HE0305-4520
taken from 3 paper(s):
/P.S.Barklem et al.(2005)/
/L.Zhang et al.(2011)/
/M.Spite et al.(2014)/
The Hamburg/ESO R-process enhanced star survey (HERES). II. Spectroscopic analysis of the survey sample
Stellar Parameters
Teff : 4817 | log g : 1.56 | vturb : 2.02 |
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 |
CH | 1 | ... | 0.33+-0.28 | 5.80+-0.26 | -2.63+-0.26 | 0.28+-0.28 | 5.80+-0.26 | CH |
Mg I | 6 | ... | 0.20+-0.23 | 4.87+-0.18 | -2.73+-0.18 | 0.18+-0.23 | 4.87+-0.18 | Mg I |
Al I | 1 | ... | -0.77+-0.29 | 2.79+-0.28 | -3.66+-0.28 | -0.75+-0.29 | 2.79+-0.28 | Al I |
Ca I | 8 | ... | 0.23+-0.25 | 3.67+-0.20 | -2.67+-0.20 | 0.24+-0.25 | 3.67+-0.20 | Ca I |
Sc II | 5 | ... | 0.23+-0.24 | 0.49+-0.23 | -2.66+-0.23 | 0.25+-0.24 | 0.49+-0.23 | Sc II |
Ti | 15 | ... | 0.19+-0.23 | 2.30+-0.21 | -2.65+-0.21 | 0.26+-0.23 | 2.30+-0.21 | Ti |
Cr I | 3 | ... | -0.47+-0.24 | 2.29+-0.24 | -3.35+-0.24 | -0.44+-0.24 | 2.29+-0.24 | Cr I |
Mn I | 3 | ... | -0.60+-0.23 | 1.88+-0.22 | -3.55+-0.22 | -0.64+-0.23 | 1.88+-0.22 | Mn I |
Fe | 51 | ... | 0.00+-0.22 | 4.59+-0.18 | -2.91+-0.18 | 0.00+-0.22 | 4.59+-0.18 | Fe |
Co I | 5 | ... | 0.18+-0.24 | 2.19+-0.22 | -2.80+-0.22 | 0.11+-0.24 | 2.19+-0.22 | Co I |
Ni I | 4 | ... | 0.12+-0.28 | 3.46+-0.29 | -2.76+-0.29 | 0.15+-0.28 | 3.46+-0.29 | Ni I |
Sr | 2 | ... | -0.66+-0.31 | -0.60+-0.33 | -3.47+-0.33 | -0.56+-0.31 | -0.60+-0.33 | Sr |
Y II | 2 | ... | -0.38+-0.25 | -1.05+-0.20 | -3.26+-0.20 | -0.35+-0.25 | -1.05+-0.20 | Y II |
Ba II | 1 | ... | 0.59+-0.27 | -0.20+-0.27 | -2.38+-0.27 | 0.53+-0.27 | -0.20+-0.27 | Ba II |
La II | 1 | ... | 0.29+-0.25 | -1.45+-0.23 | -2.55+-0.23 | 0.36+-0.25 | -1.45+-0.23 | La II |
Position
Right Ascension : 03 07 02.19 | Declination : -45 09 00.6 | Galactic Longitude (l) : N/A | Galactic Latitude (b) : N/A |
Observing Log
Date of Observation | JD | Facility | Resolution | S/N | Exposure Time | Vrad |
| N/A | VLT | 20000 | 56 | N/A | 135.3 |
The Hamburg/ESO R-process Enhanced Star survey (HERES). VI. The Galactic chemical evolution of silicon
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 | -2.71 | 0.20 | 5.81 | -2.62 | 0.29 | 5.81 | C |
Fe | N/A | -2.91 | ... | ... | -2.91 | ... | 4.59 | Fe |
Position
Right Ascension : 03 07 02.19 | Declination : -45 09 00.6 | Galactic Longitude (l) : N/A | Galactic Latitude (b) : N/A |
Observing Log
Date of Observation | JD | Facility | Resolution | S/N | Exposure Time | Vrad |
| N/A | VLT | 20000 | N/A | N/A | N/A |
The low Sr/Ba ratio on some extremely metal-poor stars
Stellar Parameters
Teff : 4820+-100 | log g : 1.3+-0.2 | vturb : 2+-0.2 |
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 |
CH | N/A | ... | 0.42+-0.1 | ... | -2.41+-0.1 | 0.54+-0.1 | 6.02+-0.1 | CH |
N | N/A | ... | 1.58+-0.15 | ... | -1.23+-0.15 | 1.72+-0.15 | 6.60+-0.15 | N |
O | N/A | ... | 0.83+-0.1 | ... | -1.94+-0.1 | 1.01+-0.1 | 6.75+-0.1 | O |
Na | N/A | ... | 1.04+-0.1 | ... | -1.82+-0.1 | 1.13+-0.1 | 4.42+-0.1 | Na |
Mg | N/A | ... | 0.36+-0.11 | ... | -2.61+-0.11 | 0.34+-0.11 | 4.99+-0.11 | Mg |
Ca | N/A | ... | 0.26+-0.1 | ... | -2.67+-0.1 | 0.28+-0.1 | 3.67+-0.1 | Ca |
Ti I | N/A | ... | 0.16+-0.05 | ... | -2.72+-0.05 | 0.23+-0.05 | 2.23+-0.05 | Ti I |
Ti II | N/A | ... | 0.21+-0.05 | ... | -2.67+-0.05 | 0.28+-0.05 | 2.28+-0.05 | Ti II |
Fe | N/A | -2.95+-0.10 | ... | ... | -2.95+-0.10 | ... | 4.55+-0.10 | Fe |
Fe I | N/A | -2.96+-0.05 | ... | ... | -2.96+-0.05 | ... | 4.54+-0.05 | Fe I |
Fe II | N/A | -2.91+-0.05 | ... | ... | -2.91+-0.05 | ... | 4.59+-0.05 | Fe II |
Sr | N/A | ... | -0.76+-0.11 | ... | -3.61+-0.11 | -0.66+-0.11 | -0.74+-0.11 | Sr |
Y | N/A | ... | -0.58+-0.1 | ... | -3.50+-0.1 | -0.55+-0.1 | -1.29+-0.1 | Y |
Zr | N/A | ... | -0.38+-0.11 | ... | -3.31+-0.11 | -0.36+-0.11 | -0.73+-0.11 | Zr |
Ba | N/A | ... | 0.32+-0.1 | ... | -2.68+-0.1 | 0.27+-0.1 | -0.50+-0.1 | Ba |
La | N/A | ... | 0.09+-0.12 | ... | -2.79+-0.12 | 0.16+-0.12 | -1.69+-0.12 | La |
Ce | N/A | ... | 0.31+-0.12 | ... | -2.64+-0.12 | 0.31+-0.12 | -1.06+-0.12 | Ce |
Nd | N/A | ... | 0.32+-0.1 | ... | -2.55+-0.1 | 0.40+-0.1 | -1.13+-0.1 | Nd |
Eu | N/A | ... | -0.31+-0.11 | ... | -3.27+-0.11 | -0.32+-0.11 | -2.75+-0.11 | Eu |
Pb | N/A | ... | 1.25+-0.22 | ... | -1.68+-0.22 | 1.27+-0.22 | 0.36+-0.22 | Pb |
Isotopic Ratio
Binary Parameters
Position
Right Ascension : 03 07 02.19 | Declination : -45 09 00.6 | Galactic Longitude (l) : N/A | Galactic Latitude (b) : N/A |
Observing Log
Date of Observation | JD | Facility | Resolution | S/N | Exposure Time | Vrad |
| 2454024.75 | VLT | 40000 | 100 | N/A | 136.6 |