A0004

Bibliography Data

Title STELLAR ARCHAEOLOGY: A KECK PILOT PROGRAM ON EXTREMELY METAL-POOR STARS FROM THE HAMBURG/ESO SURVEY. III. THE LEAD (Pb) STAR HE 0024-2523
ADS S.Lucatello et al.,AJ, 125, 875, 2003
Authors S. Lucatello, R. Gratton, J. G. Cohen, T. C. Beers, N. Christlieb, E. Carretta, S. Ramirez

Milky Way

List of objects (1 stars)

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

Name Comment SIMBAD Object
HE0024-2523 N/A S O

HE0024-2523

Stellar Parameters

Teff : 6625 log g : 4.3 vturb : 1.4

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......1.5+-0.1-1.76+-0.11.01+-0.11.5+-0.1Li
CHN/A...2.6+-0.1...0.01+-0.12.78+-0.18.44+-0.1CH
CNN/A...2.1+-0.1...-0.40+-0.12.37+-0.17.43+-0.1CN
O I1...0.40...-2.080.696.61O I
Na I2...-0.17+-0.13...-2.80+-0.13-0.03+-0.133.44+-0.13Na I
Mg I4...0.73+-0.06...-2.01+-0.060.76+-0.065.59+-0.06Mg I
Al I1...-0.35...-3.05-0.283.40Al I
Si I1...0.34...-2.340.435.17Si I
Ca I4...0.66+-0.17...-2.04+-0.170.73+-0.174.30+-0.17Ca I
Sc II3...0.37+-0.14...-2.41+-0.140.36+-0.140.74+-0.14Sc II
Ti I3...0.85+-0.10...-1.83+-0.100.94+-0.103.12+-0.10Ti I
Ti II12...0.15+-0.05...-2.53+-0.050.24+-0.052.42+-0.05Ti II
Cr I2...-0.41+-0.15...-3.10+-0.15-0.33+-0.152.54+-0.15Cr I
Mn I2...-0.26+-0.06...-3.02+-0.06-0.25+-0.062.41+-0.06Mn I
Fe I36-2.72+-0.12......-2.77+-0.12...4.73+-0.12Fe I
Fe II3-2.67+-0.14......-2.72+-0.14...4.78+-0.14Fe II
Sr II2...0.34+-0.24...-2.35+-0.240.42+-0.240.52+-0.24Sr II
Y II1...<0.91...<-1.78<0.99<0.43Y II
Zr II1...<1.22...<-1.48<1.29<1.10Zr II
Ba II3...1.46+-0.20...-1.31+-0.201.46+-0.200.87+-0.20Ba II
La IN/A...1.8+-0.2...-0.80+-0.21.97+-0.20.30+-0.2La I
Eu IN/A...<1.1+-0.1...<-1.63+-0.1<1.14+-0.1<-1.11+-0.1Eu I
Pb IN/A...3.3+-0.1...0.59+-0.13.36+-0.12.63+-0.1Pb I

Isotopic Ratio

12C/13C 6+-1

Binary Parameters

Binarity Positive
Vrad -185.0
Period 3.14

Position

Right Ascension : 00 27 27.66 Declination : -25 06 28.2 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2000-09-24 2451811.386 KECKHIRES 45000 40 1200 -185.0+-0.4
2000-09-24 2451811.397 KECKHIRES 45000 40 1200 -183.6+-0.8
2000-09-24 2451811.412 KECKHIRES 45000 40 1200 -186.6+-0.7
2000-09-24 2451811.427 KECKHIRES 45000 40 1200 -187.4+-1.1
2000-09-24 2451811.442 KECKHIRES 45000 40 1200 -189.6+-0.3
2001-08-27 2452148.352 VLT 50000 80 3600 -127.0+-0.5
2001-09-27 2452179.398 KECKHIRES 45000 40 1200 -135.8+-1.1
2001-09-30 2452182.365 KECKHIRES 45000 40 1200 -125.6+-1.2
2001-10-23 2452205.017 VLT 50000 30 600 -218.2+-0.7
2001-10-23 2452206.014 VLT 50000 40 1800 -136.2+-0.4
2001-10-25 2452207.010 VLT 50000 20 600 -160.8+-0.6
2001-10-25 2452207.241 HALE 3500 30 400 -186.2+-5.0
2001-10-26 2452208.161 VLT 50000 35 1800 -228.6+-0.5
2001-10-26 2452208.251 HALE 3500 30 400 -227.8+-5.0
2001-10-27 2452209.218 HALE 3500 30 400 -145.6+-5.0
2001-10-28 2452210.021 VLT 50000 20 600 -133.9+-0.8
2001-10-28 2452210.216 HALE 3500 30 400 -140.1+-5.0
2001-10-28 2452210.255 VLT 50000 20 600 -148.2+-0.9