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Table 3:

Current values for the oxygen abundance gradient from the models for the galaxies in study.
Milky Way
  MW-A1 MW-A2 MW-B
Disk range $\Delta$(O/H)/$\Delta R$ $\Delta$(O/H)/$\Delta R$ $\Delta$(O/H)/$\Delta R$
kpc dex/kpc dex/kpc  

4 to 14 		-0.059 -0.025 -0.029
4 to 12 -0.033 -0.019 -0.024
4 to 10 -0.024 -0.017 -0.026
6 to 12 -0.073 -0.027 -0.029

M 31
  M 31-A1 M 31-A2 M 31-B (k = 1.25)
Disk range $\Delta$(O/H)/$\Delta R$ $\Delta$(O/H)/$\Delta R$ $\Delta$(O/H)/$\Delta R$
dex/kpc dex/kpc dex/kpc dex/kpc
4 to 20 -0.016 -0.018 ­0.020 (-0.031)
4 to 18 -0.013 -0.015 -0.018 (-0.023)
4 to 16 -0.011 -0.014 -0.019 (-0.017)
4 to 14 -0.011 -0.013 -0.021 (-0.019)
6 to 16 -0.010 -0.012 -0.017 (-0.015)
M 33
  M 33-A05 M 33-A01 M 33-B
Disk range $\Delta$(O/H)/$\Delta R$ $\Delta$(O/H)/$\Delta R$ $\Delta$(O/H)/$\Delta R$
kpc dex/kpc dex/kpc dex/kpc
2 to 6 -0.015 -0.015 -0.063
Observed Values
Galaxy $\Delta$(O/H)/$\Delta R$ References*  
  dex/kpc    
MW -0.040 to -0.060 1, 2  
M 31 -0.013 to -0.027 3  
M 33 -0.012 to -0.054 4, 5, 6  

References. (1) Deharveng et al. (2000); (2) Rudolph et al. (2006); (3) Trundle et al. (2002); (4) Crockett et al. (2006); (5) Magrini et al. (2007); (6) Rosolowsky et al. (2008).


Source LaTeX | All tables | In the text

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