2012ApJ...750..167D

Query : 2012ApJ...750..167D

2012ApJ...750..167D - Astrophys. J., 750, 167 (2012/May-2)

Cumulative oxygen abundances of spiral galaxies.

DACK S. and McCALL M.L.

Abstract (from CDS):

Studying the global evolution of spiral galaxies requires determining their overall chemical compositions. However, since spirals tend to possess gradients in their chemical compositions, determining their overall chemical abundances poses a challenge. In this study, the framework for a newly proposed method for determining the overall oxygen abundance of a disk is established. By separately integrating the absolute amounts of hydrogen and oxygen out to large radii, the cumulative oxygen abundance is shown to approach an asymptotic value. In this manner, a reliable account of the overall chemical state of a disk is revealed.

Abstract Copyright: ∼

Journal keyword(s): galaxies: abundances - galaxies: evolution - galaxies: spiral - H II regions

Simbad objects: 24

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Number of rows : 24
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 12646 1
2 NGC 300 GiG 00 54 53.4465638304 -37 41 03.168402396 8.83 8.69 8.13 7.46   ~ 1503 2
3 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 5838 1
4 M 74 G 01 36 41.7451236624 +15 47 01.107512304 10.52 10.00 9.46 9.16   ~ 1735 1
5 NGC 927 G 02 26 37.2835891560 +12 09 18.739894248   14.5       ~ 50 0
6 NGC 925 H2G 02 27 16.913 +33 34 43.97   10.69 10.12 9.55   ~ 783 1
7 NGC 1097 LIN 02 46 19.059 -30 16 29.68 10.46 9.97 9.48 8.72 9.8 ~ 1342 3
8 NGC 1232 EmG 03 09 45.514 -20 34 45.48   10.67 9.87 9.53 10.2 ~ 289 0
9 NGC 1365 Sy1 03 33 36.458 -36 08 26.37 10.48 10.08 9.63 8.79 9.7 ~ 1802 2
10 NGC 2403 AGN 07 36 51.3381434280 +65 36 09.650825640 9.31 8.84 8.38 8.19   ~ 1789 1
11 NGC 2905 H2G 09 32 10.111 +21 30 02.99 10.44 9.75 9.07 8.68   ~ 1116 3
12 Mrk 116 PaG 09 34 02.1 +55 14 25           ~ 1106 1
13 M 81 Sy2 09 55 33.1726556496 +69 03 55.062505368   7.89 6.94     ~ 4450 3
14 NGC 3180 GiG 10 18 16.985 +41 25 27.77   10.4       ~ 735 0
15 NGC 3198 EmG 10 19 54.990 +45 32 58.88 10.83 10.87 10.33     ~ 905 1
16 M 106 Sy2 12 18 57.620 +47 18 13.39   9.14 8.41 8.11   ~ 2364 3
17 NGC 4559 H2G 12 35 57.6402869976 +27 57 35.859278160   10.46 10.01     ~ 629 1
18 M 51 Sy2 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 4330 4
19 M 83 SBG 13 37 00.91920 -29 51 56.7400 8.85 8.11 7.52 7.21   ~ 2572 2
20 NGC 5263 GiC 13 39 55.635 +28 24 02.08   14.0       ~ 45 0
21 M 101 GiP 14 03 12.583 +54 20 55.50   8.46 7.86 7.76   ~ 2914 2
22 NGC 6496 GlC 17 59 03.68 -44 15 57.4   9.96       ~ 225 0
23 NGC 6946 H2G 20 34 52.332 +60 09 13.24   10.5       ~ 2529 2
24 NGC 7793 GiG 23 57 49.7540045856 -32 35 27.701550744 10.26 9.74 9.28 9.06 9.7 ~ 1107 2

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