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Table 2

The adopted abundances log (Nelem/Ntot) and comparison with results from the optical analyses by Ryabchikova et al. (1997, RAW), Nesvacil et al. (2008, NHK), and Cowley et al. (2010, CHGS).

Element γ Equ HD 154708 HD 101412 51 Oph
this work RAW this work NHK this work CHGS this work
He i  −0.52
C i  −4.0  −3.66  −4.7:  −3.8  −3.7
N i  −3.5  −3.49
O i  ≤−3.7
Na i  ≤−6.0  ≤−6.7
Mg i  −4.46  −4.50  −5.8  −5.3  −5.00  −3.46
Al i  −5.1  −4.93  ≤−7.6
Si i  −3.9  −4.42  −5.6  −5.55  −4.92  −5.5
P i  ≤−7.8
Ca i  −5.1  −5.40  −6.4  −6.21
Ti i  ≤−7.7
Cr i  −5.4  −5.43  −6.5  −6.3
Fe i  −4.35  −4.28  −6.1  −5.73  −5.1  −5.07  −4.0 ?
Ni i  −5.8  ≤−7.5  −6.71
Sr ii  −7.1  −7.43  −9.07
Ce ii  −9.2  −9.09
Ce iiia  −5.1  −6.8
 −7.0  −7.2
Dy ii  −8.4

Notes. A colon after the abundance value indicates an uncertain abundance.

(a)

The line at 1584.76 nm gives higher abundances than the other two lines at 1570.9638 nm and 1571.5837 nm. The abundance related to the two latter lines is listed in the subsequent row.

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