A0276

Bibliography Data

Title	The Oxygen Abundance of the Ultra-metal-poor Star HE 0557-4840
ADS	J.E.Norris et al.,ApJ, 753, 150, 2012
Authors	J. E. Norris, N. Christlieb, M. S. Bessell, M. Asplund, K. Eriksson, A. J. Korn

Milky Way

List of objects (1 stars)

S: Find this object in SIMBAD
O: Find this object in Other papers

Name	Comment	SIMBAD	Object
HE0557-4840	N/A	S	O

HE0557-4840

Stellar Parameters

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
C	N/A	...	1.7+-0.1	5.4+-0.1	-3.03+-0.1	1.76+-0.1	5.4+-0.1	C
N	N/A	...	<1.0+-0.2	<4.0+-0.2	<-3.83+-0.2	<0.96+-0.2	<4.0+-0.2	N
O	N/A	...	2.3+-0.3	6.2+-0.3	-2.49+-0.3	2.30+-0.3	6.2+-0.3	O
Fe I	N/A	...	...	2.71+-0.03	-4.79+-0.03	...	2.71+-0.03	Fe I
Fe II	N/A	...	...	2.87+-0.11	-4.63+-0.11	...	2.87+-0.11	Fe II

Binary Parameters

Binarity	Negative
Vrad	212.0+-0.4

Position

Right Ascension : 05 58 39.26

Declination : -48 39 56.8

Galactic Longitude (l) : N/A

Galactic Latitude (b) : N/A

Observing Log

Date of Observation	JD	Facility	Resolution	S/N	Exposure Time	Vrad
2007-10-15	N/A	VLT	40000	N/A	N/A	212.0+-0.4
2007-12-05	N/A	VLT	40000	N/A	N/A	212.0+-0.4
2007-12-06	N/A	VLT	40000	N/A	N/A	212.0+-0.4