Table 6
Slopes and zero-points of the abundance gradients as a function of the Galactocentric distance and of the pulsation period.
| Abundance | Slopea | Zero-point | σ | N | Slopea | Slopea | Slopea | Slopea | ||||||
| ratio | [dex] | [dex] | (TS) | (LEM) | (LII) | (LIII) | ||||||||
|
|
||||||||||||||
| as a function of RG | ||||||||||||||
|
|
||||||||||||||
| [Y/H] | −0.053± 0.003 | 0.43± 0.03 | 0.14 | 429 | −0.033± 0.007 | −0.062± 0.012 | −0.044± 0.004 | −0.061± 0.003 | ||||||
| [La/H] | −0.020± 0.003 | 0.13± 0.03 | 0.14 | 424 | 0.002± 0.005 | −0.045± 0.012 | −0.019± 0.005 | −0.031± 0.004 | ||||||
| [Ce/H] | −0.024± 0.003 | 0.20± 0.03 | 0.14 | 421 | 0.008± 0.007 | −0.043± 0.012 | −0.021± 0.004 | −0.034± 0.003 | ||||||
| [Nd/H] | −0.025± 0.003 | 0.24± 0.03 | 0.13 | 430 | 0.006± 0.006 | −0.046± 0.013 | −0.006± 0.004 | −0.037± 0.003 | ||||||
| [Eu/H] | −0.030± 0.004 | 0.28± 0.03 | 0.16 | 420 | −0.013± 0.005 | −0.066± 0.013 | −0.021± 0.004 | −0.042± 0.005 | ||||||
| [La/Fe] | 0.035± 0.003 | −0.40± 0.03 | 0.13 | 425 | 0.057± 0.006 | 0.011± 0.011 | 0.043± 0.004 | 0.029± 0.003 | ||||||
| [Ce/Fe] | 0.027± 0.003 | −0.31± 0.02 | 0.12 | 419 | 0.063± 0.008 | 0.009± 0.012 | 0.033± 0.004 | 0.027± 0.002 | ||||||
| [Nd/Fe] | 0.027± 0.002 | −0.26± 0.02 | 0.10 | 427 | 0.057± 0.006 | −0.023± 0.011 | 0.045± 0.004 | 0.023± 0.002 | ||||||
| [Eu/Fe] | 0.025± 0.003 | −0.26± 0.03 | 0.14 | 420 | 0.043± 0.006 | −0.007± 0.010 | 0.030± 0.003 | 0.015± 0.004 | ||||||
|
|
||||||||||||||
| as a function of log P | ||||||||||||||
|
|
||||||||||||||
| [Y/H] | 0.20± 0.03 | −0.20± 0.03 | 0.17 | 430 | 0.28± 0.06 | 0.27± 0.07 | 0.12± 0.03 | 0.13± 0.03 | ||||||
| [La/H] | 0.10± 0.02 | −0.13± 0.02 | 0.14 | 424 | 0.06± 0.04 | 0.16± 0.07 | 0.04± 0.03 | 0.11± 0.03 | ||||||
| [Ce/H] | 0.06± 0.02 | −0.07± 0.02 | 0.13 | 417 | −0.10± 0.07 | 0.10± 0.07 | 0.00± 0.03 | 0.04± 0.03 | ||||||
| [Nd/H] | 0.10± 0.02 | −0.07± 0.02 | 0.14 | 430 | −0.03± 0.05 | 0.13± 0.07 | 0.04± 0.03 | 0.12± 0.02 | ||||||
| [Eu/H] | 0.15± 0.03 | −0.11± 0.03 | 0.17 | 418 | 0.08± 0.04 | 0.26± 0.08 | 0.09± 0.03 | 0.15± 0.04 | ||||||
| [Ce/Fe] | −0.09± 0.02 | 0.02± 0.02 | 0.13 | 423 | −0.55± 0.10 | −0.04± 0.07 | −0.08± 0.03 | −0.09± 0.02 | ||||||
Notes. Columns from 2 to 5 shows the results for all the different samples fitted together. We also list the standard deviation (σ) of the residuals and the number of data points (N) used in the fit. The slopes using only the stars of our sample (TS: this study) and of previous studies (LEM, LII, and LIII) are shown for comparison.
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