The role of binaries in the enrichment of the early Galactic halo - II. Carbon-enhanced metal-poor stars: CEMP-no stars

T. T. Hansen; J. Andersen; B. Nordström; T. C. Beers; V. M. Placco; J. Yoon; L. A. Buchhave

doi:10.1051/0004-6361/201527235

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Volume 586 (February 2016)

A&A, 586 (2016) A160

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Table 2

Results of radial-velocity monitoring.

Stellar ID	Nobs	Template	RV mean	σ	ΔT	P(χ²)	Binary
			(km s^-1)	(km s^-1)	(Days)

HE 0020−1741	9	Co-add	+9.039	0.212	1066	0.122	No
CS 29527−015	6	BD+44°493	+47.122	0.425	1064	0.992	No
CS 22166−016	8	Co-add	−210.504	0.803	1034	0.255	No
HE 0219−1739	15	Co-add	+106.689	5.090	2207	0.000	Yes
BD+44°493	18	Co-add	−150.084	0.051	1298	0.927^*	No
HE 0405−0526	13	Co-add	+165.657	0.039	904	0.993	No
HE 1012−1540	8	HE 0405−0526	+226.052	0.207	802	0.988	No
HE 1133−0055	9	HE 0405−0526	+270.632	0.336	2217	0.707	No
HE 1150−0428	13	Strongest	+48.042	8.350	2220	0.000	Yes
HE 1201−1512	5	Delta	+239.450	1.854	42	0.582	No
HE 1300+0157	5	BD+44°493	+74.494	0.583	412	0.122^*	No
BS 16929−005	7	Delta	−50.627	0.474	885	0.912^*	No
HE 1300−0641	2	HE 0405−0526	+68.846	0.114	386	0.827	No
HE 1302−0954	3	BD+44°493	+32.538	0.039	386	0.968	No
CS 22877−001	15	Co-add	+166.297	0.111	2923	0.737^*	No
HE 1327−2326	9	Delta	+64.343	1.170	2577	0.545	No
HE 1410+0213	23	Co-add	+81.140	0.180	3006	0.196	No
HE 1506−0113	10	Delta	−81.467	2.772	493	0.000^*	Yes
CS 22878−027	7	Delta	−90.870	0.768	1034	0.775^*	No
CS 29498−043	15	Delta	−32.488	0.701	2603	0.967	No
CS 29502−092	20	Co-add	−67.160	0.173	2603	0.616^*	No
HE 2318−1621	7	BD+44°493	−41.698	0.279	1034	0.172	No
CS 22949−037	7	BD+44°493	−125.560	0.269	765	0.894^*	No
CS 22957−027	18	Co-add	−67.305	5.736	1568	0.000	Yes

Notes. Columns: star name; number of NOT observations; template used; mean heliocentric radial velocity and standard deviation; time span; variability criterion P(χ²); and binary status.

^(*)

Additional literature data included in P(χ²), see Sect. 3.2 and Table 3.

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