2018A&A...609A.119S

Query : 2018A&A...609A.119S

2018A&A...609A.119S - Astronomy and Astrophysics, volume 609A119-119 (2018/1-1)

The shape of oxygen abundance profiles explored with MUSE: evidence for widespread deviations from single gradients.

SANCHEZ-MENGUIANO L., SANCHEZ S.F., PEREZ I., RUIZ-LARA T., GALBANY L., ANDERSON J.P., KRUHLER T., KUNCARAYAKTI H. and LYMAN J.D.

Abstract (from CDS):

We characterised the oxygen abundance radial distribution of a sample of 102 spiral galaxies observed with VLT/MUSE using the O3N2 calibrator. The high spatial resolution of the data allowed us to detect 14345 HII regions with the same image quality as with photometric data, avoiding any dilution effect. We developed a new methodology to automatically fit the abundance radial profiles, finding that 55 galaxies of the sample exhibit a single negative gradient. The remaining 47 galaxies also display, as well as this negative trend, either an inner drop in the abundances (21), an outer flattening (10), or both (16), which suggests that these features are a common property of disc galaxies. The presence and depth of the inner drop depends on the stellar mass of the galaxies with the most massive systems presenting the deepest abundance drops, while there is no such dependence in the case of the outer flattening. We find that the inner drop appears always around 0.5re, while the position of the outer flattening varies over a wide range of galactocentric distances. Regarding the main negative gradient, we find a characteristic slope in the sample of αO/H=-0.10±0.03dex/re. This slope is independent of the presence of bars and the density of the environment. However, when inner drops or outer flattenings are detected, slightly steeper gradients are observed. This suggests that radial motions might play an important role in shaping the abundance profiles. We define a new normalisation scale ("the abundance scale length", rO/H) for the radial profiles based on the characteristic abundance gradient, with which all the galaxies show a similar position for the inner drop (∼0.5 rO/H) and the outer flattening (∼1.5 rO/H). Finally, we find no significant dependence of the dispersion around the negative gradient with any property of the galaxies, with values compatible with the uncertainties associated with the derivation of the abundances.

Abstract Copyright: © ESO, 2018

Journal keyword(s): galaxies: abundances - galaxies: evolution - galaxies: ISM - galaxies: spiral - techniques: imaging spectroscopy - techniques: spectroscopic

Simbad objects: 106

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Number of rows : 106
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-02-01-014 EmG 00 04 01.5272578392 -11 10 27.406670124   14   14.24   ~ 26 1
2 Z 383-19 EmG 00 27 49.691 -01 11 59.49   14.7 14.63 16.914 14.3 ~ 93 0
3 LEDA 1684149 G 00 35 10.4757985104 +23 15 17.874378252           ~ 8 0
4 NGC 232 Sy2 00 42 45.814 -23 33 40.69   14.43   12.78   ~ 167 0
5 NGC 300 GiG 00 54 53.4465638304 -37 41 03.168402396 8.83 8.69 8.13 7.46   ~ 1614 2
6 LEDA 1172943 EmG 01 15 57.693 +00 41 35.99           ~ 20 0
7 MCG-01-04-025 AG? 01 18 42.6382 -07 26 58.619   14.5       ~ 12 0
8 2MASX J01460987-6727579 G 01 46 09.8544725664 -67 27 57.615789672           ~ 4 0
9 LEDA 923603 G 01 50 41.2599709464 -14 31 03.138987072   15.59   14.75   ~ 12 0
10 Z 386-46 GiC 01 51 48.5114573904 +00 15 49.853514024   15.7       ~ 38 0
11 Z 412-46 Sy2 01 55 22.0278511032 +06 36 42.434344476   14.449 13.619 13.090 12.381 ~ 157 0
12 MCG+00-06-003 G 01 56 48.5045064168 -00 12 45.198891396   16       ~ 38 0
13 MCG-04-06-009 EmG 02 09 18.0754592808 -23 24 54.256914324   13.22   12.16 12.6 ~ 81 1
14 MCG-06-06-002 EmG 02 19 37.6112611512 -37 49 07.676002920   13.65   12.45 13.0 ~ 37 0
15 Z 388-47 LSB 02 32 39.2970234600 +00 37 02.300255868   14.4       ~ 63 0
16 MCG-02-07-033 EmG 02 34 24.5345738640 -10 50 37.653034488   13.9   12.94 13.5 ~ 71 0
17 MCG-03-07-040 G 02 36 03.8 -17 15 50   14.49   13.96   ~ 14 0
18 NGC 1080 EmG 02 45 09.9533896152 -04 42 38.720917008   14.5       ~ 28 0
19 NGC 1309 GiG 03 22 06.5548977432 -15 23 59.791692912   12.08   12.5 11.7 ~ 246 1
20 APMUKS (BJ) B033105.19-262232.9 G 03 33 12.55 -26 12 30.1           ~ 3 0
21 IC 344 LSB 03 41 29.595 -04 39 56.82   15   14.18   ~ 34 0
22 MCG-03-10-052 G 03 54 24.6660215904 -19 11 25.115304912   14.86   13.34   ~ 37 0
23 NGC 1516A Sy2 04 08 07.4443619304 -08 49 45.078283452   15   13.95   ~ 23 2
24 NGC 1566 Sy1 04 20 00.3968473248 -54 56 16.624708764 10.29 10.19 9.73 9.21 10.1 ~ 1051 2
25 NGC 1578 AG? 04 23 46.6438316256 -51 35 58.376259384   13.83   12.48   ~ 29 0
26 NGC 1591 Sy1 04 29 30.5379132408 -26 42 47.240666424   13.77   12.62   ~ 65 0
27 NGC 1590 GiG 04 31 10.2576657432 +07 37 51.019626504   14.6       ~ 59 0
28 2MASX J04551669-1959559 LSB 04 55 16.694 -19 59 55.91           ~ 5 0
29 NGC 1762 GiC 05 03 37.0299964296 +01 34 24.159858564   13.5       ~ 58 0
30 NGC 1954 GiG 05 32 48.3422877984 -14 03 45.629552808   12.5   11.65 12.2 ~ 71 0
31 MCG-04-14-034 EmG 05 48 48.5349672888 -24 22 44.770344096   14.56   13.58   ~ 25 0
32 IC 2160 AG? 05 55 28.5876558144 -76 55 13.224636552   13.76   12.70 13.3 ~ 55 0
33 2MASX J06380745-7543288 G 06 38 07.3377771816 -75 43 28.966569888           ~ 4 0
34 MCG+02-18-006 G 07 01 36.762 +14 08 06.89   15.5       ~ 37 0
35 NGC 2370 GiG 07 25 01.6494155952 +23 46 59.402786196   14.3       ~ 33 0
36 LEDA 340055 Sy2 07 35 35.54 -62 46 10.0   15.38   14.22   ~ 15 0
37 NGC 2466 EmG 07 45 15.9905179248 -71 24 37.620749808   13.42   12.44 13.0 ~ 42 0
38 LEDA 4017225 G 09 02 02.17592 +10 17 59.7746           ~ 6 0
39 LEDA 1054462 G 09 09 24.543 -04 43 02.63           ~ 5 0
40 2MASX J09151727-2536001 G 09 15 17.27040 -25 36 00.1440           ~ 5 0
41 NGC 2906 AGN 09 32 06.2228278920 +08 26 30.486567516   13.1       ~ 189 0
42 NGC 2930 EmG 09 37 32.7585308016 +23 12 12.028906044   14.7       ~ 41 0
43 Z 63-98 LIN 09 53 49.2311143416 +09 11 37.582567836   15.6       ~ 40 0
44 IC 577 GiP 09 56 03.9721538160 +10 29 55.877425656   14.4       ~ 49 0
45 Z 36-16 AG? 10 00 31.9920033168 +04 24 25.671558420   14.2       ~ 74 0
46 NGC 3120 EmG 10 05 23.0159887440 -34 13 11.894842236   13.53   12.40 12.8 ~ 70 0
47 LEDA 3081694 Sy2 10 06 48.6584510592 -07 41 12.958907424   16.16   15.12   ~ 10 0
48 NGC 3244 EmG 10 25 28.8159211464 -39 49 39.254531520 12.89 13.09 12.28 11.83 12.6 ~ 60 1
49 MCG+04-25-025 G 10 29 27.4898739720 +22 00 28.506482028   15.6       ~ 30 0
50 NGC 3278 EmG 10 31 35.3815519416 -39 57 16.780966632   13.02   11.78   ~ 68 1
51 NGC 3318 Sy2 10 37 15.5052550728 -41 37 38.912719512   12.71 11.97 11.77 12.4 ~ 107 0
52 NGC 3363 rG 10 45 09.4503151608 +22 04 42.518847756   14.7       ~ 51 0
53 NGC 3389 GiG 10 48 27.9084984144 +12 31 59.659616244   12.0       ~ 244 2
54 NGC 3447 GiP 10 53 23.9671116744 +16 46 20.741661336   14.3       ~ 115 0
55 NGC 3451 H2G 10 54 20.859 +27 14 22.76   13.5       ~ 132 0
56 NGC 3464 GiG 10 54 40.1376198816 -21 03 59.251207824   13.23   12.01 12.4 ~ 109 0
57 LEDA 1285465 G 11 00 09.8423061480 +05 33 48.525561036           ~ 5 0
58 NGC 3512 GiP 11 04 02.9540255952 +28 02 12.394037112   13.7 12.87     ~ 168 0
59 Z 126-30 LIN 11 19 16.6187635416 +20 48 48.768586236   13.8       ~ 58 0
60 MCG-04-27-009 G 11 23 41.3 -22 16 16           ~ 13 0
61 NGC 3905 Sy2 11 49 04.9150829016 -09 43 47.835584652   13   12.55   ~ 66 0
62 Z 98-131 GiC 12 17 17.238 +16 22 17.23   15.2       ~ 34 0
63 MCG-04-29-021 LIN 12 21 49.0533345816 -24 10 05.955694644   13.45   11.90   ~ 55 0
64 NGC 4451 GiG 12 28 40.558 +09 15 32.13   13.4       ~ 207 0
65 NGC 4487 EmG 12 31 04.4731449720 -08 03 14.548820040   11.7   11.9 11.6 ~ 189 0
66 NGC 4651 LIN 12 43 42.6376070448 +16 23 36.002649300   11.30 10.92 10.42 9.84 ~ 537 0
67 MCG-01-33-034 GiG 12 52 34.7094959058 -09 46 35.724397013   15.0       ~ 73 0
68 NGC 4772 LIN 12 53 29.1636448512 +02 10 06.146331708 12.29 11.96 11.04     ~ 265 1
69 LEDA 1015413 G 12 54 13.0 -07 38 49           ~ 9 0
70 NGC 4806 AG? 12 56 12.3990039936 -29 30 10.005678108   13.44   12.52   ~ 72 0
71 NGC 4900 AGN 13 00 39.1193785512 +02 30 05.154593868   12.8       ~ 267 1
72 NGC 4965 EmG 13 07 09.3504711408 -28 13 41.789696088   12.76   11.96 12.7 ~ 79 1
73 Z 44-35 GiG 13 13 49.239 +06 57 45.72   15.4       ~ 34 0
74 NGC 5339 GiG 13 54 00.2660800368 -07 55 50.387342088   16.5       ~ 93 0
75 ESO 510-34 Sy2 13 59 41.9912609160 -25 22 42.759599880   15.58   13.98 13.77 ~ 17 0
76 M 101 GiP 14 03 12.583 +54 20 55.50   8.46 7.86 7.76   ~ 3138 2
77 NGC 5584 EmG 14 22 23.811 -00 23 14.82   12.80   12.0 11.8 ~ 298 0
78 Z 76-51 GiG 14 47 42.4918297512 +09 39 34.044106428   15.0       ~ 33 2
79 Z 48-51 GiG 14 53 23.3991971712 +02 57 59.520489552   15.5       ~ 21 0
80 Z 136-15 G 15 33 48.9126088632 +21 08 10.311382752   14.9       ~ 29 0
81 Z 23-5 G 15 57 30.3 +01 06 40   15.5       ~ 14 0
82 IC 1158 AG? 16 01 34.072 +01 42 28.19   13.2   13.3 12.9 ~ 98 0
83 Z 83-27 GiG 17 50 13.6616281080 +14 17 15.037914660   14.4       ~ 45 0
84 MCG+02-47-002 LSB 18 22 53.269 +12 25 45.75   15       ~ 39 0
85 NGC 6708 EmG 18 55 35.654 -53 43 24.20   13.36 12.93 12.40   ~ 41 0
86 NGC 6754 AG? 19 11 25.7628412536 -50 38 31.684626168   12.86       ~ 99 0
87 ESO 184-82 AG? 19 35 04.416 -52 50 38.04   15.17   14.26   ~ 113 2
88 2MASS J19593264-5659334 G 19 59 32.6313009792 -56 59 33.384782256           ~ 3 0
89 MCG-05-48-003 Sy2 20 21 51.5561670184 -31 17 23.020333239   14.67   13.30   ~ 36 0
90 NGC 6962 Sy2 20 47 19.0650209136 +00 19 14.912136624 13.38 13.00 12.14     ~ 151 1
91 ESO 235-37 EmG 21 01 59.619 -48 16 27.86   15.56   14.35   ~ 13 0
92 ESO 287-40 GiG 21 37 28.1844944568 -47 02 08.827431612   14.29   13.01   ~ 41 0
93 NGC 7119A BiC 21 46 15.20 -46 31 04.2   13.54   12.35   ~ 16 1
94 Z 376-34 EmG 21 49 07.2983653296 +00 26 50.425681848   14.27   14.3 14.3 ~ 75 1
95 ESO 75-49 Sy2 22 02 01.8645416544 -70 02 29.835081816   15.07   14.28   ~ 15 0
96 IC 5179 Sy1 22 16 09.1191653256 -36 50 37.117603752   12.29 11.89 11.38   ~ 214 1
97 MCG-03-57-017 Sy1 22 31 25.474 -19 02 04.27   14.27 13.73 12.90   ~ 123 1
98 MCG-01-57-021 AG? 22 40 15.1292913744 -02 25 26.612204628   14.0       ~ 62 0
99 Z 452-45 GiG 22 42 10.5285785904 +19 59 48.887242548   15.3       ~ 60 0
100 NGC 7469 Sy1 23 03 15.6 +08 52 26 12.60 13.00 12.34     ~ 2253 3
101 NGC 7580 H2G 23 17 36.3904811568 +14 00 04.228227216   14.8       ~ 72 0
102 LEDA 131788 G 23 32 07.478 -41 16 09.71   16.19       ~ 10 0
103 LEDA 128348 EmG 23 33 12.231 -60 34 20.17   14.40       ~ 23 0
104 Z 476-117 GiG 23 42 38.4110007048 +27 05 30.558074208   15.0       ~ 44 0
105 NGC 7742 GiP 23 44 15.7534099368 +10 46 01.533226872   12.5       ~ 226 0
106 2dFGRS TGS354Z135 EmG 23 45 14.810 -29 47 00.97   16.339   15.430   ~ 10 0

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