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Figure 1:
[X/Fe] vs.
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Figure 2:
Distributions of planet-host stars and non-planet-host stars as functions of
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Figure 3:
[X/H] distributions for Ti, V and Co for the two subsamples of planet host (solid line) and
comparison sample (dotted lines) stars with the same
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Figure 4: Comparison of the abundances of nine refractory elements calculated with EW values measured from spectra taken with different instruments. Along the x-asis are results from FEROS spectra, while along the y-axis we represent abundance values for the same objects, calculated using other spectra. UVES, CORALIE and SARG results are respectively represented with rhombi (HD 16141, HD 27442), triangles (HD 83443, HD 92788, HD 106252, HD 114386) and asterisks (HD 114783, HD 147513). |
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Figure 5: [X/H] vs. [Fe/H] for Si, Ca, Ti ( left), for Sc, Mn and V ( centre), for Cr, Co and Ni ( right). Triangles and asterisks represent stars with planetary-mass companion and "single'' field stars, respectively. The intersection of the dotted lines indicates solar value. |
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Figure 6: [X/H] distribution for each element. The planet-host stars and the comparison sample are represented with solid and dotted lines, respectively. |
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Figure 7:
[X/Fe] vs. [Fe/H](in dex) for ![]() ![]() |
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Figure 8: [X/Fe] vs. [Fe/H] trends using binned average values. The bins are 0.2 dex wide, centred on [Fe/H ] =-0.6, -0.4,-0.2,0,0.2 and 0.4 for both samples. Triangles are planet-hosts while rhombi are stars without a planetary-mass companion. The error bars represent the standard deviation about the mean value. |
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Figure 9: Same as Fig. 6 but for the Na, Mg and Al distributions. |
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Figure 10:
[X/Fe] vs. [Fe/H] (in dex). Results by Beirão et al. (2005) with the addition of abundances from new
comparison
sample spectra. On the left are the plots for Na, Mg and Al, and on the right
the same plots only for
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Figure 11: The same as Fig. 8 but for Na, Mg and Al. |
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