Publications (115)
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
Kinematics of Metal-Poor Stars in the Galaxy. II. Proper Motions for a Large Non-Kinematically Selected Sample
T. C. Beers, M. Chiba, Y. Yoshii +4
New Abundances From Very Old Stars
T. Hansen, C. J. Hansen, N. Christlieb +3
The Southern Proper Motion Program IV. The SPM4 Catalog
T. M. Girard, W. F. van Altena, N. Zacharias +8
New Resources to Explore the Old Galaxy: Mining the SDSS
C. Allende Prieto, T. C. Beers, Y. Li +3
An Orphan in the "Field of Streams"
V. Belokurov, N. W. Evans, M. J. Irwin +19
Efficient Searches for r-Process-Enhanced, Metal-Poor Stars
T. C. Beers, P. S. Barklem, N. Christlieb +1
High-resolution abundance analysis of very metal-poor r-I stars
C. Siqueira-Mello, V. Hill, B. Barbuy +9
Chemical Composition of the Carbon-rich, Extremely Metal-Poor Star CS 29498--043: A New Class of Extremely Metal-Poor Stars with Excesses of Magnesium and Silicon
W. Aoki, J. E. Norris, S. G. Ryan +2
A Curious New Milky Way Satellite in Ursa Major
D. B. Zucker, V. Belokurov, N. W. Evans +29
Finding the First Stars: The Hamburg/ESO Objective Prism Survey
N. Christlieb, D. Reimers, L. Wisotzki +3
The r-process in supernova explosions from the collapse of O-Ne-Mg cores
S. Wanajo, M. Tamamura, N. Itoh +4
First Stars XI. Chemical composition of the extremely metal-poor dwarfs in the binary CS 22876--032
J. I. González Hernández, P. Bonifacio, H. -G. Ludwig +15
Detection of Lead in the Carbon-Rich, Very Metal-Poor Star LP625-44: A Strong Constraint on s-Process Nucleosynthesis at Low Metallicity
W. Aoki, J. E. Norris, S. G. Ryan +2
The kinematics of late type stars in the solar cylinder studied with SDSS data
B. Fuchs, C. Dettbarn, H. -W. Rix +11
First stars IV.CS 29497-030: Evidence for operation of the s-process at very low metallicity
T. Sivarani, P. Bonifacio, P. Molaro +12
Nucleosynthesis in the Early Galaxy
F. Montes, T. C. Beers, J. Cowan +8
R-process pattern in the Very-Metal-Poor Halo Star CS31082-001
V. Hill, B. Plez, R. Cayrel +1
First stars IX -Mixing in extremely metal-poor giants. Variation of the 12C/13C, [Na/Mg] and [Al/Mg] ratios
M. Spite, R. Cayrel, V. Hill +11
Carbon-Enhanced Metal-Poor Stars in the Inner and Outer Halo Components of the Milky Way
D. Carollo, T. C. Beers, J. Bovy +6
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
The Origin of the Bifurcation in the Sagittarius Stream
M. Fellhauer, V. Belokurov, N. W. Evans +9
First stars XII. Abundances in extremely metal-poor turnoff stars,and comparison with the giants
P. Bonifacio, M. Spite, R. Cayrel +13
Modelling the observed properties of carbon-enhanced metal-poor stars using binary population synthesis
C. Abate, O. R. Pols, R. J. Stancliffe +4
On the newly discovered Canes Venatici II dSph galaxy
C. Greco, M. Dall'Ora, G. Clementini +11
Tuning the Clock: Uranium and Thorium Chronometers Applied to CS 31082-001
R. Toenjes, H. Schatz, K. -L. Kratz +4
The Field of Streams: Sagittarius and its Siblings
V. Belokurov, D. B. Zucker, N. W. Evans +18
The SEGUE Stellar Parameter Pipeline. I. Description and Initial Validation Tests
Y. S. Lee, T. C. Beers, T. Sivarani +10
The role of binaries in the enrichment of the early Galactic halo. III. Carbon-enhanced metal-poor stars -- CEMP-s stars
T. T. Hansen, J. Andersen, B. Nordström +4
A Subaru/HDS study of Lead (Pb) abundances in eight s-process-element-rich, metal-poor stars
W. Aoki, S. G. Ryan, J. E. Norris +2
The Origins of Two Classes of Carbon-Enhanced, Metal-Poor Stars
S. G. Ryan, W. Aoki, J. E. Norris +1
Exploring the Origin of Lithium, Carbon, Strontium and Barium with four new Ultra Metal-Poor Stars
T. Hansen, C. J. Hansen, N. Christlieb +8
The SEGUE Stellar Parameter Pipeline. II. Validation with Galactic Globular and Open Clusters
Y. S. Lee, T. C. Beers, T. Sivarani +13
uvby(-$β$) photometry of high-velocity and metal-poor stars X. Stars of very low metal abundance: observations, reddenings, metallicities, classifications, distances, and relative ages
W. J. Schuster, T. C. Beers, R. Michel +2
Statistical Time-Resolved Spectroscopy: A higher fraction of short-period binaries for metal-rich F-type dwarfs in SDSS
T. Hettinger, C. Badenes, J. Strader +2
Spectroscopic Studies of Extremely Metal-Poor Stars with Subaru/HDS:I. Observational Data
S. Honda, W. Aoki, H. Ando +14
Elemental abundances of metal poor carbon rich lead star: CS29497-030
T. Sivarani, P. Bonifacio, P. Molaro +12
Kinematics of Metal-Poor Stars in the Galaxy. III. Formation of the Stellar Halo and Thick Disk as Revealed from a Large Sample of Non-Kinematically Selected Stars
M. Chiba, T. C. Beers
Abundance analysis of SDSS J134338.67+484426.6; an extremely metal-poor star from the MARVELS pre-survey
A. Susmitha Rani, T. Sivarani, T. C. Beers +3
The ESO Large Programme First Stars
P. Bonifacio, J. Andersen, S. Andrievsky +19
First stars VII. Lithium in extremely metal poor dwarfs
P. Bonifacio, P. Molaro, T. Sivarani +12
Surveying the Inner Halo of the Galaxy with 2MASS-Selected Horizontal Branch Candidates
Warren R. Brown, M. J. Geller, S. J. Kenyon +3
Chemical abundances of the metal-poor horizontal-branch stars CS 22186-005 and CS 30344-033
S. Caliskan, E. Caffau, P. Bonifacio +5
Carbon Abundances of Three Carbon-Enhanced Metal-Poor Stars from High-Resolution Gemini-S/bHROS Spectra of the 8727A [C I] Line
S. C. Schuler, S. J. Margheim, T. Sivarani +4
First stars X. The nature of three unevolved Carbon-Enhanced Metal-Poor stars
T. Sivarani, T. C. Beers, P. Bonifacio +13
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
First Stars II. Elemental abundances in the extremely metal-poor star CS 22949--037: A diagnostic of early massive supernovae
E. Depagne, V. Hill, M. Spite +10
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
Two Stellar Components in the Halo of the Milky Way
D. Carollo, T. C. Beers, Y. S. Lee +9
The metal-poor end of the Spite plateau. 1: Stellar parameters, metallicities and lithium abundances
L. Sbordone, P. Bonifacio, E. Caffau +16
Measurement of the Europium Isotope Ratio for the Extremely Metal-Poor, r-Process-Enhanced Star CS31082-001
W. Aoki, S. Honda, T. C. Beers +1
Deep SDSS optical spectroscopy of distant halo stars II. Iron, calcium, and magnesium abundances
E. Fernández-Alvar, C. Allende Prieto, K. J. Schlesinger +11
Discovery of an Unusual Dwarf Galaxy in the Outskirts of the Milky Way
M. J. Irwin, V. Belokurov, N. W. Evans +24
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
Subcluster Merger and Galaxy Infall in A2151
C. M. Bird, D. S. Davis, T. C. Beers
Young [$α$/Fe]-enhanced stars discovered by CoRoT and APOGEE: What is their origin?
C. Chiappini, F. Anders, T. S. Rodrigues +34
Toward constraints on galaxy formation scenarios: stellar properties from Galactic surveys
P. Re Fiorentin, C. A. L. Bailer-Jones, T. C. Beers +3
Fluorine in carbon-enhanced metal-poor stars: a binary scenario
M. Lugaro, S. E. de Mink, R. G. Izzard +8
The role of binaries in the enrichment of the early Galactic halo. I. r-process-enhanced metal-poor stars
T. T. Hansen, J. Andersen, B. Nordstrøm +3
An Elemental Assay of Very, Extremely, and Ultra Metal-Poor Stars
T. Hansen, C. J. Hansen, N. Christlieb +8
Automated Determination of [Fe/H] and [C/Fe] from Low-Resolution Spectroscopy
B. Marsteller, T. C. Beers, T. Sivarani +5
Halo streams in the 7th SDSS data release
R. Klement, H. -W. Rix, C. Flynn +13
The Galactic Nature of High Velocity Cloud Complex WB
C. Thom, M. E. Putman, B. K. Gibson +5
A New Milky Way Dwarf Satellite in Canes Venatici
D. B. Zucker, V. Belokurov, N. W. Evans +30
A Search for Stars of Very Low Metal Abundance. V. Photoelectric UBV Photometry of Metal-Weak Candidates from the Northern HK Survey
P. Bonifacio, S. Monai, T. C. Beers
Early Star Formation, Nucleosynthesis, and Chemical Evolution in Proto-Galactic Clouds
L. Saleh, T. C. Beers, G. J. Mathews
Lead abundance in the uranium star CS 31082-001
B. Plez, V. Hill, R. Cayrel +6
Abell 521: Dynamical analysis of a young cluster
S. Maurogordato, D. Proust, T. C. Beers +5
The Extremely Metal-Poor, Neutron-Capture-Rich Star CS 22892-052: A Comprehensive Abundance Analysis
C. Sneden, J. J. Cowan, J. E. Lawler +9
Chemodynamics of the Milky Way. I. The first year of APOGEE data
F. Anders, C. Chiappini, B. X. Santiago +38
From First Stars to the Spite Plateau: a Possible Reconciliation of Halo Stars Observations with Predictions from Big Bang Nucleosynthesis
L. Piau, T. C. Beers, D. S. Balsara +3
Cats and Dogs, Hair and A Hero: A Quintet of New Milky Way Companions
V. Belokurov, D. B. Zucker, N. W. Evans +31
A New CEMP-s RR Lyrae Star
T. D. Kinman, W. Aoki, T. C. Beers +1
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
A Faint New Milky Way Satellite in Bootes
V. Belokurov, D. B. Zucker, N. W. Evans +30
Enrichment of Very Metal-Poor Stars with Both r-Process and s-Process Elements from 8-10 M_\odot Stars
S. Wanajo, K. Nomoto, N. Iwamoto +2
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
CS 30322-023: an ultra metal-poor TP-AGB star?
T. Masseron, S. Van Eck, B. Famaey +6
The Century Survey Galactic Halo Project I: Stellar Spectral Analysis
W. R. Brown, C. Allende Prieto, T. C. Beers +4
Fluorine in a Carbon-Enhanced Metal-Poor Star
S. C. Schuler, K. Cunha, V. V. Smith +3
First Stars XIV. Sulfur abundances in extremely metal-poor (EMP) stars
Monique Spite, E. Caffau, S. M. Andrievsky +15
R-process abundances and cosmochronometers in old metal-poor halo stars
B. Pfeiffer, K. -L. Kratz, F. -K. Thielemann +5
Carbon-Enhanced Metal-Poor Stars in the Early Galaxy
B. Marsteller, T. C. Beers, S. Rossi +3
Deep SDSS optical spectroscopy of distant halo stars I. Atmospheric parameters and stellar metallicity distribution
C. Allende Prieto, E. Fernandez-Alvar, K. J. Schlesinger +14
Distances to Galactic high-velocity clouds. Complex C
B. P. Wakker, D. G. York, J. C. Howk +8
The SEGUE Stellar Parameter Pipeline. III. Comparison with High-Resolution Spectroscopy of SDSS/SEGUE Field Stars
C. Allende Prieto, T. Sivarani, T. C. Beers +14
Primordial Lithium and Big Bang Nucleosynthesis
S. G. Ryan, T. C. Beers, K. A. Olive +2
A Spectroscopic Study of the Ancient Milky Way: F- and G-Type Stars in the Third Data Release of the Sloan Digital Sky Survey
C. Allende Prieto, T. C. Beers, R. Wilhelm +4
The role of binaries in the enrichment of the early Galactic halo. II. Carbon-Enhanced Metal-Poor Stars - CEMP-no stars
T. T. Hansen, J. Andersen, B. Nordström +4
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
The Alpha-element knee of the Sagittarius Stream
T. J. L. de Boer, V. Belokurov, T. C. Beers +1
Stellar Archaeology in the Galactic halo with the Ultra-Faint Dwarfs: VI. Ursa Major II
M. Dall'Ora, K. Kinemuchi, V. Ripepi +11
Abundances of carbon-enhanced metal-poor stars as constraints on their formation
C. J. Hansen, B. Nordstroem, T. T. Hansen +6
Chronography of the Milky Way's Halo System with Field Blue Horizontal-Branch Stars
R. M. Santucci, T. C. Beers, V. M. Placco +6
Spectroscopic Studies of Extremly Metal-Poor Stars with Subaru/HDS:II.The r-process Elements, Including Thorium
S. Honda, W. Aoki, T. Kajino +5
The extreme r-element rich, iron-poor halo giant CS31082-001: Implications for the r-process site(s) and radioactive cosmochronology
V. Hill, B. Plez, R. Cayrel +10
HE0107-5240, A Chemically Ancient Star.I. A Detailed Abundance Analysis
N. Christlieb, B. Gustafsson, A. J. Korn +5
First stars XVI. STIS/HST abundances of heavy-elements in the uranium-rich star CS 31082-001
C. Siqueira Mello, M. Spite, B. Barbuy +14