HE1241-2907

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

Teff : 6900+-100 log g : 3.8+-0.3 vturb : 1.8+-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
LiN/A......<+2.41<-0.85<2.15<+2.41Li
CN/A...<+2.00...<-1.00<2.00<7.43C
NN/A...<+2.60...<-0.40<2.60<7.43N
ON/A...<+3.90...<0.90<3.90<9.59O
NaN/A...+0.87+-0.18...-2.13+-0.180.87+-0.184.11+-0.18Na
MgN/A...+0.18+-0.19...-2.82+-0.190.18+-0.194.78+-0.19Mg
AlN/A...<-0.60...<-3.60<-0.60<2.85Al
SiN/A...+0.03+-0.20...-2.97+-0.200.03+-0.204.54+-0.20Si
CaN/A...+0.21+-0.19...-2.79+-0.190.21+-0.193.55+-0.19Ca
ScN/A...+0.34+-0.22...-2.66+-0.220.34+-0.220.49+-0.22Sc
TiN/A...+0.28+-0.18...-2.72+-0.180.28+-0.182.23+-0.18Ti
VN/A...<+1.60...<-1.40<1.60<2.53V
CrN/A...+0.04+-0.21...-2.96+-0.210.04+-0.212.68+-0.21Cr
MnN/A...<+0.00...<-3.00<0.00<2.43Mn
FeN/A-3.00+-0.20......-3.00+-0.20...4.50+-0.20Fe
CoN/A...<+1.00...<-2.00<1.00<2.99Co
NiN/A...+0.16+-0.21...-2.84+-0.210.16+-0.213.38+-0.21Ni
ZnN/A...<+1.40...<-1.60<1.40<2.96Zn
SrN/A...-0.77+-0.22...-3.77+-0.22-0.77+-0.22-0.90+-0.22Sr
BaN/A...<-0.30...<-3.30<-0.30<-1.12Ba
EuN/A...<+2.40...<-0.60<2.40<-0.08Eu

Binary Parameters

Vrad 336.3+-2.2

Position

Right Ascension : 12 44 13.00 Declination : -29 23 47.0 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 4-31 3600 336.3+-2.2