5 ~ 379 0
7 NGC 1300 Sy2 03 19 41.0462219928 -19 24 40.187565432   11.16 10.42 9.90 10.7 ~ 616 0
8 NGC 1317 GiP 03 22 44.2823209512 -37 06 13.180903956 12.20 11.78 11.02 10.22   ~ 240 1
9 IC 1954 GiG 03 31 31.393 -51 54 17.54   12.14   11.15 11.8 ~ 149 0
10 NGC 1365 Sy1 03 33 36.458 -36 08 26.37 10.48 10.08 9.63 8.79 9.7 ~ 1987 2
11 NGC 1385 EmG 03 37 28.323 -24 30 04.60 11.28 11.50 10.94 10.45 11.7 ~ 318 2
12 NGC 1433 Sy2 03 42 01.4847418992 -47 13 18.929092656   10.84 9.99 9.61 10.2 ~ 447 0
13 NGC 1511 G 03 59 36.98373 -67 38 03.3430   11.97   10.74 11.1 ~ 158 1
14 NGC 1512 GiP 04 03 54.281 -43 20 55.86 11.30 11.43 10.54 10.37   ~ 457 1
15 NGC 1546 EmG 04 14 36.542 -56 03 38.92 12.15 12.31 10.92 10.84 11.2 ~ 133 1
16 NGC 1559 GiG 04 17 35.7508602240 -62 47 01.251567384   11.19 10.45 10.11 10.4 ~ 325 1
17 NGC 1566 Sy1 04 20 00.3968473248 -54 56 16.624708764 10.29 10.19 9.73 9.21 10.1 ~ 1051 2
18 NGC 1809 GiG 05 02 05.008 -69 34 05.82   12.1   11.3 11.4 ~ 69 0
19 NGC 1792 Sy1 05 05 14.4036930408 -37 58 50.064531168   10.68 10.18 9.53 10.4 ~ 261 1
20 NGC 2090 GiG 05 47 01.8557074752 -34 15 01.679264784 12.17 11.70 11.20 10.43 11.0 ~ 206 1
21 NGC 2283 AG? 06 45 52.7901073776 -18 12 37.550287368   12.94   10.72 11.8 ~ 77 0
22 NGC 2566 GiG 08 18 45.608 -25 29 58.27   11.81   10.50 11.2 ~ 102 0
23 NGC 2775 AG? 09 10 20.1334093488 +07 02 16.874157048   11.417 10.481 9.920 8.994 ~ 377 0
24 NGC 2835 EmG 09 17 52.8523921416 -22 21 16.839119700   11.03   10.32 10.9 ~ 285 0
25 NGC 2903 AGN 09 32 10.111 +21 30 02.99 10.44 9.75 9.07 8.68   ~ 1204 3
26 NGC 2997 GiG 09 45 38.7542237472 -31 11 27.345810192   9.97 9.41 8.84 9.9 ~ 454 1
27 NGC 3059 EmG 09 50 08.181 -73 55 19.96   11.56 11.24 10.66 11.5 ~ 113 1
28 NGC 3137 Sy2 10 09 07.478 -29 03 51.48   12.21   10.80 11.9 ~ 83 0
29 M 95 GiP 10 43 57.7313485800 +11 42 13.301191332 10.71 10.51 9.73 9.48   ~ 1238 2
30 NGC 3511 EmG 11 03 23.8201544712 -23 05 12.133861188   11.66   10.53 11.1 ~ 182 0
31 NGC 3507 AGN 11 03 25.3619733360 +18 08 07.607343732   11.4       ~ 211 0
32 NGC 3521 EmG 11 05 48.5680991376 -00 02 09.245076540 10.06 9.83 9.02 10.1 9.6 ~ 879 2
33 NGC 3596 H2G 11 15 06.2081129496 +14 47 13.284196332   12.01 11.49 10.99 10.45 ~ 226 0
34 NGC 3621 Sy2 11 18 16.300 -32 48 45.36 10.10 9.44 9.56 8.07 10.1 ~ 661 3
35 NGC 3626 GiG 11 20 03.8069651160 +18 21 24.543304164   11.2       ~ 282 0
36 M 66 AGN 11 20 15.0 +12 59 29 9.85 9.65 8.92     ~ 1509 4
37 M 99 H2G 12 18 49.625 +14 24 59.36 10.45 10.44 9.87     ~ 1004 2
38 NGC 4293 LIN 12 21 12.891 +18 22 56.64   11.6       ~ 311 2
39 NGC 4298 GiC 12 21 32.7578814360 +14 36 22.048690716   12.04 11.34     ~ 358 1
40 M 61 Sy2 12 21 54.9282582888 +04 28 25.597367184 10.07 10.18 9.65     ~ 1084 1
41 M 100 AGN 12 22 54.9299993592 +15 49 20.296257960 10.04 10.05 9.35     ~ 1963 2
42 NGC 4457 LIN 12 28 59.0252479200 +03 34 14.215556928   11.9       ~ 342 0
43 NGC 4496 GiP 12 31 39.2222392512 +03 56 21.641352828   11.71       ~ 376 0
44 NGC 4535 H2G 12 34 20.3443516704 +08 11 51.908488116   11.1       ~ 679 0
45 NGC 4536 H2G 12 34 27.12887 +02 11 16.3680 11.14 11.16 10.55 17.393   ~ 913 3
46 NGC 4540 GiG 12 34 50.8741239840 +15 33 06.116283900   12.5       ~ 220 1
47 M 91 LIN 12 35 26.4446761320 +14 29 46.760333748   14.63 13.57     ~ 639 0
48 M 90 Sy2 12 36 49.8009839880 +13 09 46.523813040 10.56 10.26 9.54     ~ 953 1
49 NGC 4571 GiC 12 36 56.3722998960 +14 13 02.296534836   13.6       ~ 368 1
50 NGC 4689 H2G 12 47 45.5568088416 +13 45 46.135889100   12.8       ~ 418 0
51 NGC 4781 Sy2 12 54 23.7751070304 -10 32 13.803431280   11.8   11.28 11.7 ~ 167 1
52 M 64 SyG 12 56 43.696 +21 40 57.57   9.36 8.52     ~ 1010 2
53 NGC 4941 Sy2 13 04 13.1036380320 -05 33 05.752803672   13.18 12.23 10.74   ~ 410 0
54 NGC 4951 Sy2 13 05 07.7079609936 -06 29 37.815206856   12.5   11.45 12.1 ~ 106 0
55 NGC 5042 EmG 13 15 31.3408530288 -23 58 56.693694144   12.49   11.21 11.6 ~ 98 0
56 NGC 5068 AG? 13 18 54.807 -21 02 20.76 11.24 10.53 10.01 9.78 10.1 ~ 354 0
57 NGC 5134 EmG 13 25 18.5250908808 -21 08 03.066281880   12.11   10.77 11.3 ~ 127 0
58 NGC 5248 G 13 37 32.0145074088 +08 53 06.496982448   11.4       ~ 554 0
59 NGC 5530 AG? 14 18 27.10 -43 23 14.8   11.78 11.00 10.84 11.4 ~ 110 0
60 NGC 5643 Sy2 14 32 40.778 -44 10 28.60   11.03 13.60 9.92 10.6 ~ 652 1
61 NGC 6300 Sy2 17 16 59.5418094960 -62 49 13.946588832   10.88 13.08 9.44 10.2 ~ 478 1
62 NGC 6744 GiG 19 09 46.1335950504 -63 51 26.897079024   9.28 8.25 8.08 9.6 ~ 303 0
63 IC 5273 EmG 22 59 26.719 -37 42 10.36   11.90 11.45 11.07 11.6 ~ 153 0
64 NGC 7456 Sy2 23 02 10.3552289496 -39 34 09.916618440   12.27   11.45 12.0 ~ 118 0
65 NGC 7496 Sy2 23 09 47.2876854912 -43 25 40.279652796   11.92 13.90 10.95 11.5 ~ 350 1
66 NGC 7793 GiG 23 57 49.7540045856 -32 35 27.701550744 10.26 9.74 9.28 9.06 9.7 ~ 1188 2

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