HE0450-4902

HE0450-4902

taken from 1 paper(s):

/T.Hansen et al.(2015)/

T.Hansen et al.,ApJ, 807, 173, 2015(ADS)

An Elemental Assay of Very, Extremely, and Ultra-metal-poor Stars

Stellar Parameters

T_eff : 6300+-100

log g : 4.5+-0.3

v_turb : 1.2+-0.3

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	N/A	...	...	<+1.98	<-1.28	<1.79	<+1.98	Li
C	N/A	...	+2.03+-0.23	...	-1.04+-0.23	2.03+-0.23	7.39+-0.23	C
N	N/A	...	+2.00+-0.29	...	-1.07+-0.29	2.00+-0.29	6.76+-0.29	N
O	N/A	...	<+3.50	...	<0.43	<3.50	<9.12	O
Na	N/A	...	+0.23+-0.22	...	-2.84+-0.22	0.23+-0.22	3.40+-0.22	Na
Mg	N/A	...	+0.53+-0.20	...	-2.54+-0.20	0.53+-0.20	5.06+-0.20	Mg
Al	N/A	...	-0.78+-0.26	...	-3.85+-0.26	-0.78+-0.26	2.60+-0.26	Al
Si	N/A	...	+0.00+-0.21	...	-3.07+-0.21	0.00+-0.21	4.44+-0.21	Si
Ca	N/A	...	+0.70+-0.23	...	-2.37+-0.23	0.70+-0.23	3.97+-0.23	Ca
Sc	N/A	...	+0.12+-0.24	...	-2.95+-0.24	0.12+-0.24	0.20+-0.24	Sc
Ti	N/A	...	+0.58+-0.22	...	-2.49+-0.22	0.58+-0.22	2.46+-0.22	Ti
V	N/A	...	<+1.30	...	<-1.77	<1.30	<2.16	V
Cr	N/A	...	+0.03+-0.21	...	-3.04+-0.21	0.03+-0.21	2.60+-0.21	Cr
Mn	N/A	...	-0.73+-0.26	...	-3.80+-0.26	-0.73+-0.26	1.63+-0.26	Mn
Fe	N/A	-3.07+-0.20	...	...	-3.07+-0.20	...	4.43+-0.20	Fe
Co	N/A	...	<+0.60	...	<-2.47	<0.60	<2.52	Co
Ni	N/A	...	+0.00+-0.20	...	-3.07+-0.20	0.00+-0.20	3.15+-0.20	Ni
Zn	N/A	...	<+1.40	...	<-1.67	<1.40	<2.89	Zn
Sr	N/A	...	+0.64+-0.26	...	-2.43+-0.26	0.64+-0.26	0.44+-0.26	Sr
Ba	N/A	...	+1.21+-0.20	...	-1.86+-0.20	1.21+-0.20	0.32+-0.20	Ba
Eu	N/A	...	<+2.00	...	<-1.07	<2.00	<-0.55	Eu
Pb	N/A	...	<+3.00	...	<-0.07	<3.00	<1.97	Pb

Binary Parameters

Vrad	332.4+-1.5

Position

Right Ascension : 04 51 43.30

Declination : -48 57 25.0

Galactic Longitude (l) : N/A

Galactic Latitude (b) : N/A

Observing Log

Date of Observation	JD	Facility	Resolution	S/N	Exposure Time	Vrad
2006-04-17	N/A	VLT	45000	4-29	3600	332.4+-1.5