2015MNRAS.451..210C

Query : 2015MNRAS.451..210C

2015MNRAS.451..210C - Mon. Not. R. Astron. Soc., 451, 210-235 (2015/July-3)

Gas-phase metallicity profiles of the Bluedisk galaxies: Is metallicity in a local star formation regulated equilibrium?

CARTON D., BRINCHMANN J., WANG J., BIGIEL F., CORMIER D., VAN DER HULST T., JOZSA G.I.G., SERRA P. and VERHEIJEN M.A.W.

Abstract (from CDS):

As part of the Bluedisk survey, we analyse the radial gas-phase metallicity profiles of 50 late-type galaxies. We compare the metallicity profiles of a sample of Hi-rich galaxies against a control sample of Hi-`normal' galaxies. We find the metallicity gradient of a galaxy to be strongly correlated with its Hi mass fraction (M(H I)/ M_*). We note that some galaxies exhibit a steeper metallicity profile in the outer disc than in the inner disc. These galaxies are found in both the Hi-rich and control samples. This contradicts a previous indication that these outer drops are exclusive to Hi-rich galaxies. These effects are not driven by bars, although we do find some indication that barred galaxies have flatter metallicity profiles. By applying a simple analytical model, we are able to account for the variety of metallicity profiles that the two samples present. The success of this model implies that the metallicity in these isolated galaxies may be in a local equilibrium, regulated by star formation. This insight could provide an explanation of the observed local mass-metallicity relation.

Abstract Copyright: © 2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2015)

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

Simbad objects: 52

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Number of rows : 52
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 74 G 01 36 41.7451236624 +15 47 01.107512304 10.52 10.00 9.46 9.16   ~ 1934 1
2 LEDA 2193832 G 07 27 45.135 +42 10 50.43           ~ 27 0
3 LEDA 79472 G 08 02 40.6546287288 +34 31 17.154857244   15.5       ~ 15 0
4 Z 263-17 LIN 08 13 14.1972041112 +52 27 31.398585084   15.0       ~ 19 0
5 Z 207-46 EmG 08 14 22.070 +39 15 04.52   15.20       ~ 53 0
6 Z 208-6 LIN 08 28 46.7611518408 +40 39 57.194757756   15.5       ~ 22 0
7 Z 263-36 G 08 29 14.8953761472 +55 31 22.697720544   15.2       ~ 33 0
8 Z 208-28 G 08 37 06.5242206936 +41 27 22.795773840   15.1       ~ 16 0
9 IC 2387 G 08 38 33.9798540648 +30 47 55.374259236   14.8       ~ 50 0
10 Z 180-12 GiG 08 49 16.3866339984 +36 07 11.348309244   14.3       ~ 62 0
11 NGC 2668 LIN 08 49 22.5553691136 +36 42 37.216710936   14.9       ~ 48 0
12 Z 208-50 G 08 49 25.5020000808 +41 46 16.554925920   15.6       ~ 15 0
13 Z 238-13 G 09 08 42.6206595312 +44 48 38.343800016   15.2       ~ 43 0
14 MCG+07-19-038 G 09 14 24.7881475488 +40 46 40.514706408   16.5       ~ 16 0
15 Z 264-87 G 09 14 58.3441906104 +51 21 39.790571076   14.6       ~ 34 0
16 MCG+08-17-066 rG 09 16 46.0962241200 +45 48 49.581034380   15.4       ~ 20 0
17 Z 151-53 LSB 09 18 35.1028937688 +32 16 11.980700328   15.6       ~ 29 0
18 Z 238-55 LIN 09 26 09.4344340512 +49 18 36.701981280   15.4       ~ 45 0
19 NGC 2895 G 09 32 25.054 +57 28 58.40   14.7       ~ 35 0
20 NGC 3013 Sy2 09 50 09.3567135600 +33 34 09.623147772   15.6       ~ 31 1
21 Z 239-47 G 09 57 40.8419052624 +45 15 31.369390740   15.44   13.91   ~ 28 0
22 Z 265-50 AGN 09 57 49.0861799184 +51 49 16.240637460   15.10       ~ 33 0
23 NGC 3135 LIN 10 10 54.3824561904 +45 57 01.323279000   14.3       ~ 33 0
24 NGC 3164 G 10 15 11.4225120504 +56 40 19.546734288   14.5       ~ 25 0
25 Z 266-31 LIN 10 15 42.2507325144 +55 40 02.856547380   14.6       ~ 33 0
26 Z 290-20 G 10 16 10.2464079312 +58 25 37.166266344   14.9       ~ 35 0
27 Z 184-20 GiG 10 50 07.2888310920 +36 20 30.654153672   14.4       ~ 34 0
28 Z 185-9 LIN 11 07 59.0181229104 +35 27 47.720062260   14.9       ~ 27 0
29 Z 185-20 G 11 14 15.242 +34 09 14.73   15.4       ~ 17 0
30 Z 268-82 LIN 11 46 57.5506268256 +50 42 07.604491140   14.7       ~ 24 0
31 NGC 3897 LIN 11 48 59.4582741288 +35 00 57.694176612   14.2       ~ 53 0
32 Z 270-29 EmG 12 52 03.5546265360 +51 40 48.095134752   14.3       ~ 35 0
33 Z 294-17 G 13 07 13.5656736288 +58 08 05.938600164   14.8       ~ 34 0
34 Z 245-27 LIN 13 11 31.0034714352 +46 20 30.305148324   15.4       ~ 22 0
35 Z 245-33 GiG 13 12 56.7127920744 +47 27 23.784350256   15.5       ~ 42 0
36 Z 189-47 GiC 13 16 03.6130972632 +35 02 36.712030956   14.6       ~ 42 0
37 Z 218-22 G 13 33 29.8984030272 +40 31 46.745406012   15.6       ~ 35 0
38 Z 218-38 EmG 13 41 00.2479988112 +42 25 53.131775664   15.1       ~ 42 0
39 M 101 GiP 14 03 12.583 +54 20 55.50   8.46 7.86 7.76   ~ 3138 2
40 NGC 5497 G 14 10 31.6452492048 +38 53 36.672374904   15.1       ~ 25 0
41 Z 220-40 G 14 37 59.9430261192 +40 06 22.302975456   14.8       ~ 21 0
42 IC 1074 LIN 14 51 57.3320101344 +51 15 53.550547488   15.2       ~ 26 0
43 Z 195-14 G 16 06 06.9721760976 +35 58 53.617034424   15.7       ~ 26 0
44 Z 195-15 LIN 16 07 34.2122385720 +36 29 02.477264100   15.7       ~ 30 0
45 Z 167-65 LIN 16 17 31.7994421872 +31 11 40.174939032   15.1       ~ 28 0
46 NGC 6145 LIN 16 25 02.3597640480 +40 56 47.907943008   15.1       ~ 34 0
47 Z 224-95 GiC 16 43 10.4462256240 +42 11 34.083846492   15.3       ~ 45 0
48 Z 224-102 GiG 16 47 14.78903 +40 14 42.3079   15.0       ~ 44 0
49 Z 170-3 G 17 14 36.0407410080 +30 44 00.758755320   15.5       ~ 33 0
50 Z 299-70 Sy1 17 16 37.4468207784 +58 24 42.794182800   15.7       ~ 14 0
51 Z 300-28 LIN 17 26 13.7396617320 +62 08 57.989556420   15.5       ~ 49 0
52 Z 300-38 Sy2 17 28 37.5314319192 +57 08 42.149749524   17.19 16.57     ~ 29 0

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