The chemical abundances we obtained

The chemical abundances we obtained are summarized in Table 3. Table 3 demonstrates that there is good agreement
between hot and cool dwarf stars, as far as the abundances of common elements are concerned, with the mean abundances of the two groups in agreement within 0.10–0.15 dex in the worst case.
Based on this good agreement, we can conclude that HD 162679 and HD 162817 are normal A/B objects, unaffected
by deviation of the superficial abundances, which affects peculiar (Ap/Bp) stars. This results agrees with Folsom et al. (2007),where authors find a normal solar chemical composition, within the errors, for HD 162817. On the other hand, Folsom et al.(2007) show that the other NGC 6475 A/B stars in their sample have peculiar composition and present a huge variation in
the solar scaled abundances of many elements (from C up to
Ba) with respect the mean chemical content of the cluster as
traced by cool dwarf or giant stars. This variation can reach
the value of ±2.0 dex, depending on the element. Our variation,
if present, is lower than 0.10–0.15 dex for all the elements
we studied. Because of this we confirm that HD 162679 and
HD 162817 do not present surface-abundance peculiarities of
Ap/Bp stars. This result can be easily explained by the high
rotation of HD 162679 and HD 162817 (vesini > 35 km s−1),
which, according to Hempel & Holweger (2003), mixes the stellar
envelope inhibiting diffusion processes that causes chemical
anomalies

ผลลัพธ์ (ไทย) 1:

The chemical abundances we obtained are summarized in Table 3. Table 3 demonstrates that there is good agreementbetween hot and cool dwarf stars, as far as the abundances of common elements are concerned, with the mean abundances of the two groups in agreement within 0.10–0.15 dex in the worst case.Based on this good agreement, we can conclude that HD 162679 and HD 162817 are normal A/B objects, unaffectedby deviation of the superficial abundances, which affects peculiar (Ap/Bp) stars. This results agrees with Folsom et al. (2007),where authors find a normal solar chemical composition, within the errors, for HD 162817. On the other hand, Folsom et al.(2007) show that the other NGC 6475 A/B stars in their sample have peculiar composition and present a huge variation inthe solar scaled abundances of many elements (from C up toBa) with respect the mean chemical content of the cluster astraced by cool dwarf or giant stars. This variation can reachthe value of ±2.0 dex, depending on the element. Our variation,if present, is lower than 0.10–0.15 dex for all the elementswe studied. Because of this we confirm that HD 162679 andHD 162817 do not present surface-abundance peculiarities ofAp/Bp stars. This result can be easily explained by the highrotation of HD 162679 and HD 162817 (vesini > 35 km s−1),which, according to Hempel & Holweger (2003), mixes the stellarenvelope inhibiting diffusion processes that causes chemicalความผิดปกติ