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Results 1 - 73 of 73

The R-Process Alliance: Analysis of Limited-r Stars
- Volume 19, Issue 14 - article #4
- T. Xylakis-Dornbusch, T. T. Hansen, T. C. Beers, N. Christlieb, R. Ezzeddine, A. Frebel, E. Holmbeck, V. M. Placco, I. U. Roederer, C. M. Sakari, C. Sneden
- https://arxiv.org/abs/2404.03379
CUBES: a UV spectrograph for the future. (arXiv:2212.12791v1 [astro-ph.IM])
- Volume 17, Issue 51 - article #1
- S. Covino, S. Cristiani, J. M. Alcala', S. H. P. Alencar, S. A. Balashev, B. Barbuy, N. Bastian, U. Battino, L. Bissell, P. Bristow, A. Calcines, G. Calderone, P. Cambianica, R. Carini, B. Carter, S. Cassisi, B. V. Castilho, G. Cescutti, N. Christlieb, R. Cirami, R. Conzelmann, I. Coretti, R. Cooke, G. Cremonese, K. Cunha, G. Cupani, A.R. da Silva, D. D'Auria, V. De Caprio, A. De Cia, H. Dekker, V. D'Elia, G. De Silva, M. Diaz, P. Di Marcantonio, V. D'Odorico, H. Ernandes, C. Evans, A. Fitzsimmons, M. Franchini, B. Gaensicke, M. Genoni, R. E. Giribaldi, C. Gneiding, A. Grazian, C. J. Hansen, J. Hopgood, J. Kosmalski, F. La Forgia, P. La Penna, M. Landoni, M. Lazzarin, D. Lunney, W. Maciel, W. Marcolino, M. Marconi, A. Migliorini, C. Miller, A. Modigliani, P. Noterdaeme, et al. (29 additional authors not shown)
- http://arxiv.org/abs/2212.12791
TOPoS
- Volume 17, Issue 38 - article #7
- P. Bonifacio, L. Monaco, S. Salvadori, E. Caffau, M. Spite, L. Sbordone, F. Spite, H.-G. Ludwig, P. Di Matteo, M. Haywood, P. FranÃ§ois, A. J. Koch-Hansen, N. Christlieb, S. Zaggia
- Astronomy & Astrophysics
- https://www.aanda.org/10.1051/0004-6361/202140816e
CUBES, the Cassegrain U-Band Efficient Spectrograph. (arXiv:2208.01672v1 [astro-ph.IM])
- Volume 17, Issue 31 - article #3
- S. Cristiani, J. M. Alcalá, S. H. P. Alencar, S. A. Balashev, N. Bastian, B. Barbuy, U. Battino, A. Calcines, G. Calderone, P. Cambianica, R. Carini, B. Carter, S. Cassisi, B. V. Castilho, G. Cescutti, N. Christlieb, R. Cirami, I. Coretti, R. Cooke, S. Covino, G. Cremonese, K. Cunha, G. Cupani, A. R. da Silva, V. De Caprio, A. De Cia, H. Dekker, V. D'Elia, G. De Silva, M.Diaz, P. Di Marcantonio, D. D'Auria, V. D'Odorico, A. Fitzsimmons, H. Ernandes, C. Evans, M. Franchini, M. Genoni, B. Gänsicke, R. E. Giribaldi, C. Gneiding, A. Grazian, C. J. Hansen, F. La Forgia, M. Landoni, M. Lazzarin, D. Lunney, W. Maciel, W. Marcolino, M.Marconi, A. Migliorini, C. Miller, P. Noterdaeme, C. Opitom, G. Pariani, B. Pilecki, S. Piranomonte, A. Quirrenbach, E.M.A. Redaelli, C. B. Pereira, et al. (17 additional authors not shown)
- http://arxiv.org/abs/2208.01672
Barium lines in high-quality spectra of two metal-poor giants in the Galactic halo. (arXiv:2109.00277v1 [astro-ph.SR])
- Volume 16, Issue 36 - article #1
- G. Cescutti, C. Morossi, M. Franchini, P. Di Marcantonio, C. Chiappini, M. Steffen, M. Valentini, P. François, N. Christlieb, C. Cortés, C. Kobayashi, E. Depagne
- http://arxiv.org/abs/2109.00277
Stellar astrophysics in the near UV with VLT-CUBES. (arXiv:2102.02205v1 [astro-ph.IM])
- Volume 16, Issue 6 - article #8
- H. Ernandes, C. J. Evans, B. Barbuy, B. Castilho, G. Cescutti, N. Christlieb, S. Cristiani, G. Cupani, P. Di Marcantonio, M. Franchini, C. Hansen, A. Quirrenbach, R. Smiljanic
- http://arxiv.org/abs/2102.02205
4MOST Consortium Survey 1: The Milky Way Halo Low-Resolution Survey. (arXiv:1903.02467v1 [astro-ph.GA])
- Volume 14, Issue 10 - article #1
- A. Helmi, M. Irwin, A. Deason, E. Balbinot, V. Belokurov, J. Bland-Hawthorn, N. Christlieb, M.-R.L. Cioni, E.K. Grebel, G. Kordopatis, E. Starkenburg, N. Walton, C.C. Worley
- http://arxiv.org/abs/1903.02467
4MOST Consortium Survey 2: The Milky Way Halo High-Resolution Survey. (arXiv:1903.02468v1 [astro-ph.GA])
- Volume 14, Issue 10 - article #2
- N. Christlieb, C. Battistini, P. Bonifacio, E. Caffau, H.-G. Ludwig, M. Asplund, P. Barklem, M. Bergemann, R. Church, D. Ford, E.K. Grebel, C.J. Hansen, A. Helmi, G. Kordopatis, M. Kovalev, A. Korn, K. Lind, A. Quirrenbach, J. Rybizki, Á. Skúladóttir, E. Starkenburg
- http://arxiv.org/abs/1903.02468
4MOST Survey Strategy Plan. (arXiv:1903.02466v1 [astro-ph.IM])
- Volume 14, Issue 10 - article #3
- G. Guiglion, C. Battistini, C.P.M. Bell, T. Bensby, T. Boller, C. Chiappini, J. Comparat, N. Christlieb, R. Church, M.-R.L. Cioni, L. Davies, T. Dwelly, R.S. de Jong, S. Feltzing, A. Gueguen, L. Howes, M. Irwin, I. Kushniruk, M. I Lam, J. Liske, R. McMahon, A. Merloni, P. Norberg, A.S.G. Robotham, O. Schnurr, J.G. Sorce, E. Starkenburg, J. Storm, E. Swann, E. Tempel, W.-F. Thi, C.C. Worley, C.J. Walcher (for the The 4MOST Collaboration)
- http://arxiv.org/abs/1903.02466
TOPoS V: Abundance ratios in a sample of very metal-poor turn-off stars. (arXiv:1811.00035v1 [astro-ph.SR])
- Volume 13, Issue 44 - article #4
- P. François, E. Caffau, P. Bonifacio, M. Spite, F. Spite, R. Cayrel, N. Christlieb, A.J. Gallagher, R. Klessen, A. Koch, H.-G. Ludwig, L. Monaco, B. Plez, M. Steffen, S. Zaggia
- http://arxiv.org/abs/1811.00035
TOPoS: IV. Chemical abundances from high-resolution observations of seven EMP stars. (arXiv:1801.03935v1 [astro-ph.SR])
- Volume 13, Issue 3 - article #7
- P. Bonifacio, E. Caffau, M. Spite, F. Spite, L. Sbordone, L. Monaco, P. François, B. Plez, P. Molaro, A. J. Gallagher, R. Cayrel, N. Christlieb, R. S. Klessen, A. Koch, H.-G. Ludwig, M. Steffen, S. Zaggia, C. Abate
- http://arxiv.org/abs/1801.03935
Galactic Archeology with 4MOST. (arXiv:1708.08884v1 [astro-ph.IM])
- Volume 12, Issue 35 - article #3
- S. Feltzing, T. Bensby, M. Bergemann, C. Chiappini, N. Christlieb, M.R. Cioni, A. Helmi, M. Irwin, I. Minchev, E. Starkenburg, R.de Jong
- http://arxiv.org/abs/1708.08884
The Gaia-ESO Survey: Galactic evolution of sulphur and zinc. (arXiv:1704.02981v1 [astro-ph.SR])
- Volume 12, Issue 15 - article #1
- S. Duffau, E. Caffau, L. Sbordone, P. Bonifacio, S. Andrievsky, S. Korotin, C. Babusiaux, S. Salvadori, L. Monaco, P. Francois, A. Skuladottir, A. Bragaglia, P. Donati, L. Spina, A. J. Gallagher, H.-G. Ludwig, N. Christlieb, C. J. Hansen, A. Mott, M. Steffen, S. Zaggia, S. Blanco-Cuaresma, F. Calura, E. Friel, F. M. Jimenez-Esteban, A. Koch, L. Magrini, E. Pancino, B. Tang, G. Tautvaisiene, A. Vallenari, K. Hawkins, G. Gilmore, S. Randich, S. Feltzing, T. Bensby, E. Flaccomio, R. Smiljanic, A. Bayo, G. Carraro, A.R. Casey, M. T. Costado, F. Damiani, E. Franciosini, A. Hourihane, P. Jofre, C. Lardo, J. Lewis, L. Morbidelli, S. G. Sousa, C. C. Worley
- http://arxiv.org/abs/1704.02981
TOPoS
- Volume 11, Issue 45 - article #20
- E. Caffau, P. Bonifacio, M. Spite, F. Spite, L. Monaco, L. Sbordone, P. FranÃ§ois, A. J. Gallagher, B. Plez, S. Zaggia, H.-G. Ludwig, R. Cayrel, A. Koch, M. Steffen, S. Salvadori, R. Klessen, S. Glover, N. Christlieb
- Astronomy & Astrophysics
- http://feedproxy.google.com/~r/edp_aa/~3/RJ0h5na7TGY/201629776
TOPoS: III. An ultra iron-poor multiple CEMP system. (arXiv:1610.04106v1 [astro-ph.GA])
- Volume 11, Issue 42 - article #7
- E. Caffau, P. Bonifacio, M. Spite, F. Spite, L. Monaco, L. Sbordone, P. Francois, A. J. Gallagher, B. Plez, S. Zaggia, H.-G. Ludwig, R. Cayrel, A. Koch, M. Steffen, S. Salvadori, R. Klessen, S. Glover, N. Christlieb
- http://arxiv.org/abs/1610.04106
Age determination of metal-poor halo stars using nucleochronometry
- Volume 11, Issue 40 - article #11
- N. Christlieb
- John Wiley & Sons, Inc.
- http://onlinelibrary.wiley.com/resolve/doi?DOI=10.1002%2Fasna.201612401
The Hamburg/ESO R-process Enhanced Star survey (HERES) XI. The highly $r$-process-enhanced star CS 29497-004. (arXiv:1608.07463v1 [astro-ph.GA])
- Volume 11, Issue 36 - article #14
- V. Hill, N. Christlieb, T.C. Beers, P.S. Barklem, K.-L. Kratz, B. Nordström, B. Pfeiffer, K. Farouqi
- http://arxiv.org/abs/1608.07463
Stellar science from a blue wavelength range
- Volume 10, Issue 33 - article #12
- C. J. Hansen, H.-G. Ludwig, W. Seifert, A. Koch, W. Xu, E. Caffau, N. Christlieb, A. J. Korn, K. Lind, L. Sbordone, G. Ruchti, S. Feltzing, R. S. de Jong, S. Barden and O. Schnurr
- Astronomische Nachrichten - Volume: 336, Issue: 7
- Abstract PDF(402K)PDF(402K)References Request Permissions
Stellar science from a blue wavelength range - A possible design for the blue arm of 4MOST
- Volume 10, Issue 29 - article #8
- C. J. Hansen, H.-G. Ludwig, W. Seifert, A. Koch, W. Xu, E. Caffau, N. Christlieb, A. J. Korn, K. Lind, L. Sbordone, G. Ruchti, S. Feltzing, R. S. de Jong, S. Barden, O. Schnurr
- arXiv.org - Astrophysics - Volume: 2015, Issue: 14 Aug
- arXiv:1508.02714 [pdf, ps, other]
An Elemental Assay of Very, Extremely, and Ultra-metal-poor Stars
- Volume 10, Issue 26 - article #16
- T. Hansen, C. J. Hansen, N. Christlieb, T. C. Beers, D. Yong, M. S. Bessell, A. Frebel, A. E. GarcÃa PÃ©rez, V. M. Placco, J. E. Norris, and M. Asplund
- The Astrophysical Journal - Volume: 807, Issue: 2
- View article PDF (1.00 MB)
An Elemental Assay of Very, Extremely, and Ultra Metal-Poor Stars
- Volume 10, Issue 22 - article #1
- T. Hansen, C. J. Hansen, N. Christlieb, T. C. Beers, D. Yong, M. S. Bessell, A. Frebel, A. E. Garcia Perez, V. M. Placco, J. E. Norris, M. Asplund
- arXiv.org - Astrophysics - Volume: 2015, Issue: 5 Jun
- arXiv:1506.00579 [pdf, ps, other]
The First Data Release (DR1) of the LAMOST general survey
- Volume 10, Issue 18 - article #13
- A.-L. Luo, Y.-H. Zhao, G. Zhao, L.-C. Deng, X.-W. Liu, Y.-P. Jing, G. Wang, H.-T Zhang, J.-R. Shi, X.-Q. Cui, Y.-Q. Chu, G.-P. Li, Z.-R. Bai, Y. Cai, S.-Y. Cao, Z.-H Cao, J. L. Carlin, H. Y. Chen, J.-J. Chen, K.-X. Chen, L. Chen, X.-L. Chen, X.-Y. Chen, Y. Chen, N. Christlieb, J.-R. Chu, C.-Z. Cui, Y.-Q. Dong, B. Du, D.-W. Fan, L. Feng, J.-N Fu, P. Gao, X.-F. Gong, B.-Z. Gu, Y.-X. Guo, Z.-W. Han, B.-L. He, J.-L. Hou, Y.-H. Hou, W. Hou, H.-Z. Hu, N.-S. Hu, Z.-W. Hu, Z.-Y. Huo, L. Jia, F.-H. Jiang, X. Jiang, Z.-B. Jiang, G. Jin, X. Kong, X. Kong, Y.-J. Lei, A.-H. Li, C.-H. Li, G.-W. Li, H.-N. Li, J. Li, Q. Li, S. Li, S.-S. Li, X.-N. Li, Y. Li, Y.-B. Li, Y.-P. Li, Y. Liang, C.-C. Lin, C. Liu, G.-R. Liu, G.-Q. Liu, Z.-G. Liu, W.-Z. Lu, Y. Luo, Y.-D. Mao, H. Newberg, J.-J. Ni, Z.-X. Qi, Y.-J. Qi, et al. (67 additional authors not shown)
- arXiv.org - Astrophysics - Volume: 2015, Issue: 8 May
- arXiv:1505.01570 [pdf, other]
TOPoS: II. On the bimodality of carbon abundance in CEMP stars. Implications on the early chemical evolution of galaxies
- Volume 10, Issue 16 - article #19
- P. Bonifacio (1), E. Caffau (1,2), M. Spite (2), M. Limongi (3,4), A. Chieffi (5), R.S. Klessen (6,7,8), P. François (1,9), P. Molaro (10), H. G. Ludwig (2,1), S. Zaggia (11), F. Spite (1), B. Plez (12), R. Cayrel (1), N. Christlieb (2), P.C. Clark (13,6), S.C.O. Glover (6), F. Hammer (1), A. Koch (2), L. Monaco (14,15), L. Sbordone (16,17), M. Steffen (18,1) ((1) GEPI, Observatoire de Paris, (2) ZAH-LSW, (3) INAF - OA Roma, (4) Kavli IPMU, Univ. Tokyo (5) INAF - IASFC, (6) ZAH-ARI, (7) Kavli, IPAC, Stanford Univ., (8) Dep A&A Univ, Calfornia, (9) UPJV, Univ. Picardie, (10) INAF - OA Trieste, (11) INAF- OA Padova, (12) LUPM, Univ. Montpellier, (13) School of Physics and Astronomy, Cardiff Univ. (14) ESO, (15) DCF - Univ. A. Bello, (16) MAS, (17) PUC - Chile, (18) Leibniz-Institut AIP)
- arXiv.org - Astrophysics - Volume: 2015, Issue: 24 Apr
- arXiv:1504.05963 [pdf, ps, other]
New Abundances From Very Old Stars
- Volume 10, Issue 10 - article #9
- T. Hansen, C. J. Hansen, N. Christlieb, D. Yong, T. C. Beers, J. Andersen
- arXiv.org - Astrophysics - Volume: 2015, Issue: 13 Mar
- arXiv:1503.01990 [pdf, ps, other]
CH in stellar atmospheres: an extensive linelist
- Volume 9, Issue 24 - article #43
- T. Masseron, B. Plez, S. Van Eck, R. Colin, I. Daoutidis, M. Godefroid, P.-F. Coheur, P. Bernath, A. Jorissen and N. Christlieb
- Astronomy and Astrophysics - Volume: 571, Issue: November 2014
- http://dx.doi.org/10.1051/0004-6361/201423956
  Abstract Full HTML PDF (5.568 MB) ePUB (2.832 MB) References Tables at CDS NASA ADS Abstract Service
Chemical abundances of the metal-poor horizontal-branch stars CS 22186-005 and CS 30344-033
- Volume 9, Issue 24 - article #44
- Å. ÃalÄ±Åkan, E. Caffau, P. Bonifacio, N. Christlieb, L. Monaco, T. C. Beers, B. Albayrak and L. Sbordone
- Astronomy and Astrophysics - Volume: 571, Issue: November 2014
- http://dx.doi.org/10.1051/0004-6361/201424433
  Abstract Full HTML PDF (750.3 KB) ePUB (1.605 MB) References NASA ADS Abstract Service
Chemical abundances of the metal-poor horizontal-branch stars CS 22186-005 and CS 30344-033
- Volume 9, Issue 23 - article #2
- S. Caliskan, E. Caffau, P. Bonifacio, N. Christlieb, L. Monaco, T. C. Beers, B. Albayrak, L. Sbordone
- arXiv.org - Astrophysics - Volume: 2014, Issue: 10 Oct
- arXiv:1410.2189 [pdf, ps, other]
CH in stellar atmospheres: an extensive linelist
- Volume 9, Issue 23 - article #14
- T. Masseron, B. Plez, S. Van Eck, R. Colin, I. Daoutidis, M. Godefroid, P.F. Coheur, P. Bernath, A. Jorissen, N. Christlieb
- arXiv.org - Astrophysics - Volume: 2014, Issue: 17 Oct
- arXiv:1410.4005 [pdf, ps, other]
The Hamburg/ESO R-process Enhanced Star survey (HERES) - X. HE 2252−4225, one more r-process enhanced and actinide-boost halo star
- Volume 9, Issue 23 - article #54
- L. Mashonkina, N. Christlieb and K. Eriksson
- Astronomy and Astrophysics - Volume: 569, Issue: September 2014
- http://dx.doi.org/10.1051/0004-6361/201424017
  Abstract Full HTML PDF (1.180 MB) ePUB (1.762 MB) References Tables at CDS NASA ADS Abstract Service
Stellar abundances and presolar grains trace the nucleosynthetic origin of molybdenum and ruthenium
- Volume 9, Issue 22 - article #67
- C. J. Hansen, A. C. Andersen and N. Christlieb
- Astronomy and Astrophysics - Volume: 568, Issue: August 2014
- http://dx.doi.org/10.1051/0004-6361/201423535
  Abstract Full HTML PDF (970.7 KB) ePUB (1.916 MB) References NASA ADS Abstract Service
The Hamburg/ESO R-process Enhanced Star survey (HERES) - IX. Constraining pure r-process Ba/Eu abundance ratio from observations of r-II stars
- Volume 9, Issue 21 - article #41
- L. Mashonkina and N. Christlieb
- Astronomy and Astrophysics - Volume: 565, Issue: May 2014
- http://dx.doi.org/10.1051/0004-6361/201423651
  Abstract Full HTML PDF (256.4 KB) ePUB (1.522 MB) References Online Material NASA ADS Abstract Service
Exploring the Origin of Lithium, Carbon, Strontium and Barium with four new Ultra Metal-Poor Stars
- Volume 9, Issue 20 - article #76
- T. Hansen, C. J. Hansen, N. Christlieb, D. Yong, M. S. Bessell, A. E. García Pérez, T. C. Beers, V. M. Placco, A. Frebel, J. E. Norris, M. Asplund
- arXiv.org - Astrophysics - Volume: 2014, Issue: 23 May
- arXiv:1405.5846 [pdf, ps, other]
The Hamburg/ESO R-process Enhanced Star survey (HERES) X. HE 2252-4225, one more r-process enhanced and actinide-boost halo star
- Volume 9, Issue 20 - article #86
- L. Mashonkina, N. Christlieb, K. Eriksson
- arXiv.org - Astrophysics - Volume: 2014, Issue: 25 Jul
- arXiv:1407.5379 [pdf, ps, other]
Exploring the Origin of Lithium, Carbon, Strontium, and Barium with Four New Ultra Metal-poor Stars
- Volume 9, Issue 20 - article #184
- T. Hansen, C. J. Hansen, N. Christlieb, D. Yong, M. S. Bessell, A. E. GarcÃa PÃ©rez, T. C. Beers, V. M. Placco, A. Frebel, J. E. Norris, and M. Asplund
- The Astrophysical Journal - Volume: 787, Issue: 2
- View article PDF (483 KB)
TOPoS - I. Survey design and analysis of the first sample
- Volume 8, Issue 51 - article #15
- E. Caffau, P. Bonifacio, L. Sbordone, P. FranÃ§ois, L. Monaco, M. Spite, B. Plez, R. Cayrel, N. Christlieb, P. Clark, et al. (7 more) S. Glover, R. Klessen, A. Koch, H.-G. Ludwig, F. Spite, M. Steffen and S. Zaggia
- Astronomy and Astrophysics - Volume: 560, Issue: December 2013
- http://dx.doi.org/10.1051/0004-6361/201322488
  Abstract Full HTML PDF (308.7 KB) References NASA ADS Abstract Service
The Hamburg/ESO R-process Enhanced Star survey (HERES) VIII. The r+s star HE 1405 0822
- Volume 8, Issue 34 - article #13
- W.Y. Cui, T. Sivarani, N. Christlieb
- arXiv.org - Astrophysics - Volume: 2013, Issue: 23 Aug
- arXiv:1308.4492 [pdf, ps, other]
Carbon-enhanced metal-poor stars: the most pristine objects?
- Volume 8, Issue 16 - article #17
- M. Spite, E. Caffau, P. Bonifacio, F. Spite, H.-G. Ludwig, B. Plez and N. Christlieb
- Astronomy and Astrophysics - Volume: 552, Issue: April 2013
- http://dx.doi.org/10.1051/0004-6361/201220989
  Abstract Full HTML PDF (638.6 KB) References Online Material NASA ADS Abstract Service
Velocity and abundance precisions for future high-resolution spectroscopic surveys: A study for 4MOST
- Volume 8, Issue 10 - article #6
- E. Caffau, A. Koch, L. Sbordone, P. Sartoretti, C.J. Hansen, F. Royer, N. Leclerc, P. Bonifacio, N. Christlieb, H.-G. Ludwig, E.K. Grebel, R.S. de Jong, C. Chiappini, J. Walcher, S. Mignot, S. Feltzing, M. Cohen, I. Minchev, A. Helmi, T. Piffl, E. Depagne and O. Schnurr
- Astronomische Nachrichten - Volume: 334, Issue: 3
- Abstract PDF(368K)References Request Permissions
Fluorine Abundances of Galactic Low-metallicity Giants
- Volume 8, Issue 10 - article #11
- H. N. Li, H.-G. Ludwig, E. Caffau, N. Christlieb, and G. Zhao
- The Astrophysical Journal - Volume: 765, Issue: 1
- Abstract References Full text PDF (475 KB) Enhanced article HTML
Fluorine Abundances of Galactic Low-Metallicity Giants
- Volume 8, Issue 8 - article #3
- H. N. Li, H.-G. Ludwig, E. Caffau, N. Christlieb, G. Zhao
- arXiv.org - Astrophysics - Volume: 2013, Issue: 22 Feb
- arXiv:1302.3928 [pdf, ps, other]
The Most Metal-poor Stars. I. Discovery, Data, and Atmospheric Parameters
- Volume 7, Issue 52 - article #23
- John E. Norris, M. S. Bessell, David Yong, N. Christlieb, P. S. Barklem, M. Asplund, Simon J. Murphy, Timothy C. Beers, Anna Frebel, and S. G. Ryan
- The Astrophysical Journal - Volume: 762, Issue: 1
- Abstract References Cited by Full text PDF (1.31 MB) Enhanced article HTML
The Most Metal-poor Stars. II. Chemical Abundances of 190 Metal-poor Stars Including 10 New Stars with [Fe/H] ≤ –3.5
- Volume 7, Issue 52 - article #24
- David Yong, John E. Norris, M. S. Bessell, N. Christlieb, M. Asplund, Timothy C. Beers, P. S. Barklem, Anna Frebel, and S. G. Ryan
- The Astrophysical Journal - Volume: 762, Issue: 1
- Abstract References Cited by Full text PDF (7.30 MB) Enhanced article HTML
The Most Metal-poor Stars. III. The Metallicity Distribution Function and Carbon-enhanced Metal-poor Fraction
- Volume 7, Issue 52 - article #25
- David Yong, John E. Norris, M. S. Bessell, N. Christlieb, M. Asplund, Timothy C. Beers, P. S. Barklem, Anna Frebel, and S. G. Ryan
- The Astrophysical Journal - Volume: 762, Issue: 1
- Abstract References Full text PDF (724 KB) Enhanced article HTML
The Most Metal-poor Stars. IV. The Two Populations with [Fe/H] lesssim –3.0
- Volume 7, Issue 52 - article #26
- John E. Norris, David Yong, M. S. Bessell, N. Christlieb, M. Asplund, Gerard Gilmore, Rosemary F. G. Wyse, Timothy C. Beers, P. S. Barklem, Anna Frebel, and S. G. Ryan
- The Astrophysical Journal - Volume: 762, Issue: 1
- Abstract References Cited by Full text PDF (1.13 MB) Enhanced article HTML
Silver and palladium help unveil the nature of a second r-process
- Volume 7, Issue 51 - article #56
- C. J. Hansen, F. Primas, H. Hartman, K.-L. Kratz, S. Wanajo, B. Leibundgut, K. Farouqi, O. Hallmann, N. Christlieb and H. Nilsson
- Astronomy and Astrophysics - Volume: 545, Issue: September 2012
- http://dx.doi.org/10.1051/0004-6361/201118643
  Abstract | Full HTML | PDF (1.469 MB) | References | Online Material | SIMBAD record | NASA ADS Abstract Service
The Most Metal-Poor Stars. IV. The Two Populations With [Fe/H] < -3.0
- Volume 7, Issue 46 - article #15
- John E. Norris, David Yong, M. S. Bessell, N. Christlieb, M. Asplund, Gerard Gilmore, Rosemary F.G. Wyse, Timothy C. Beers, P. S. Barklem, Anna Frebel, S. G. Ryan
- arXiv.org - Astrophysics - Volume: 2012, Issue: 16 Nov
- arXiv:1211.3157 [pdf, ps, other]
Velocity and abundance precisions for future high-resolution spectroscopic surveys: a study for 4MOST
- Volume 7, Issue 45 - article #14
- E. Caffau, A. Koch, L. Sbordone, P. Sartoretti, C. J. Hansen, F. Royer, N. Leclerc, P. Bonifacio, N. Christlieb, H. G. Ludwig, E. K. Grebel, R. S. de Jong, C. Chiappini, J. Walcher, S. Mignot, S. Feltzing, M. Cohen, I. Minchev, A. Helmi, T. Piffl, E. Depagne, O. Schnurr
- arXiv.org - Astrophysics - Volume: 2012, Issue: 9 Nov
- arXiv:1211.1406 [pdf, ps, other]
The Most Metal-Poor Stars. I. Discovery, Data, and Atmospheric Parameters
- Volume 7, Issue 33 - article #12
- John E. Norris, M. S. Bessell, David Yong, N. Christlieb, P. S. Barklem, M. Asplund, Simon J. Murphy, Timothy C. Beers, Anna Frebel, S. G. Ryan
- arXiv.org - Astrophysics - Volume: 2012, Issue: 17 Aug
- arXiv:1208.2999 [pdf, ps, other]
The Most Metal-Poor Stars. II. Chemical Abundances of 190 Metal-Poor Stars Including 10 New Stars With [Fe/H] < -3.5
- Volume 7, Issue 33 - article #13
- David Yong, John E. Norris, M. S. Bessell, N. Christlieb, M. Asplund, Timothy C. Beers, P. S. Barklem, Anna Frebel, S. G. Ryan
- arXiv.org - Astrophysics - Volume: 2012, Issue: 17 Aug
- arXiv:1208.3003 [pdf, ps, other]
The Most Metal-Poor Stars. III. The Metallicity Distribution Function and CEMP Fraction
- Volume 7, Issue 33 - article #14
- David Yong, John E. Norris, M. S. Bessell, N. Christlieb, M. Asplund, Timothy C. Beers, P. S. Barklem, Anna Frebel, S. G. Ryan
- arXiv.org - Astrophysics - Volume: 2012, Issue: 17 Aug
- arXiv:1208.3016 [pdf, ps, other]
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)
- Volume 7, Issue 29 - article #3
- J. Ren, N. Christlieb, G. Zhao
- arXiv.org - Astrophysics - Volume: 2012, Issue: 20 Jul
- arXiv:1207.4536 [pdf, ps, other]
Lithium abundances in CEMP stars
- Volume 7, Issue 11 - article #11
- T. Masseron, J. A. Johnson, S. Lucatello, A. Karakas, B. Plez, T. C. Beers, N. Christlieb
- arXiv.org - Astrophysics - Volume: 2012, Issue: 16 Mar
- arXiv:1203.3295 [pdf, ps, other]
Abundance analysis of the outer halo globular cluster Palomar 14
- Volume 6, Issue 43 - article #3
- S. Caliskan, N. Christlieb, K. E. Grebel
- arXiv.org - Astrophysics - Volume: 2011, Issue: 28 Oct
- arXiv:1110.5151 [pdf, ps, other]
The Hamburg/ESO R-process Enhanced Star survey (HERES) VI. The Galactic Chemical Evolution of Silicon
- Volume 5, Issue 26 - article #11
- L. Zhang, N. Christlieb, A. J. Korn, P. S. Barklem, T. Karlsson, G. Zhao
- arXiv.org - Astrophysics - Volume: 2010, Issue: 25 Jun
- arXiv:1006.3594 [pdf, ps, other]
The stellar content of the Hamburg/ESO survey VI. The metallicity distribution of main-sequence turnoff stars in the Galactic halo
- Volume 5, Issue 26 - article #12
- H. N. Li, N. Christlieb, T. Schörck, J. E. Norris, M. S. Bessell, D. Yong, T. C. Beers, Y. S. Lee, A. Frebel, G. Zhao
- arXiv.org - Astrophysics - Volume: 2010, Issue: 25 Jun
- arXiv:1006.3985 [pdf, ps, other]
The metal-poor end of the Spite plateau. 1: Stellar parameters, metallicities and lithium abundances
- Volume 5, Issue 13 - article #19
- L. Sbordone (1 and 2 and 3), P. Bonifacio (1 and 2 and 4), E. Caffau (2), H.-G. Ludwig (1 and 2 and 5), N. T. Behara (1 and 2 and 6), J. I. Gonzalez Hernandez (1 and 2 and 7), M. Steffen (8), R. Cayrel (9), B. Freytag (9), C. Van't Veer (2), P. Molaro (4), B. Plez (10), T. Sivarani (11), M. Spite (2), F. Spite (2), T. C. Beers (12), N. Christlieb (5), P. Francois (2), V. Hill (2 and 13) ((1) CIFIST Marie Curie Excellence Team, (2) GEPI - Observatoire de Paris France, (3) Max Planck Institute for Astrophysics Garching Germany, (4) INAF - Oss. Trieste Italy, (5) Landessternwarte Heidelberg Germany, (6) Universite' Libre de Bruxelles Belgium, (7) Universidad Complutense de Madrid Spain, (8) Astrophysikalische Institut Pottsdam Germany, (9) Ecole Normale Superieure de Lyon France, (10) Universite' Montpellier France, (11) Indian Institute for Astrophysiscs Bangalore India, (12) Michigan State University USA, (13) Observatoire de la Cote d'Azur Nice France)
- arXiv.org - Astrophysics - Volume: 2010, Issue: 26 Mar
- arXiv:1003.4510 [pdf, ps, other]
The Hamburg/ESO R-process Enhanced Star survey (HERES). V. Detailed abundance analysis of the r-process enhanced star HE 2327-5642
- Volume 5, Issue 12 - article #13
- L. Mashonkina, N. Christlieb, P.S. Barklem, V. Hill, T.C. Beers, A. Velichko
- arXiv.org - Astrophysics - Volume: 2010, Issue: 19 Mar
- arXiv:1003.3571 [ps, pdf, other]
The stellar content of the Hamburg/ESO survey - V. The metallicity distribution function of the Galactic halo
- Volume 4, Issue 47 - article #26
- T. Schörck, N. Christlieb, J. G. Cohen, T. C. Beers, S. Shectman, I. Thompson, A. McWilliam, M. S. Bessell, J. E. Norris, J. Meléndez, S. Ramírez, D. Haynes, P. Cass, M. Hartley, K. Russell, F. Watson, F.-J. Zickgraf, B. Behnke, C. Fechner, B. Fuhrmeister, P. S. Barklem, B. Edvardsson, A. Frebel, L. Wisotzki, and D. Reimers
- Astronomy and Astrophysics - Volume: 507, Issue: 2
- Abstract | PDF file (506.8 KB) | PS file (331.7 KB)
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
- Volume 4, Issue 41 - article #20
- W. Hayek, U. Wiesendahl, N. Christlieb, K. Eriksson, A.J. Korn, P.S. Barklem, V. Hill, T.C. Beers, K. Farouqi, B. Pfeiffer, K.-L. Kratz
- arXiv.org - Astrophysics - Volume: 2009, Issue: 9 Oct
- arXiv:0910.0707 [ps, pdf, other]
High-resolution UVES/VLT spectra of white dwarfs observed for the ESO SN Ia Progenitor Survey - III. DA white dwarfs
- Volume 4, Issue 40 - article #15
- D. Koester, B. Voss, R. Napiwotzki, N. Christlieb, D. Homeier, T. Lisker, D. Reimers, and U. Heber
- Astronomy and Astrophysics - Volume: 505, Issue: 1
- Abstract | PDF file (792.2 KB) | PS file (1.022 MB)
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
- Volume 4, Issue 38 - article #26
- W. Hayek, U. Wiesendahl, N. Christlieb, K. Eriksson, A. J. Korn, P. S. Barklem, V. Hill, T. C. Beers, K. Farouqi, B. Pfeiffer, and K.-L. Kratz
- Astronomy and Astrophysics - Volume: 504, Issue: 2
- Abstract | PDF file (381.6 KB) | PS file (295.9 KB)
High-resolution UVES/VLT spectra of white dwarfs observed for the ESO SN Ia Progenitor Survey. III. DA white dwarfs
- Volume 4, Issue 34 - article #16
- D. Koester, B. Voss, R. Napiwotzki, N. Christlieb, D. Homeier, T. Lisker, D. Reimers, U. Heber
- arXiv.org - Astrophysics - Volume: 2009, Issue: 21 Aug
- arXiv:0908.2322 [ps, pdf, other]
The stellar content of the Hamburg/ESO survey. V. The metallicity distribution function of the Galactic halo
- Volume 3, Issue 37 - article #10
- T. Schoerck, N. Christlieb, J.G. Cohen, T.C. Beers, S. Shectman, I. Thompson, A. McWilliam, M.S. Bessell, J.E. Norris, J. Melendez, S. Solange Ramirez, D. Haynes, P. Cass, M. Hartley, K. Russell, F. Watson, F.-J. Zickgraf, B. Behnke, C. Fechner, B. Fuhrmeister, P.S. Barklem, B. Edvardsson, A. Frebel, L. Wisotzki, D. Reimers
- arXiv.org - Astrophysics - Volume: 2008, Issue: 11 Sep
- arXiv:0809.1172 [ps, pdf, other]
The stellar content of the Hamburg/ESO survey - IV. Selection of candidate metal-poor stars
- Volume 3, Issue 23 - article #24
- N. Christlieb, T. Schörck, A. Frebel, T. C. Beers, L. Wisotzki, and D. Reimers
- Astronomy and Astrophysics - Volume: 484, Issue: 3
- Abstract | PDF file (571.7 KB) | PS file (396.5 KB)
The stellar content of the Hamburg/ESO survey. IV. Selection of candidate metal-poor stars
- Volume 3, Issue 15 - article #10
- N. Christlieb (1,2), T. Schoerck (2), A. Frebel (3), T.C. Beers (4), L. Wisotzki (5), D. Reimers (2) ((1) Uppsala University, (2) University of Hamburg, Hamburger Sternwarte, (3) McDonald Observatory, (4) Michigan State University, (5) Astrophysical Institute Potsdam)
- arXiv.org - Astrophysics - Volume: 2008, Issue: 10 Apr
- arXiv:0804.1520 [ps, pdf, other]
HE 0557-4840: Ultra–Metal-Poor and Carbon-Rich
- Volume 2, Issue 46 - article #11
- John E. Norris, N. Christlieb, A. J. Korn, K. Eriksson, M. S. Bessell, Timothy C. Beers, L. Wisotzki, and D. Reimers
- The Astrophysical Journal - Volume: 670, Issue: 1
- ABSTRACT | FULL TEXT WITH ENHANCEMENTS | PDF (563 kB) | PS
HE 0557-4840 - Ultra-Metal-Poor and Carbon-Rich
- Volume 2, Issue 29 - article #17
- John E. Norris, N. Christlieb, A. J. Korn, K. Eriksson, M. S. Bessell, Timothy C. Beers, L. Wisotzki, D. Reimers
- ArXiv - Astrophysics
- arXiv:0707.2657 [ps, pdf, other]
High-Resolution Spectra Observed for SPY. II. DB and DBA Stars
- Volume 2, Issue 25 - article #11
- B. Voss, D. Koester, R. Napiwotzki, N. Christlieb, D. Reimers
- ArXiv - Astrophysics
- arXiv:0706.2936 [ps, pdf, other]
Bright Metal-Poor Stars from the Hamburg/ESO Survey. I. Selection and Follow-up Observations from 329 Fields
- Volume 1, Issue 29 - article #3
- A. Frebel, N. Christlieb, J. E. Norris, T. C. Beers, M. S. Bessell, J. Rhee, C. Fechner, B. Marsteller, S. Rossi, C. Thom, L. Wisotzki, D. Reimers
- ArXiv - Astrophysics
- astro-ph/0608332 [abs, ps, pdf, other]
The Hamburg/ESO R-process enhanced star survey (HERES) - III. HE 0338-3945 and the formation of the r + s stars
- Volume 1, Issue 15 - article #28
- K. Jonsell, P. S. Barklem, B. Gustafsson, N. Christlieb, V. Hill, T. C. Beers and J. Holmberg
- Astronomy and Astrophysics - Volume 451, Issue 2 - May, 2006
- Abstract, Full HTML, PDF file (410 KB), PS file (164 KB), References
HE 1327-2326, an Unevolved Star with [Fe/H] < -5.0. I. A Comprehensive Abundance Analysis
- Volume 1, Issue 7 - article #2
- W. Aoki, A. Frebel, N. Christlieb, J. E. Norris, T. C. Beers, T. Minezaki, P. S. Barklem, S. Honda, M. Takada-Hidai, M. Asplund, S. G. Ryan, S. Tsangarides, K. Eriksson, A. Steinhauer, C. P. Deliyannis, K. Nomoto, M. Y. Fujimoto, H. Ando, Y. Yoshii, and T. Kajino
- ABSTRACT, FULL TEXT, PDF (604 kB), PS
The Galactic Nature of High-Velocity Cloud Complex WB
- Volume 1, Issue 3 - article #5
- C. Thom, M. E. Putman, B. K. Gibson, N. Christlieb, C. Flynn, T. C. Beers, R. Wilhelm, and Y. S. Lee
- Astrophysical Journal Letters - Volume 638, Issue 2 - February, 2006
- ABSTRACT, FULL TEXT, PDF (206 kB), PS
The Hamburg/ESO R-process Enhanced Star survey (HERES) III. HE 0338-3945 and the formation of the r+s stars
- Volume 1, Issue 1 - article #46
- K. Jonsell (1), P. S. Barklem (1), B. Gustafsson (1), N. Christlieb (2), V. Hill (3), T. C. Beers (4), J. Holmberg (5) ((1) Uppsala, (2) Hamburg, (3) Paris Meudon, (4) Michigan State, (5) Tuorla)
- ArXiv - Astrophysics
- astro-ph/0601476 [abs, ps, pdf, other] :

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