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Results 1 - 76 of 76

TOPoS V: Abundance ratios in a sample of very metal-poor turn-off stars. (arXiv:1811.00035v1 [astro-ph.SR])
- Virtual Journal - Volume 16, Issue 44 - article #12
- 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])
- Virtual Journal - Volume 16, Issue 3 - article #16
- 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
The Gaia-ESO Survey: Galactic evolution of sulphur and zinc. (arXiv:1704.02981v1 [astro-ph.SR])
- Virtual Journal - Volume 15, Issue 15 - article #7
- 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
- Virtual Journal - Volume 14, Issue 45 - article #12
- E. Caffau, P. Bonifacio, M. Spite, F. Spite, L. Monaco, L. Sbordone, P. FranÃƒÂ§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])
- Virtual Journal - Volume 14, Issue 42 - article #17
- 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
- Virtual Journal - Volume 14, Issue 40 - article #24
- 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])
- Virtual Journal - Volume 14, Issue 36 - article #25
- 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
Does the chemical signature of TYC 8442-1036-1 originate from a rotating massive star that died in a faint explosion?. (arXiv:1608.03455v1 [astro-ph.SR])
- Virtual Journal - Volume 14, Issue 33 - article #5
- G. Cescutti, M. Valentini, P. François, C. Chiappini, E. Depagne, N. Christlieb, C. Cortés
- http://arxiv.org/abs/1608.03455
An Elemental Assay of Very, Extremely, and Ultra-metal-poor Stars
- Virtual Journal - Volume 13, Issue 26 - article #46
- T. Hansen, C. J. Hansen, N. Christlieb, T. C. Beers, D. Yong, M. S. Bessell, A. Frebel, A. E. GarcÃƒÂa PÃƒÂ©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
- Virtual Journal - Volume 13, Issue 22 - article #2
- 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
- Virtual Journal - Volume 13, Issue 18 - article #10
- 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
- Virtual Journal - Volume 13, Issue 16 - article #21
- 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
- Virtual Journal - Volume 13, Issue 10 - article #6
- 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
- Virtual Journal - Volume 12, Issue 24 - article #87
- 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
- Virtual Journal - Volume 12, Issue 24 - article #88
- Ã…Âž. ÃƒÂ‡alÃ„Â±Ã…ÂŸkan, 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
- Virtual Journal - Volume 12, 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]
The Hamburg/ESO R-process Enhanced Star survey (HERES) - X. HE 2252âˆ’4225, one more r-process enhanced and actinide-boost halo star
- Virtual Journal - Volume 12, Issue 23 - article #116
- 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
- Virtual Journal - Volume 12, Issue 22 - article #100
- 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
- Virtual Journal - Volume 12, Issue 21 - article #104
- 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
- Virtual Journal - Volume 12, 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
- Virtual Journal - Volume 12, 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
- Virtual Journal - Volume 12, Issue 20 - article #270
- T. Hansen, C. J. Hansen, N. Christlieb, D. Yong, M. S. Bessell, A. E. GarcÃƒÂa PÃƒÂ©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
- Virtual Journal - Volume 11, Issue 51 - article #18
- E. Caffau, P. Bonifacio, L. Sbordone, P. FranÃƒÂ§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
- Virtual Journal - Volume 11, Issue 34 - article #16
- 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?
- Virtual Journal - Volume 11, Issue 16 - article #21
- 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
- Virtual Journal - Volume 11, Issue 10 - article #19
- 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
- Virtual Journal - Volume 11, Issue 10 - article #23
- 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
- Virtual Journal - Volume 11, 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
- Virtual Journal - Volume 10, Issue 52 - article #50
- 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] ≤ â€“3.5
- Virtual Journal - Volume 10, Issue 52 - article #51
- 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
- Virtual Journal - Volume 10, Issue 52 - article #52
- 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 â€“3.0
- Virtual Journal - Volume 10, Issue 52 - article #53
- 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
- Virtual Journal - Volume 10, Issue 51 - article #61
- 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
- Virtual Journal - Volume 10, Issue 46 - article #11
- 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
- Virtual Journal - Volume 10, Issue 45 - article #15
- 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
- Virtual Journal - Volume 10, Issue 33 - article #11
- 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
- Virtual Journal - Volume 10, Issue 33 - article #12
- 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
- Virtual Journal - Volume 10, 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:1208.3016 [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)
- Virtual Journal - Volume 10, 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
- Virtual Journal - Volume 10, Issue 11 - article #10
- 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
- Virtual Journal - Volume 9, Issue 43 - article #4
- 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
- Virtual Journal - Volume 8, Issue 26 - article #24
- 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
- Virtual Journal - Volume 8, Issue 26 - article #25
- 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
- Virtual Journal - Volume 8, Issue 13 - article #9
- 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
- Virtual Journal - Volume 8, Issue 12 - article #8
- 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
- Virtual Journal - Volume 7, Issue 47 - article #27
- 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
- Virtual Journal - Volume 7, Issue 41 - article #17
- 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
- Virtual Journal - Volume 7, Issue 40 - article #23
- 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
- Virtual Journal - Volume 7, Issue 38 - 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, 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
- Virtual Journal - Volume 7, Issue 34 - article #13
- 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
- Virtual Journal - Volume 6, Issue 37 - article #9
- 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]
HE 0557-4840: Ultra–Metal-Poor and Carbon-Rich
- Virtual Journal - Volume 5, Issue 46 - article #8
- 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
- Virtual Journal - Volume 5, 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]
Bright Metal-Poor Stars from the Hamburg/ESO Survey. I. Selection and Follow-up Observations from 329 Fields
- Virtual Journal - Volume 4, Issue 33 - article #11
- 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
- Virtual Journal - Volume 4, Issue 18 - article #23
- 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
- Virtual Journal - Volume 4, Issue 10 - article #1
- 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 Hamburg/ESO R-process Enhanced Star survey (HERES) III. HE 0338-3945 and the formation of the r+s stars
- Virtual Journal - Volume 4, Issue 4 - article #26
- 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] :
The Galactic Nature of High Velocity Cloud Complex WB
- Virtual Journal - Volume 4, Issue 2 - article #14
- C. Thom (Swinburne), M. E. Putman (UMich), B. K. Gibson (Swinburne), N. Christlieb (Hamburg), C. Flynn (Tuorla Obs), T. C. Beers (MSU), R. Wilhelm (Texas Tech), Y.S. Lee (MSU)
- ArXiv - Astrophysics
- astro-ph/0601139 [abs, ps, pdf, other]
The new record holder for the most iron-poor star: HE 1327-2326, a dwarf or subgiant with [Fe/H]=-5.4
- Virtual Journal - Volume 3, Issue 38 - article #9
- A. Frebel, W. Aoki, N. Christlieb, H. Ando, M. Asplund, P.S. Barklem, T. C. Beers, K. Eriksson, C. Fechner, M.Y. Fujimoto, S. Honda, T. Kajino, T. Minezaki, K. Nomoto, J.E. Norris, S.G. Ryan, M. Takada-Hidai, S. Tsangarides, Y. Yoshii
- ArXiv - Astrophysics – September 2005
- astro-ph/0509658 [ abs , ps , pdf , other ]
HE1327-2326, an unevolved star with [Fe/H]<-5.0. I. A Comprehensive Abundance Analysis
- Virtual Journal - Volume 3, Issue 36 - article #6
- 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, T. Kajino
- ArXiv - Astrophysics – September 2005
The Hamburg/ESO R-process enhanced star survey (HERES) - II. Spectroscopic analysis of the survey sample
- Virtual Journal - Volume 3, Issue 30 - article #22
- P. S. Barklem, N. Christlieb, T. C. Beers, V. Hill, M. S. Bessell, J. Holmberg, B. Marsteller, S. Rossi, F.-J. Zickgraf and D. Reimers
- Astronomy and Astrophysics - Vol. 439 No. 1 – July 2005
- Abstract , Full HTML , PDF file (2.26 MB) , PS file (532 KB) , References , Online Material
Efficient Searches for r -Process-Enhanced, Metal-Poor Stars
- Virtual Journal - Volume 3, Issue 26 - article #95
- T.C. Beers, P.S. Barklem, N. Christlieb and V. Hill
- Nuclear Physics A – Vol. 758 – July 2005
- Abstract , Abstract + References , PDF (121 K)
Carbon-Enhanced Metal-Poor Stars in the Early Galaxy
- Virtual Journal - Volume 3, Issue 25 - article #124
- B. Marsteller, T.C. Beers, S. Rossi, N. Christlieb, M. Bessell and J. Rhee
- Nuclear Physics A – Vol. 758 – June 2005
- Abstract , Abstract + References , PDF (173 K)
The Hamburg/ESO R-process Enhanced Star survey (HERES) II. Spectroscopic analysis of the survey sample
- Virtual Journal - Volume 3, Issue 18 - article #10
- P. S. Barklem (Uppsala), N. Christlieb (Hamburg), T. C. Beers (Michigan State), V. Hill (Paris Meudon), J. Holmberg (Tuorla), B. Marsteller (Michigan State), S. Rossi (Sao Paulo), F.-J. Zickgraf (Hamburg)
- arXiv – Astrophysics – May 2005
- astro-ph/0505050 [ abs , ps , pdf , other ]
The stellar content of the Hamburg/ESO survey - III. Field horizontal-branch stars in the Galaxy
- Virtual Journal - Volume 3, Issue 5 - article #16
- N. Christlieb, T. C. Beers, C. Thom, R. Wilhelm, S. Rossi, C. Flynn, L. Wisotzki and D. Reimers
- Astronomy and Astrophysics – Vol 431, No 1 – February 2005
- Abstract , Full HTML , PDF file (557 KB) , PS file (177 KB) , References
The Hamburg/ESO R-process Enhanced Star survey (HERES) - I. Project description, and discovery of two stars with strong enhancements of neutron-capture elements
- Virtual Journal - Volume 2, Issue 49 - article #32
- N. Christlieb, T. C. Beers, P. S. Barklem, M. Bessell, V. Hill, J. Holmberg, A. J. Korn, B. Marsteller, L. Mashonkina, Y.-Z. Qian, S. Rossi, G. J. Wasserburg, F.-J. Zickgraf, K.-L. Kratz, B. NordstrÃ¶m, B. Pfeiffer, J. Rhee and S. G. Ryan
- Astronomy and Astrophysics – Vol 428, No 3 – December 2004
- Abstract , PDF file (306 KB) , PS file (112 KB)
The stellar content of the Hamburg/ESO survey. III. Field horizontal-branch stars in the Galaxy
- Virtual Journal - Volume 2, Issue 45 - article #1
- N. Christlieb, T.C. Beers, C. Thom, R. Wilhelm, S. Rossi, C. Flynn, L. Wisotzki, D. Reimers
- arXiv - Astrophysics – November 2004
- astro-ph/0411300 [ abs , ps , pdf , other ]
The Hamburg/ESO R-process Enhanced Star survey (HERES). I. Project description, and discovery of two stars with strong enhancements of neutron-capture elements
- Virtual Journal - Volume 2, Issue 34 - article #22
- N. Christlieb, T. C. Beers, P. S. Barklem, M. Bessell, V. Hill, J. Holmberg, A.J. Korn, B. Marsteller, L. Mashonkina, Y.-Z. Qian, S. Rossi, G.J. Wasserburg, F.-J. Zickgraf, K.-L. Kratz, B. Nordstr{Ã¶}m, B. Pfeiffer, J. Rhee, S.G. Ryan
- arXiv - Astrophysics - August 2004
- astro-ph/0408389 [ abs , ps , pdf , other ]
Efficient Searches for r-Process-Enhanced, Metal-Poor Stars
- Virtual Journal - Volume 2, Issue 34 - article #24
- T.C. Beers (1), P.S. Barklem (2), N. Christlieb (3), V. Hill (4) ((1) Michigan State Univ., (2) Uppsala Univ., Sweden, (3) Hamburger Sternwarte, Germany, (4) Observatorie de Paris Meudon, France)
- arXiv - Astrophysics - August 2004
- astro-ph/0408381 [ abs , ps , pdf , other ]
Carbon-Enhanced Metal-Poor Stars in the Early Galaxy
- Virtual Journal - Volume 2, Issue 34 - article #25
- B. Marsteller (1), T.C. Beers (1), S. Rossi (2), N. Christlieb (3), M. Bessell (4), J. Rhee (5) ((1) Michigan State University, (2) IAG, Univ. of Sao Paulo, Brazil, (3) Hamburger Sternwarte, Germany, (4) Australian National University, Australia, (5) Center for Space Astrophysics, Korea, and Space Astrophysics Laboratory, Caltech)
- arXiv - Astrophysics - August 2004
- astro-ph/0408380 [ abs , ps , pdf , other ]
On the Oxygen Abundance of HE 0107-5240
- Virtual Journal - Volume 2, Issue 32 - article #26
- M. S. Bessell, N. Christlieb, and B. Gustafsson
- Astrophysical Journal Letters – Vol 612, No. 1 – August 2004
- ABSTRACT , FULL TEXT , PDF (54 kB), PS
Double degenerates and progenitors of supernovae type Ia
- Virtual Journal - Volume 2, Issue 12 - article #3
- R. Napiwotzki, L. Yungelson, G. Nelemans, T. R. Marsh, B. Leibundgut, A. Renzini, D. Homaier, D. Koester, S. Moehler, N. Christlieb, D. Reimers, H. Drechsel, U. Heber, C. Karl, E.-M. Pauli
- arXiv.org – Astrophysics – March 2004
- astro-ph/0403595 [ abs , ps , pdf , other ]
HE 0107-5240, a Chemically Ancient Star. I. A Detailed Abundance Analysis
- Virtual Journal - Volume 2, Issue 10 - article #37
- N. Christlieb, B. Gustafsson, A. J. Korn, P. S. Barklem, T. C. Beers, M. S. Bessell, T. Karlsson, and M. Mizuno-Wiedner
- The Astrophysical Journal - Volume 603, Number 2, Part 1
- ABSTRACT , FULL TEXT , PDF (757 kB), PS
On the oxygen abundance of HE0107-5240
- Virtual Journal - Volume 2, Issue 3 - article #6
- M.S. Bessell (RSAA/ANU), N. Christlieb (Hamburger Sternwarte), B. Gustafsson (Uppsala Astronomical Observatory)
- arXiv.org – Astrophysics - January 2004
- astro-ph/0401450 [ abs , ps , pdf , other ]
HE0107-5240, A Chemically Ancient Star.I. A Detailed Abundance Analysis
- Virtual Journal - Volume 1, Issue 18 - article #23
- N. Christlieb(Uppsala Astronomical Observatory and Hamburger Sternwarte), B. Gustafsson(Uppsala Astronomical Observatory), A. J. Korn(Universitaets-Sternwarte Muenchen and Uppsala Astronomical Observatory), P. S. Barklem(Uppsala Astronomical Observatory),T. C. Beers(Department of Physics and Astronomy, Michigan State University), M. S. Bessell(Research School of Astronomy and Astrophysics, Australian National University),T. Karlsson, M. Mizuno-Wiedner (Uppsala Astronomical Observatory)
- arXiv.org - Astrophysics - Mon, 10 Nov 2003
- astro-ph/0311173 [ abs , ps , pdf , other ]
Spectroscopic analysis of sdB stars from the ESO Supernova Ia Progenitor Survey
- Virtual Journal - Volume 1, Issue 16 - article #20
- T. Lisker(1), U. Heber(1), R. Napiwotzki(1), N. Christlieb(2), D. Reimers(2), D. Homeier(3) ((1) Dr. Remeis Sternwarte, Bamberg, Germany, (2) Hamburger Sternwarte, Hamburg, Germany, (3) University of Georgia, Athens, USA)
- arXiv.org - Astrophysics - Thu, 30 Oct 2003
- astro-ph/0310816 [ abs , ps , pdf , other ]

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