The chemical composition of the Orion star forming region - I. Homogeneity of O and Si abundances in B-type stars

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Volume 510 (February 2010)

A&A, 510 (2010) A22

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Table 13:

Results from the abundance analysis of HD 35299 (B1.5 V).
HD 35299	$T_{\rm eff}$ = 23 700 K, log g = 4.2 dex			$\xi_{\rm t}$ (Si)=0.5
Line	EW	$\Delta$ EW	$\epsilon_{\rm Si}$	$\Delta\epsilon_{\rm Si}$
	(mÅ)	(mÅ)	(dex)	(dex)
SiII3856	27	5	7.65	0.24
SiII3862	15	2	7.44	0.13
SiII6371	23	4	7.64	0.13
SiIII4552	133	5	7.45	0.08
SiIII4567	110	2	7.40	0.04
SiIII4574	79	2	7.50	0.05
SiIII5739	81	2	7.47	0.04
SiIV4089	26	1	7.59	0.06
SiIV4116	18	2	7.48	0.15
			$\epsilon_{\rm Si}$ = 7.50	$\Delta\epsilon_{\rm Si}$ ( $\sigma$ ) = 0.08
	$\Delta$ $\xi_{\rm t}$ (Si) = 0.5		$\Rightarrow$	$\Delta\epsilon_{\rm Si}$ ( $\xi_{\rm t}$ ) = 0.02

HD 35299	$T_{\rm eff}$ = 23 700 K, log g = 4.2 dex			$\xi_{\rm t}$ (O)=2.8
OII3945	44	2	8.81	0.06
OII3954	59	2	8.72	0.05
OII3982	38	2	8.62	0.06
OII4317	78	5	8.80	0.09
OII4319	66	3	8.69	0.07
OII4366	61	3	8.59	0.07
OII4414	95	5	8.70	0.09
OII4416	80	2	8.77	0.04
OII4452	32	2	8.61	0.07
OII4641	91	5	8.79	0.10
OII4650	112	5	8.73	0.09
OII4661	68	3	8.77	0.07
OII4673	25	2	8.76	0.08
OII4676	59	2	8.68	0.05
OII4696	17	2	8.70	0.10
OII6641	18	2	8.82	0.09
OII6721	29	3	8.77	0.09
OII4072	82	3	8.81	0.07
OII4076	94	4	8.79	0.08
OII4078	35	2	8.79	0.07
OII4086	36	2	8.67	0.07
OII4891	16	3	8.64	0.16
OII4906	28	2	8.70	0.07
OII4941	25	2	8.59	0.08
OII4943	40	2	8.71	0.06
OII4956	12	2	8.78	0.13
			$\epsilon_{\rm O}$ = 8.72	$\Delta\epsilon_{\rm O}$ ( $\sigma$ ) = 0.07
	$\Delta$ $\xi_{\rm t}$ (O) = 0.6		$\Rightarrow$	$\Delta\epsilon_{\rm O}$ ( $\xi_{\rm t}$ ) = 0.03

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