Publications (69)
New Abundances From Very Old Stars
T. Hansen, C. J. Hansen, N. Christlieb +3
High-Resolution Spectra Observed for SPY. II. DB and DBA Stars
B. Voss, D. Koester, R. Napiwotzki +2
The Most Metal-Poor Stars. II. Chemical Abundances of 190 Metal-Poor Stars Including 10 New Stars With [Fe/H] < -3.5
David Yong, John E. Norris, M. S. Bessell +6
Binaries discovered by the SPY project I. HE 1047-0436: a subdwarf B + white dwarf system
R. Napiwotzki, H. Edelmann, U. Heber +4
Efficient Searches for r-Process-Enhanced, Metal-Poor Stars
T. C. Beers, P. S. Barklem, N. Christlieb +1
Abundance analysis of the outer halo globular cluster Palomar 14
S. Caliskan, N. Christlieb, K. E. Grebel
Does the chemical signature of TYC 8442-1036-1 originate from a rotating massive star that died in a faint explosion?
G. Cescutti, M. Valentini, P. François +4
Finding the First Stars: The Hamburg/ESO Objective Prism Survey
N. Christlieb, D. Reimers, L. Wisotzki +3
Search for progenitors of supnernovae type Ia with SPY
R. Napiwotzki, N. Christlieb, H. Drechsel +13
CH in stellar atmospheres: an extensive linelist
T. Masseron, B. Plez, S. Van Eck +7
Binaries discovered by the SPY project. III. HE2209-1444: a massive, short period double degenerate
C. A. Karl, R. Napiwotzki, G. Nelemans +4
The Hamburg/ESO R-process Enhanced Star survey (HERES) II. Spectroscopic analysis of the survey sample
P. S. Barklem, N. Christlieb, T. C. Beers +7
Cool helium-rich white dwarfs from the Hamburg/ESO Survey
S. Friedrich, D. Koester, N. Christlieb +2
TOPoS: II. On the bimodality of carbon abundance in CEMP stars. Implications on the early chemical evolution of galaxies
P. Bonifacio, E. Caffau, M. Spite +18
High-resolution UVES/VLT spectra of white dwarfs observed for the ESO SN Ia Progenitor Survey. III. DA white dwarfs
D. Koester, B. Voss, R. Napiwotzki +5
Exploring the Origin of Lithium, Carbon, Strontium and Barium with four new Ultra Metal-Poor Stars
T. Hansen, C. J. Hansen, N. Christlieb +8
Close binary EHB stars from SPY
R. Napiwotzki, C. A. Karl, T. Lisker +5
Search for double degenerate progenitors of supernovae type Ia with SPY
R. Napiwotzki, H. Drechsel, U. Heber +13
Mining the Digital Hamburg/ESO Objective Prism Survey
N. Christlieb, L. Wisotzki, D. Reimers
The new record holder for the most iron-poor star: HE 1327-2326, a dwarf or subgiant with [Fe/H]=-5.4
A. Frebel, W. Aoki, N. Christlieb +16
A Search for Metal-poor Stars Pre-enriched by Pair-instability Supernovae I. A Pilot Study for Target Selection from Sloan Digital Sky Survey (SDSS)
J. Ren, N. Christlieb, G. Zhao
Chemical abundances of the metal-poor horizontal-branch stars CS 22186-005 and CS 30344-033
S. Caliskan, E. Caffau, P. Bonifacio +5
Identification of a DO white dwarf and a PG1159 star in the ESO SN Ia progenitor survey (SPY)
K. Werner, T. Rauch, R. Napiwotzki +3
Double degenerates and progenitors of supernovae type Ia
R. Napiwotzki, L. Yungelson, G. Nelemans +12
The Most Metal-Poor Stars. IV. The Two Populations With [Fe/H] < -3.0
John E. Norris, David Yong, M. S. Bessell +8
Bright Metal-Poor Stars from the Hamburg/ESO Survey. I. Selection and Follow-up Observations from 329 Fields
A. Frebel, N. Christlieb, J. E. Norris +9
The Hamburg/ESO R-process Enhanced Star survey (HERES). I. Project description, and discovery of two stars with strong enhancements of neutron-capture elements
N. Christlieb, T. C. Beers, P. S. Barklem +15
The metal-poor end of the Spite plateau. 1: Stellar parameters, metallicities and lithium abundances
L. Sbordone, P. Bonifacio, E. Caffau +16
The Hamburg/ESO R-process Enhanced Star survey (HERES) III. HE 0338-3945 and the formation of the r+s stars
K. Jonsell, P. S. Barklem, B. Gustafsson +4
An Update on the 0Z Project
J. G. Cohen, N. Christlieb, A. McWilliam +2
An Elemental Assay of Very, Extremely, and Ultra Metal-Poor Stars
T. Hansen, C. J. Hansen, N. Christlieb +8
The Hamburg/ESO R-process Enhanced Star survey (HERES) VIII. The r+s star HE 1405 0822
W. Y. Cui, T. Sivarani, N. Christlieb
The Galactic Nature of High Velocity Cloud Complex WB
C. Thom, M. E. Putman, B. K. Gibson +5
The stellar content of the Hamburg/ESO survey. II. A large, homogeneously-selected sample of high latitude carbon stars
N. Christlieb, P. J. Green, L. Wisotzki +1
HE 0557-4840 - Ultra-Metal-Poor and Carbon-Rich
John E. Norris, N. Christlieb, A. J. Korn +5
Stellar science from a blue wavelength range - A possible design for the blue arm of 4MOST
C. J. Hansen, H. -G. Ludwig, W. Seifert +12
Identification of a DO White Dwarf and a PG1159 Star in the ESO SN Ia Progenitor Survey (SPY)
K. Werner, T. Rauch, R. Napiwotzki +3
Hot subdwarfs from the ESO Supernova Ia Progenitor Survey - I. Atmospheric parameters and cool companions of sdB stars
T. Lisker, U. Heber, R. Napiwotzki +4
Binaries discovered by the SPY project. IV. Five single-lined DA double white dwarfs
G. Nelemans, R. Napiwotzki, C. Karl +8
The chemical composition of red giants in 47 Tucanae. II. Magnesium isotopes and pollution scenarios
A. O. Thygesen, L. Sbordone, H. -G. Ludwig +6
Velocity and abundance precisions for future high-resolution spectroscopic surveys: a study for 4MOST
E. Caffau, A. Koch, L. Sbordone +19
The Hamburg/ESO survey for bright QSOs. III. A large flux-limited sample of QSOs
L. Wisotzki, N. Christlieb, N. Bade +4
The Hamburg/ESO R-process Enhanced Star survey (HERES) VI. The Galactic Chemical Evolution of Silicon
L. Zhang, T. Karlsson, N. Christlieb +3
The stellar content of the Hamburg/ESO survey. III. Field horizontal-branch stars in the Galaxy
N. Christlieb, T. C. Beers, C. Thom +5
The stellar content of the Hamburg/ESO survey. V. The metallicity distribution function of the Galactic halo
T. Schoerck, N. Christlieb, J. G. Cohen +22
Search for double degenerate progenitors of supernovae type Ia with SPY
R. Napiwotzki, N. Christlieb, H. Drechsel +13
The stellar content of the Hamburg/ESO survey VI. The metallicity distribution of main-sequence turnoff stars in the Galactic halo
H. N. Li, N. Christlieb, T. Schörck +7
Double degenerates from the supernova Ia progenitor survey (SPY)
C. Karl, R. Napiwotzki, U. Heber +4
Four magnetic DB white dwarfs discovered by the Hamburg/ESO survey
D. Reimers, S. Jordan, V. Beckmann +2
Binaries discovered by the SPY project. II. HE 1414-0848: a double degenerate with a mass close to the Chandrasekhar limit
R. Napiwotzki, D. Koester, G. Nelemans +6
The stellar content of the Hamburg/ESO survey. I. Automated selection of DA white dwarfs
N. Christlieb, L. Wisotzki, D. Reimers +3
Carbon-Enhanced Metal-Poor Stars in the Early Galaxy
B. Marsteller, T. C. Beers, S. Rossi +3
The Most Metal-Poor Stars. III. The Metallicity Distribution Function and CEMP Fraction
David Yong, John E. Norris, M. S. Bessell +6
Abundance analysis of two extremely metal-poor stars from the Hamburg/ESO Survey
E. Depagne, V. Hill, N. Christlieb +1
TOPoS: I. Survey design and analysis of the first sample
E. Caffau, P. Bonifacio, L. Sbordone +14
The stellar content of the Hamburg/ESO survey. IV. Selection of candidate metal-poor stars
N. Christlieb, T. Schoerck, A. Frebel +3
HE1327-2326, an unevolved star with [Fe/H]<-5.0. I. A Comprehensive Abundance Analysis
W. Aoki, A. Frebel, N. Christlieb +17
TOPoS: III. An ultra iron-poor multiple CEMP system
E. Caffau, P. Bonifacio, M. Spite +15
Fluorine Abundances of Galactic Low-Metallicity Giants
H. N. Li, H. -G. Ludwig, E. Caffau +2
HE0107-5240, A Chemically Ancient Star.I. A Detailed Abundance Analysis
N. Christlieb, B. Gustafsson, A. J. Korn +5
Spectroscopic analysis of sdB stars from the ESO Supernova Ia Progenitor Survey
T. Lisker, U. Heber, R. Napiwotzki +3
Lithium abundances in CEMP stars
T. Masseron, J. A. Johnson, S. Lucatello +4
The new complex gravitational lens system HE 0230-2130
L. Wisotzki, N. Christlieb, M. C. Liu +3
The Hamburg/ESO R-process Enhanced Star survey (HERES) X. HE 2252-4225, one more r-process enhanced and actinide-boost halo star
L. Mashonkina, N. Christlieb, K. Eriksson
On the oxygen abundance of HE0107-5240
M. S. Bessell, N. Christlieb, B. Gustafsson
Hot subdwarfs from the ESO Supernova Ia Progenitor Survey: II. Atmospheric parameters of subdwarf O stars
A. Stroeer, U. Heber, T. Lisker +4
The Hamburg/ESO R-process Enhanced Star survey (HERES) IV. Detailed abundance analysis and age dating of the strongly r-process enhanced stars CS 29491-069 and HE 1219-0312
W. Hayek, U. Wiesendahl, N. Christlieb +8
The Hamburg/ESO R-process Enhanced Star survey (HERES). V. Detailed abundance analysis of the r-process enhanced star HE 2327-5642
L. Mashonkina, N. Christlieb, P. S. Barklem +3
The Most Metal-Poor Stars. I. Discovery, Data, and Atmospheric Parameters
John E. Norris, M. S. Bessell, David Yong +7