2023A&A...676A..57P

Query : 2023A&A...676A..57P

2023A&A...676A..57P - Astronomy and Astrophysics, volume 676A57 (2023/8-1)

Searching for Milky Way twins: Radial abundance distribution as a strict criterion.

PILYUGIN L.S., TAUTVAISIENE G. and LARA-LOPEZ M.A.

Abstract (from CDS):

We search for Milky Way-like galaxies among a sample of approximately 500 galaxies. The characteristics we considered of the candidate galaxies are the following: stellar mass M⋆, optical radius R25, rotation velocity Vrot, central oxygen abundance (O/H)0, and abundance at the optical radius (O/H)R25. If the values of R25 and M⋆ of the galaxy were close to that of the Milky Way, then the galaxy was referred to as a structural Milky Way analogue (sMWA). The oxygen abundance at a given radius of a galaxy is defined by the evolution of that region (astration level, that is, the fraction of gas converted into stars, as well as gas exchange with the surroundings), and we then assumed that the similarity of (O/H)0 and (O/H)R25 in two galaxies suggests a similarity in their (chemical) evolution. If the values of (O/H)0 and (O/H)R25 in the galaxy were close to that of the Milky Way, then the galaxy was referred to as an evolutionary Milky Way analogue (eMWA). If the galaxy was simultaneously an eMWA and sMWA, then the galaxy was considered a Milky Way twin. We find that the position of the Milky Way on the (O/H)0-(O/H)R25 diagram shows a large deviation from the general trend in the sense that the (O/H)R25 in the Milky Way is appreciably lower than in other galaxies of similar (O/H)0. This feature of the Milky Way evidences that its (chemical) evolution is not typical. We identify four galaxies (NGC 3521, NGC 4651, NGC 2903, and MaNGA galaxy M-8341-09101) that are simultaneously sMWA and eMWA and can therefore be considered as Milky Way twins. In previous studies, Milky Way-like galaxies were selected using structural and morphological characteristics, that is, sMWAs were selected. We find that the abundances at the centre and at the optical radius (evolutionary characteristics) provide a stricter criterion for selecting real Milky Way twins.

Abstract Copyright: © The Authors 2023

Journal keyword(s): galaxies: spiral - galaxies: abundances - ISM: abundances

Simbad objects: 69

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Number of rows : 69
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 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
2 NGC 253 SyG 00 47 33.134 -25 17 19.68   8.03   6.94 8.1 ~ 3588 2
3 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
4 NGC 300 GiG 00 54 53.4465638304 -37 41 03.168402396 8.83 8.69 8.13 7.46   ~ 1614 2
5 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
6 M 74 G 01 36 41.7451236624 +15 47 01.107512304 10.52 10.00 9.46 9.16   ~ 1934 1
7 NGC 753 GiG 01 57 42.2040241440 +35 54 57.729210264   12.6   11.59   ~ 207 1
8 NGC 925 H2G 02 27 16.913 +33 34 43.97   10.69 10.12 9.55   ~ 818 1
9 M 77 Sy2 02 42 40.7091669408 -00 00 47.859690204 9.70 9.61 8.87 10.1 9.9 ~ 4897 2
10 NGC 1058 Sy2 02 43 30.0264850248 +37 20 28.782851784   12.29 11.75 10.85   ~ 483 0
11 NGC 1073 EmG 02 43 40.598 +01 22 33.13   11.3   11.3 11.8 ~ 335 0
12 NGC 1097 LIN 02 46 19.059 -30 16 29.68 10.46 9.97 9.48 8.72 9.8 ~ 1448 3
13 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
14 NGC 1232 EmG 03 09 45.514 -20 34 45.48   10.67 9.87 9.53 10.2 ~ 296 0
15 NGC 1313 AG? 03 18 16.046 -66 29 53.74   10.06 10.0 9.40 10.4 ~ 723 2
16 NGC 1365 Sy1 03 33 36.458 -36 08 26.37 10.48 10.08 9.63 8.79 9.7 ~ 1987 2
17 IC 342 AGN 03 46 48.514 +68 05 45.98   10.5       ~ 1579 1
18 NGC 1512 GiP 04 03 54.281 -43 20 55.86 11.30 11.43 10.54 10.37   ~ 457 1
19 NGC 1598 GiG 04 28 33.6909865848 -47 46 57.121275252   13.91   12.81   ~ 52 0
20 NGC 1672 SyG 04 45 42.552 -59 14 50.68 10.29 10.53 9.68 9.53 10.2 ~ 461 2
21 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
22 NGC 2442 LIN 07 36 23.7700545576 -69 31 50.997856332 11.47 11.15 10.42 9.71 10.4 ~ 243 1
23 NGC 2403 AGN 07 36 51.3381434280 +65 36 09.650825640 9.31 8.84 8.38 8.19   ~ 1887 1
24 NGC 2835 EmG 09 17 52.8523921416 -22 21 16.839119700   11.03   10.32 10.9 ~ 285 0
25 NGC 2805 GiP 09 20 20.3891233968 +64 06 10.716485004   11.9       ~ 226 1
26 NGC 2903 AGN 09 32 10.111 +21 30 02.99 10.44 9.75 9.07 8.68   ~ 1204 3
27 NGC 2997 GiG 09 45 38.7542237472 -31 11 27.345810192   9.97 9.41 8.84 9.9 ~ 454 1
28 M 81 Sy2 09 55 33.1726556496 +69 03 55.062505368   7.89 6.94     ~ 4725 3
29 NGC 3180 GiG 10 18 16.985 +41 25 27.77   10.4       ~ 777 0
30 MGC 6744 * 10 25 14.85 +00 12 54.2   19.26       ~ 2 0
31 NAME Great Attractor SCG 10 32 -46.0           ~ 617 0
32 M 95 GiP 10 43 57.7313485800 +11 42 13.301191332 10.71 10.51 9.73 9.48   ~ 1238 2
33 NGC 3359 EmG 10 46 36.845 +63 13 25.10 10.83 11.03 10.57     ~ 380 1
34 NGC 3521 EmG 11 05 48.5680991376 -00 02 09.245076540 10.06 9.83 9.02 10.1 9.6 ~ 879 2
35 NGC 3621 Sy2 11 18 16.300 -32 48 45.36 10.10 9.44 9.56 8.07 10.1 ~ 661 3
36 M 99 H2G 12 18 49.625 +14 24 59.36 10.45 10.44 9.87     ~ 1004 2
37 M 106 Sy2 12 18 57.620 +47 18 13.39   9.14 8.41 8.11   ~ 2512 4
38 M 61 Sy2 12 21 54.9282582888 +04 28 25.597367184 10.07 10.18 9.65     ~ 1084 1
39 M 100 AGN 12 22 54.9299993592 +15 49 20.296257960 10.04 10.05 9.35     ~ 1963 2
40 NGC 4395 Sy2 12 25 48.8633109888 +33 32 48.700168152 10.84 10.54 10.11 9.98   ~ 1286 1
41 NAME Virgo Cluster ClG 12 30 47.8 +12 23 07           ~ 7107 0
42 M 88 Sy2 12 31 59.1525062448 +14 25 13.148971824   14.33 13.18     ~ 843 1
43 LEDA 2255917 G 12 38 49.3858474344 +44 57 30.778665264           ~ 26 0
44 NGC 4625 SyG 12 41 52.7121819576 +41 16 26.115765780 12.74 12.92 12.35     ~ 383 2
45 NGC 4651 LIN 12 43 42.6376070448 +16 23 36.002649300   11.30 10.92 10.42 9.84 ~ 537 0
46 2MASX J13043906+2837436 GiC 13 04 39.0599116008 +28 37 43.878887328   16.5       ~ 25 0
47 NAME Shapley Supercluster SCG 13 06.0 -33 04           ~ 677 0
48 M 63 LIN 13 15 49.2741893928 +42 01 45.728076108   9.34 8.59 8.35   ~ 1292 2
49 NGC 5068 AG? 13 18 54.807 -21 02 20.76 11.24 10.53 10.01 9.78 10.1 ~ 354 0
50 M 51 Sy2 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 4565 4
51 M 83 SBG 13 37 00.91920 -29 51 56.7400 8.85 8.11 7.52 7.21   ~ 2778 2
52 NGC 5248 G 13 37 32.0145074088 +08 53 06.496982448   11.4       ~ 554 0
53 Z 161-122 LIN 13 41 45.2179419744 +27 00 17.006512140   15.0       ~ 66 0
54 M 101 GiP 14 03 12.583 +54 20 55.50   8.46 7.86 7.76   ~ 3138 2
55 NGC 5921 AG? 15 21 56.561 +05 04 13.94   12.7       ~ 286 0
56 NGC 6384 AG? 17 32 24.2848390896 +07 03 37.531624968   13.2       ~ 313 0
57 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
58 NGC 6744 GiG 19 09 46.1335950504 -63 51 26.897079024   9.28 8.25 8.08 9.6 ~ 303 0
59 SH 2-83 HII 19 24 30.01 +20 47 34.5           ~ 45 1
60 NGC 6946 H2G 20 34 52.332 +60 09 13.24   10.5       ~ 2661 2
61 IC 5201 AG? 22 20 57.437 -46 02 09.06   11.53   10.71 11.7 ~ 129 0
62 NGC 7331 LIN 22 37 04.0506038088 +34 24 56.800076508 10.65 10.35 9.48     ~ 1284 2
63 NGC 7518 GiP 23 13 12.7537321282 +06 19 18.411674658   14.5       ~ 102 0
64 NGC 7529 AG? 23 14 03.208 +08 59 33.11   14.6       ~ 44 0
65 NGC 7591 SyG 23 18 16.2727927344 +06 35 09.108933504   13.8       ~ 285 1
66 IC 5309 GiG 23 19 11.638 +08 06 33.58   15.0       ~ 132 0
67 NGC 7793 GiG 23 57 49.7540045856 -32 35 27.701550744 10.26 9.74 9.28 9.06 9.7 ~ 1188 2
68 NAME Local Group GrG ~ ~           ~ 9325 0
69 NAME Gaia Enceladus-Sausage St* ~ ~           ~ 860 0

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