BPS CS22876-032B

CS22876-032B

taken from 2 paper(s):

/J.E.Norris et al.(2000)/ /J.I.GonzalezHernandez et al.(2008)/

J.E.Norris et al.,ApJ, 540, 456, 2000(ADS)

Extremely Metal-poor Stars. VII. The Most Metal-poor Dwarf, CS 22876-032

Stellar Parameters

T_eff : 5600

log g : 4.5

v_turb : 1.0

Chemical Abundances

		Original Data			Converted Data Asplund et al. (2009)
Element	Nline	[X/H]	[X/Fe]	log-e	[X/H]	[X/Fe]	log-e	Element
Mg I	N/A	...	0.51+-0.15	...	-3.22+-0.15	0.32+-0.15	4.38+-0.15	Mg I
Al I	N/A	...	-0.42+-0.23	...	-4.11+-0.23	-0.57+-0.23	2.34+-0.23	Al I
Si I	N/A	...	0.29+-0.24	...	-3.38+-0.24	0.16+-0.24	4.13+-0.24	Si I
Ca I	N/A	...	-0.01+-0.24	...	-3.70+-0.24	-0.16+-0.24	2.64+-0.24	Ca I
Ti II	N/A	...	0.23+-0.23	...	-3.44+-0.23	0.10+-0.23	1.51+-0.23	Ti II
Mn I	N/A	...	<-0.26+-0.06	...	<-4.01+-0.06	<-0.47+-0.06	<1.42+-0.06	Mn I
Fe I	N/A	-3.71	...	...	-3.54	...	3.96	Fe I

Binary Parameters

Binarity	Positive
Vrad	-93.36+-0.28
Period	424.71

Position

Right Ascension : 00 07 37.50

Declination : -35 31 17.0

Galactic Longitude (l) : N/A

Galactic Latitude (b) : N/A

Observing Log

Date of Observation	JD	Facility	Resolution	S/N	Exposure Time	Vrad
1989-09-13	2447783.2	ANGLO	40000	N/A	N/A	-74.8+-1.0
1989-10-16	2447815.7			N/A	N/A	-81.2+-1.0
1990-09-27	2448162.1	ANGLO	40000	N/A	N/A	-76.2+-1.0
1992-08-17	2448851.8			N/A	N/A	-107.6+-1.0
1996-08-07	2450303.1	ANGLO	40000	N/A	N/A	-76.2+-1.0
1997-08-23	2450683.8	ANGLO	40000	N/A	N/A	-81.3+-1.0
1998-08-12	2451038.3	ANGLO	40000	N/A	N/A	-101.1+-1.0
1999-09-23	2451444.6	ANGLO	40000	N/A	N/A	-105.5+-1.0

J.I.GonzalezHernandez et al.,AAP, 480, 233, 2008(ADS)

First stars XI. Chemical composition of the extremely metal-poor dwarfs in the binary CS 22876-032

Stellar Parameters

T_eff : 5900

log g : 4.6

v_turb : 1.5

Chemical Abundances

		Original Data			Converted Data Asplund et al. (2009)
Element	Nline	[X/H]	[X/Fe]	log-e	[X/H]	[X/Fe]	log-e	Element
Li I	1	...	...	1.75+-0.04	-1.51+-0.04	2.06+-0.04	1.75+-0.04	Li I
O	9	-1.75+-0.09	1.81+-0.09	...	-1.72+-0.09	1.85+-0.09	6.97+-0.09	O
Na I	1	-3.79+-0.05	-0.22+-0.05	...	-3.70+-0.05	-0.13+-0.05	2.54+-0.05	Na I
Mg I	9	-3.14+-0.24	0.43+-0.24	...	-3.16+-0.24	0.41+-0.24	4.44+-0.24	Mg I
Al I	2	-3.75+-0.22	-0.18+-0.22	...	-3.73+-0.22	-0.16+-0.22	2.72+-0.22	Al I
Si I	1	-3.48+-0.04	0.09+-0.04	...	-3.44+-0.04	0.13+-0.04	4.07+-0.04	Si I
Ca I	1	-3.68+-0.04	-0.11+-0.04	...	-3.66+-0.04	-0.09+-0.04	2.68+-0.04	Ca I
Ca II	2	-3.81+-0.11	-0.54+-0.11	...	-3.79+-0.11	-0.22+-0.11	2.55+-0.11	Ca II
Sc II	2	-3.57+-0.11	-0.30+-0.11	...	-3.55+-0.11	0.02+-0.11	-0.40+-0.11	Sc II
Ti II	12	-3.45+-0.23	-0.18+-0.23	...	-3.38+-0.23	0.19+-0.23	1.57+-0.23	Ti II
Cr I	4	-3.92+-0.35	-0.35+-0.35	...	-3.89+-0.35	-0.32+-0.35	1.75+-0.35	Cr I
Cr II	1	-3.30+-0.30	-0.03+-0.30	...	-3.27+-0.30	0.30+-0.30	2.37+-0.30	Cr II
Mn II	1	-3.86+-0.37	-0.59+-0.37	...	-3.90+-0.37	-0.33+-0.37	1.53+-0.37	Mn II
Fe I	37	-3.57+-0.21	...	...	-3.57+-0.21	...	3.93+-0.21	Fe I
Fe II	9	-3.27+-0.31	...	...	-3.27+-0.31	...	4.23+-0.31	Fe II
Co I	4	-2.92+-0.08	0.65+-0.08	...	-2.99+-0.08	0.58+-0.08	2.00+-0.08	Co I
Ni I	12	-3.45+-0.16	0.12+-0.16	...	-3.42+-0.16	0.15+-0.16	2.80+-0.16	Ni I

Binary Parameters

Binarity	Positive
Vrad	-93.11+-0.13
Period	424.81

Position

Right Ascension : 00 07 37.50

Declination : -35 31 17.0

Galactic Longitude (l) : N/A

Galactic Latitude (b) : N/A

Observing Log

Date of Observation	JD	Facility	Resolution	S/N	Exposure Time	Vrad
2000-10-17	HJD-2,400,000	VLT	43000	N/A	N/A	N/A
2000-10-20	HJD-2,400,000	VLT	43000	N/A	N/A	N/A
2000-7-19	HJD-2,400,000	VLT	43000	N/A	N/A	N/A
2000-7-20	HJD-2,400,000	VLT	43000	N/A	N/A	N/A
2000-8-03	HJD-2,400,000	VLT	43000	N/A	N/A	N/A
2000-8-11	HJD-2,400,000	VLT	43000	N/A	N/A	N/A
2001-11-07	HJD-2,400,000	VLT	43000	N/A	N/A	N/A
2001-11-08	HJD-2,400,000	VLT	43000	N/A	N/A	N/A
2001-11-09	HJD-2,400,000	VLT	43000	N/A	N/A	N/A