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Results 1 - 86 of 86

Metal-poor stars observed with the Magellan Telescope. IV. Neutron-capture element signatures in 27 main-sequence stars. (arXiv:2305.05363v1 [astro-ph.GA])
- Virtual Journal - Volume 21, Issue 19 - article #4
- Mohammad K. Mardini, Anna Frebel, Leyatt Betre, Heather Jacobson, John E. Norris, Norbert Christlieb
- http://arxiv.org/abs/2305.05363
Understanding the early stages of galaxy formation using very metal-poor stars from the Hamburg/ESO survey. (arXiv:2212.08294v1 [astro-ph.GA])
- Virtual Journal - Volume 20, Issue 50 - article #2
- Daniela Carollo, Norbert Christlieb, Patricia B. Tissera, Emanuel Sillero
- http://arxiv.org/abs/2212.08294
OBSERVATIONAL CONSTRAINTS ON FIRST-STAR NUCLEOSYNTHESIS. II. SPECTROSCOPY OF AN ULTRA METAL-POOR CEMP-NO STAR
- Virtual Journal - Volume 14, Issue 50 - article #22
- Vinicius M. Placco, Anna Frebel, Timothy C. Beers, Jinmi Yoon, Anirudh Chiti, Alexander Heger, Conrad Chan, Andrew R. Casey,, Norbert Christlieb
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/833/1/21
Observational Constraints on First-Star Nucleosynthesis. II. Spectroscopy of an Ultra Metal-Poor CEMP-no Star. (arXiv:1609.02134v1 [astro-ph.SR])
- Virtual Journal - Volume 14, Issue 37 - article #17
- Vinicius M. Placco, Anna Frebel, Timothy C. Beers, Jinmi Yoon, Anirudh Chiti, Alexander Heger, Conrad Chan, Andrew R. Casey, Norbert Christlieb
- http://arxiv.org/abs/1609.02134
The Chemical Abundances of Stars in the Halo (CASH) Project. III. A New Classification Scheme for Carbon-enhanced Metal-poor Stars with s-process Element Enhancement
- Virtual Journal - Volume 13, Issue 45 - article #35
- Julie K. Hollek, Anna Frebel, Vinicius M. Placco, Amanda I. Karakas, Matthew Shetrone, Christopher Sneden, and Norbert Christlieb
- The Astrophysical Journal - Volume: 814, Issue: 2
- View article PDF (1.65 MB)
The Chemical Abundances of Stars in the Halo (CASH) Project. III. A New Classification Scheme for Carbon-Enhanced Metal-poor Stars with S-process Element Enhancement
- Virtual Journal - Volume 13, Issue 40 - article #17
- Julie K. Hollek (UT/JINA), Anna Frebel (MIT/JINA), Vinicius M. Placco (U Notre Dame/JINA), Amanda I. Karakas (ANU), Matthew Shetrone (UT/McDonald Obs.), Christopher Sneden (UT), Norbert Christlieb (Heidelberg)
- arXiv.org - Astrophysics - Volume: 2015, Issue: 30 Oct
- arXiv:1510.06825 [pdf, ps, other]
Discovery of a strongly r-process enhanced extremely metal-poor star LAMOST J110901.22+075441.8
- Virtual Journal - Volume 13, Issue 23 - article #18
- Haining Li, Wako Aoki, Satoshi Honda, Gang Zhao, Norbert Christlieb, Takuma Suda
- arXiv.org - Astrophysics - Volume: 2015, Issue: 19 Jun
- arXiv:1506.05200 [pdf, ps, other]
High-resolution spectroscopic studies of ultra metal-poor stars found in LAMOST survey
- Virtual Journal - Volume 13, Issue 23 - article #21
- Haining Li, Wako Aoki, Gang Zhao, Satoshi Honda, Norbert Christlieb, Takuma Suda
- arXiv.org - Astrophysics - Volume: 2015, Issue: 19 Jun
- arXiv:1506.05684 [pdf, ps, other]
Spectroscopic Analysis of Metal-poor Stars from LAMOST: Early Results
- Virtual Journal - Volume 13, Issue 8 - article #16
- Hai-Ning Li, Gang Zhao, Norbert Christlieb, Liang Wang, Wei Wang, Yong Zhang, Yonghui Hou, and Hailong Yuan
- The Astrophysical Journal - Volume: 798, Issue: 2
- View article PDF (749 KB)
Spectroscopic analysis of metal-poor stars from LAMOST: early results
- Virtual Journal - Volume 13, Issue 2 - article #12
- Hai-Ning Li, Gang Zhao, Norbert Christlieb, Liang Wang, Wei Wang, Yong Zhang, Yonghui Hou, Hailong Yuan
- arXiv.org - Astrophysics - Volume: 2015, Issue: 16 Jan
- arXiv:1501.03062 [pdf, ps, other]
Stellar abundances and presolar grains trace the nucleosynthetic origin of molybdenum and ruthenium
- Virtual Journal - Volume 12, Issue 20 - article #97
- Camilla J. Hansen, Anja C. Andersen, Norbert Christlieb
- arXiv.org - Astrophysics - Volume: 2014, Issue: 27 Jun
- arXiv:1406.6686 [pdf, ps, other]
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 14 - article #13
- Lyudmila Mashonkina, Norbert Christlieb
- arXiv.org - Astrophysics - Volume: 2014, Issue: 4 Apr
- arXiv:1404.0511 [pdf, ps, other]
Metal-poor Stars Observed with the Magellan Telescope. II. Discovery of Four Stars with [Fe/H] ≤ â€“3.5
- Virtual Journal - Volume 12, Issue 4 - article #43
- Vinicius M. Placco, Anna Frebel, Timothy C. Beers, Norbert Christlieb, Young Sun Lee, Catherine R. Kennedy, Silvia Rossi, and Rafael M. Santucci
- The Astrophysical Journal - Volume: 781, Issue: 1
- View article PDF (1.00 MB)
Metal-Poor Stars Observed with the Magellan Telescope II. Discovery of Four Stars with [Fe/H] < -3.5
- Virtual Journal - Volume 11, Issue 48 - article #7
- Vinicius M. Placco, Anna Frebel, Timothy C. Beers, Norbert Christlieb, Young Sun Lee, Catherine R. Kennedy, Silvia Rossi, Rafael M. Santucci
- arXiv.org - Astrophysics - Volume: 2013, Issue: 2 Dec
- arXiv:1311.5855 [pdf, ps, other]
Normal and Outlying Populations of the Milky Way Stellar Halo at [Fe/H] < -2
- Virtual Journal - Volume 11, Issue 41 - article #11
- Judith Cohen, Norbert Christlieb, Ian Thompson, Andrew McWilliam, Stephen Shectman, Dieter Reimers, Lutz Wisotzki, Evan Kirby
- arXiv.org - Astrophysics - Volume: 2013, Issue: 11 Oct
- arXiv:1310.1527 [pdf, ps, other]
Metal-poor Stars Observed with the Magellan Telescope. I. Constraints on Progenitor Mass and Metallicity of AGB Stars Undergoing s-process Nucleosynthesis
- Virtual Journal - Volume 11, Issue 23 - article #46
- Vinicius M. Placco, Anna Frebel, Timothy C. Beers, Amanda I. Karakas, Catherine R. Kennedy, Silvia Rossi, Norbert Christlieb, and Richard J. Stancliffe
- The Astrophysical Journal - Volume: 770, Issue: 2
- Abstract References Full text PDF (2.07 MB) Enhanced article HTML
Metal-Poor Stars Observed with the Magellan Telescope I. Constraints on Progenitor Mass and Metallicity of AGB Stars Undergoing s-Process Nucleosynthesis
- Virtual Journal - Volume 11, Issue 18 - article #4
- Vinicius M. Placco, Anna Frebel, Timothy C. Beers, Amanda I. Karakas, Catherine R. Kennedy, Silvia Rossi, Norbert Christlieb, Richard J. Stancliffe
- arXiv.org - Astrophysics - Volume: 2013, Issue: 3 May
- arXiv:1304.7869 [pdf, ps, other]
Carbon-enhanced metal-poor stars: the most pristine objects?
- Virtual Journal - Volume 11, Issue 10 - article #4
- Monique Spite (GEPI), E. Caffau (GEPI, ZAH), Piercarlo Bonifacio (GEPI), François Spite (GEPI), H.-G. Ludwig (GEPI, ZAH), Bertrand PLEZ (LUPM), Norbert Christlieb (ZAH)
- arXiv.org - Astrophysics - Volume: 2013, Issue: 8 Mar
- arXiv:1303.1791 [pdf, ps, other]
An Algorithm for Preferential Selection of Spectroscopic Targets in LEGUE
- Virtual Journal - Volume 10, Issue 25 - article #5
- Jeffrey L. Carlin, Sebastien Lepine, Heidi Jo Newberg, Licai Deng, Timothy C. Beers, Yuqin Chen, Norbert Christlieb, Xiaoting Fu, Shuang Gao, Carl J. Grillmair, Puragra Guhathakurta, Zhanwen Han, Jinliang Hou, Hsu-Tai Lee, Jing Li, Chao Liu, Xiaowei Liu, Kaike Pan, J. A. Sellwood, Hongchi Wang, Fan Yang, Brian Yanny, Yueyang Zhang, Zheng Zheng, Zi Zhu
- arXiv.org - Astrophysics - Volume: 2012, Issue: 22 Jun
- arXiv:1206.3577 [pdf, ps, other]
LAMOST Experiment for Galactic Understanding and Exploration (LEGUE) The survey science plan
- Virtual Journal - Volume 10, Issue 25 - article #11
- Licai Deng, Heidi Jo Newberg, Chao Liu, Jeffrey L. Carlin, Timothy C. Beers, Li Chen, Yuqin Chen, Norbert Christlieb, Carl J. Grillmair, Puragra Guhathakurta, Zhanwen Han, Jinliang Hou, Tsu-Tai Lee, Sébastien Lépine, Jing Li, Xiaowei Liu, Kaike Pan, J. A. Sellwood, Hongchi Wang, Fan Yang, Brian Yanny, Haotong Zhang, Yueyang Zhang, Zheng Zheng, Zi Zhu
- arXiv.org - Astrophysics - Volume: 2012, Issue: 22 Jun
- arXiv:1206.3578 [pdf, ps, other]
The LEGUE High Latitude Bright Survey Design for the LAMOST Pilot Survey
- Virtual Journal - Volume 10, Issue 25 - article #18
- Yueyang Zhang, Jeffrey L. Carlin, Fan Yang, Chao Liu, Licai Deng, Heidi Jo Newberg, Haotong Zhang, Sebastien Lepine, Yan Xu, Shuang Gao, Norbert Christlieb, Zhanwen Han, Jinliang Hou, Hsutai Lee, Xiaowei Liu, Kaike Pan, Hongchi Wang
- arXiv.org - Astrophysics - Volume: 2012, Issue: 22 Jun
- arXiv:1206.3575 [pdf, ps, other]
The LEGUE Input Catalogue for Dark Night Observing in the LAMOST Pilot Survey
- Virtual Journal - Volume 10, Issue 25 - article #19
- Fan Yang, Jeffrey L. Carlin, Chao Liu, Yueyang Zhang, Shuang Gao, Yan Xu, Licai Deng, Heidi Jo Newberg, Sebastien Lepine, Jinliang Hou, Xiaowei Liu, Norbert Christlieb, Haotong Zhang, Hsutai Lee, Kaike Pan, Zhanwen Han, Hongchi Wang
- arXiv.org - Astrophysics - Volume: 2012, Issue: 22 Jun
- arXiv:1206.3576 [pdf, ps, other]
The selection of LEGUE disk targets for LAMOST's pilot survey
- Virtual Journal - Volume 10, Issue 25 - article #23
- Li Chen, Jinliang Hou, Jincheng Yu, Chao Liu, Licai Deng, Heidi Jo Newberg, Jeffrey L. Carlin, Fan Yang, Yueyang Zhang, Shiyin Shen, Haotong Zhang, Jianjun Chen, Yuqing Chen, Norbert Christlieb, Zhanwen Han, Hsu-Tai Lee, Xiaowei Liu, Kaike Pan, Jianrong Shi, Hongchi Wang, Zi Zhu
- arXiv.org - Astrophysics - Volume: 2012, Issue: 22 Jun
- arXiv:1206.3378 [pdf, ps, other]
The site conditions of the Guo Shou Jing Telescope
- Virtual Journal - Volume 10, Issue 25 - article #24
- Song Yao, Chao Liu, Haotong Zhang, Licai Deng, Heidi Jo Newberg, Yueyang Zhang, Jing Li, Nian Liu, Xu Zhou, Jeffrey L. Carlin, Li Chen, Norbert Christlieb, Shuang Gao, Zhanwen Han, Jinliang Hou, Hsu-Tai Lee, Xiaowei Liu, Kaike Pan, Hongchi Wang, Yan Xu, Fan Yang
- arXiv.org - Astrophysics - Volume: 2012, Issue: 22 Jun
- arXiv:1206.3574 [pdf, ps, other]
Silver and palladium help unveil the nature of a second r-process
- Virtual Journal - Volume 10, Issue 21 - article #11
- Camilla Juul Hansen, Francesca Primas, Henrik Hartman, Karl-Ludwig Kratz, Shinya Wanajo, Bruno Leibundgut, Khalil Farouqi, Oliver Hallmann, Norbert Christlieb, Hampus Nilsson
- arXiv.org - Astrophysics - Volume: 2012, Issue: 25 May
- arXiv:1205.4744 [pdf, ps, other]
Lithium Abundances in Carbon-enhanced Metal-poor Stars
- Virtual Journal - Volume 10, Issue 20 - article #30
- Thomas Masseron, Jennifer A. Johnson, Sara Lucatello, Amanda Karakas, Bertrand Plez, Timothy C. Beers, and Norbert Christlieb
- The Astrophysical Journal - Volume: 751, Issue: 1
- Abstract References Full text PDF (1.01 MB) View as HTML
The Hamburg/ESO R-process Enhanced Star survey (HERES)VII. Thorium abundances in metal-poor stars
- Virtual Journal - Volume 9, Issue 52 - article #13
- Jing Ren, Norbert Christlieb, Gang Zhao
- arXiv.org - Astrophysics - Volume: 2011, Issue: 30 Dec
- arXiv:1112.4870 [pdf, ps, other]
The Hamburg/ESO R-process Enhanced Star survey (HERES)VII. Thorium abundances in metal-poor stars
- Virtual Journal - Volume 9, Issue 51 - article #18
- Jin Ren, Norbert Christlieb, Gang Zhao
- arXiv.org - Astrophysics - Volume: 2011, Issue: 23 Dec
- arXiv:1112.4870 [pdf, ps, other]
Searches for Metal-Poor Stars from the Hamburg/ESO Survey using the CH G-band
- Virtual Journal - Volume 9, Issue 38 - article #18
- Vinicius M. Placco, Catherine R. Kennedy, Timothy C. Beers, Norbert Christlieb, Silvia Rossi, Thirupathi Sivarani, Young Sun Lee, Dieter Reimers, Lutz Wisotzki
- arXiv.org - Astrophysics - Volume: 2011, Issue: 23 Sep
- arXiv:1109.3993 [pdf, ps, other]
A Status Report on the 0Z Project
- Virtual Journal - Volume 9, Issue 18 - article #3
- Judith G. Cohen, Norbert Christlieb, Andrew McWilliam, Stephen Shectman, Ian Thompson
- arXiv.org - Astrophysics - Volume: 2011, Issue: 6 May
- arXiv:1105.1126 [pdf, ps, other]
[O/Fe] Estimates for Carbon-enhanced Metal-poor Stars from Near-infrared Spectroscopy
- Virtual Journal - Volume 9, Issue 7 - article #28
- Catherine R. Kennedy, Thirupathi Sivarani, Timothy C. Beers, Young Sun Lee, Vinicius M. Placco, Silvia Rossi, Norbert Christlieb, Falk Herwig and Bertrand Plez
- Astronomical Journal - Volume: 141, Issue: 3
- doi: 10.1088/0004-6256/141/3/102 Tag this article
[O/Fe] Estimates for Carbon-Enhanced Metal-Poor Stars from Near-IR Spectroscopy
- Virtual Journal - Volume 9, Issue 2 - article #10
- Catherine R. Kennedy, Thirupathi Sivarani, Timothy C. Beers, Young Sun Lee, Vinicius M. Placco, Silvia Rossi, Norbert Christlieb, Falk Herwig, Bertrand Plez
- arXiv.org - Astrophysics - Volume: 2011, Issue: 14 Jan
- arXiv:1101.2260 [pdf, ps, other]
A Search for Unrecognized Carbon-Enhanced Metal-Poor Stars in the Galaxy
- Virtual Journal - Volume 8, Issue 7 - article #19
- <em >Vinicius M. Placco, Catherine R. Kennedy, Silvia Rossi, Timothy C. Beers, Young Sun Lee, Norbert Christlieb, Thirupathi Sivarani, Dieter Reimers, and Lutz Wisotzki</em&gt,
- Astronomical Journal - Volume: 139, Issue: 3
- Abstract | References
A Search for Unrecognized Carbon-Enhanced Metal-Poor Stars in the Galaxy
- Virtual Journal - Volume 8, Issue 3 - article #2
- Vinicius M. Placco, Catherine R. Kennedy, Silvia Rossi, Timothy C. Beers, Young Sun Lee, Norbert Christlieb, Thirupathi Sivarani, Dieter Reimers, Lutz Wisotzki
- arXiv.org - Astrophysics - Volume: 2010, Issue: 15 Jan
- arXiv:1001.2512 [ps, pdf, other]
Lithium Abundances of Extremely Metal-Poor Turnoff Stars
- Virtual Journal - Volume 7, Issue 24 - article #26
- Wako Aoki, Paul S. Barklem, Timothy C. Beers, Norbert Christlieb, Susumu Inoue, Ana E. García Pérez, John E. Norris, and Daniela Carollo
- The Astrophysical Journal - Volume: 698, Issue: 2
- Abstract | References
The End of Nucleosynthesis: Production of Lead and Thorium in the Early Galaxy
- Virtual Journal - Volume 7, Issue 24 - article #29
- <em >Ian U. Roederer, Karl-Ludwig Kratz, Anna Frebel, Norbert Christlieb, Bernd Pfeiffer, John J. Cowan, and Christopher Sneden</em&gt,
- The Astrophysical Journal - Volume: 698, Issue: 2
- Abstract | References
The End of Nucleosynthesis: Production of Lead and Thorium in the Early Galaxy
- Virtual Journal - Volume 7, Issue 17 - article #4
- Ian U. Roederer (University of Texas), Karl-Ludwig Kratz (Max-Planck-Institut fur Chemie), Anna Frebel (Harvard-Smithsonian Center for Astrophysics), Norbert Christlieb (Zentrum fur Astronomie der Universitat Heidelberg), Bernd Pfeiffer (Max-Planck-Institut fur Chemie), John J. Cowan (University of Oklahoma), Christopher Sneden (University of Texas)
- arXiv.org - Astrophysics - Volume: 2009, Issue: 24 Apr
- arXiv:0904.3105 [ps, pdf, other]
Lithium Abundances of Extremely Metal-Poor Turn-off Stars
- Virtual Journal - Volume 7, Issue 15 - article #4
- Wako Aoki, Paul S. Barklem, Timothy C. Beers, Norbert Christlieb, Susumu Inoue, Ana E. Garcia Perez, John E. Norris, Daniela Carollo
- arXiv.org - Astrophysics - Volume: 2009, Issue: 10 Apr
- arXiv:0904.1448 [ps, pdf, other]
A high-resolution spectral analysis of three carbon-enhanced metal-poor stars
- Virtual Journal - Volume 6, Issue 36 - article #77
- Aruna Goswami, Wako Aoki, Timothy C. Beers, Norbert Christlieb, John E. Norris, Sean G., Ryan and Stelios Tsangarides
- Monthly Notices of the Royal Astronomical Society - Volume: 372, Issue: 1
- Abstract | References | Full Text HTML | Full Text PDF (720 KB) | Rights and Permissions
HE 1327−2326, an Unevolved Star with [Fe/H]<−5.0. II. New 3D−1D Corrected Abundances from a Very Large Telescope UVES Spectrum
- Virtual Journal - Volume 6, Issue 35 - article #24
- Anna Frebel, Remo Collet, Kjell Eriksson, Norbert Christlieb, and Wako Aoki
- The Astrophysical Journal - Volume: 684, Issue: 1
- Abstract-Full Text-PDF Version (1019 kB)
New Extremely Metal‐Poor Stars in the Galactic Halo
- Virtual Journal - Volume 6, Issue 2 - article #23
- Judith G. Cohen, Norbert Christlieb, Andrew McWilliam, Stephen Shectman, Ian Thompson, Jorge Melendez, Lutz Wisotzki, and Dieter Reimers
- The Astrophysical Journal - Volume: 672, Issue: 1
- Abstract-Full Text-PDF Version (486 kB)
Nuclear Physics in Astrophysics III Organising and International Advisory Committees
Full text Full text: Acrobat PDF (77.1 KB)

PAPERS
BIG BANG NUCLEOSYNTHESIS 014001Constraints on Big Bang Nucleosynthesis from observations of metal-poor stars

Virtual Journal - Volume 5, Issue 51 - article #59
Norbert Christlieb

Journal of Physics G - Volume: 35, Issue: 1

Abstract | References

New Extremely Metal-Poor Stars in the Galactic Halo

Virtual Journal - Volume 5, Issue 36 - article #16
Judith G. Cohen, Norbert Christlieb, Andrew McWilliam, Stephen Shectman, Ian Thompson, Jorge Melendez, Lutz Wisotzki, Dieter Reimers

ArXiv - Astrophysics

arXiv:0709.0029 [ps, pdf, other]

New Extremely Metal-Poor Stars in the Galactic Halo

Virtual Journal - Volume 5, Issue 35 - article #13
Judith G. Cohen, Norbert Christlieb, Andrew McWilliam, Stephen Shectman, Ian Thompson, Jorge Melendez, Lutz Wisotzki, Dieter Reimers

ArXiv - Astrophysics

arXiv:0709.0029 [ps, pdf, other]

Chemical Abundance Analysis of the Extremely Metal-poor Star HE 1300+0157

Virtual Journal - Volume 5, Issue 12 - article #5
Anna Frebel, John E. Norris, Wako Aoki, Satoshi Honda, Michael S. Bessell, Masahide Takada-Hidai, Timothy C. Beers, and Norbert Christlieb

The Astrophysical Journal - Volume658, Issue 1

ABSTRACT, FULL TEXT, PDF (569 kB), PS

Chemical Abundance Analysis of the Extremely Metal-poor Star HE 1300+0157

Virtual Journal - Volume 5, Issue 11 - article #9
Anna Frebel, John E. Norris, Wako Aoki, Satoshi Honda, Michael S. Bessell, Masahide Takada-Hidai, Timothy C. Beers, and Norbert Christlieb

The Astrophysical Journal - Volume658, Issue 1

ABSTRACT, FULL TEXT, PDF (569 kB), PS

Discovery of HE 1523-0901, a Strongly r-Process Enhanced Metal-Poor Star with Detected Uranium

Virtual Journal - Volume 5, Issue 11 - article #30
Anna Frebel, Norbert Christlieb, John E. Norris, Christopher Thom, Timothy C. Beers, Jaehyon Rhee

ArXiv - Astrophysics

astro-ph/0703414 [abs, ps, pdf, other]

A New Type of Extremely Metal Poor Star

Virtual Journal - Volume 5, Issue 11 - article #39
Judith G. Cohen, Andrew McWilliam, Norbert Christlieb, Stephen Shectman, Ian Thompson, Jorge Melendez, Lutz Wisotzki, Dieter Reimers

ArXiv - Astrophysics

astro-ph/0703341 [abs, ps, pdf, other]

Carbon-enhanced Metal-poor Stars. I. Chemical Compositions of 26 Stars

Virtual Journal - Volume 5, Issue 3 - article #2
Wako Aoki, Timothy C. Beers, Norbert Christlieb, John E. Norris, Sean G. Ryan, and Stelios Tsangarides

The Astrophysical Journal - Volume655, Issue 1

ABSTRACT, FULL TEXT WITH ENHANCEMENTS, PDF (555 kB), PS

Broadband UBVR_CI_C Photometry of Horizontal-Branch and Metal-poor Candidates from the HK and Hamburg/ESO Surveys. I.

Virtual Journal - Volume 5, Issue 2 - article #1
Timothy C. Beers, Chris Flynn, Silvia Rossi, Jesper Sommer-Larsen, Ronald Wilhelm, Brian Marsteller, Young Sun Lee, Nathan De Lee, Julie Krugler, Constantine P. Deliyannis, Andrew T. Simmons, Elisabeth Mills, Franz-Josef Zickgraf, Johan Holmberg, Anna ÃƒÂ–nehag, Anders Eriksson, Donald M. Terndrup, Samir Salim, Johannes Andersen, Birgitta NordstrÃƒÂ¶m, Norbert Christlieb, Anna Frebel, and Jaehyon Rhee

The Astrophysical Journal Supplement - Volume168, Issue 1

ABSTRACT, FULL TEXT WITH ENHANCEMENTS, PDF (340 kB), PS

Chemical Abundance Analysis of the Extremely Metal-Poor Star HE 1300+0157

Virtual Journal - Volume 4, Issue 49 - article #14
Anna Frebel, John E. Norris, Wako Aoki, Satoshi Honda, Michael S. Bessell, Masahide Takada-Hidai, Timothy C. Beers, Norbert Christlieb

ArXiv - Astrophysics

astro-ph/0612160 [abs, ps, pdf, other]

A high-resolution spectral analysis of three carbon-enhanced metal-poor stars

Virtual Journal - Volume 4, Issue 44 - article #29
Aruna Goswami, Wako Aoki, Timothy C. Beers, Norbert Christlieb, John E. Norris, Sean G. Ryan, Stelios Tsangarides

Monthly Notices of the Royal Astronomical Society - Volume 372, Issue 372

Abstract Abstract and References Full Text Article PDF [720KB]

A high-resolution spectral analysis of three carbon-enhanced metal-poor stars

Virtual Journal - Volume 4, Issue 43 - article #27
Aruna Goswami, Wako Aoki, Timothy C. Beers, Norbert Christlieb, John E. Norris, Sean G. Ryan, Stelios Tsangarides

Monthly Notices of the Royal Astronomical Society - Volume 372, Issue 372

Abstract Abstract and References Full Text Article PDF [720KB]

A high-resolution spectral analysis of three carbon-enhanced metal-poor stars

Virtual Journal - Volume 4, Issue 42 - article #21
Aruna Goswami, Wako Aoki, Timothy C. Beers, Norbert Christlieb, John E. Norris, Sean G. Ryan, Stelios Tsangarides

Monthly Notices of the Royal Astronomical Society - Volume 372, Issue 372

Abstract Abstract and References Full Text Article PDF [720KB]

A high-resolution spectral analysis of three carbon-enhanced metal-poor stars

Virtual Journal - Volume 4, Issue 41 - article #38
Aruna Goswami, Wako Aoki, Timothy C. Beers, Norbert Christlieb, John E. Norris, Sean G. Ryan, Stelios Tsangarides

Monthly Notices of the Royal Astronomical Society - Volume 372, Issue 372

Abstract Abstract and References Full Text Article PDF [720KB]

Broadband UBVRI Photometry of Horizontal-Branch and Metal-Poor Candidates from the HK and Hamburg/ESO Surveys. I

Virtual Journal - Volume 4, Issue 40 - article #11
Timothy C. Beers, Chris Flynn, Silvia Rossi, Jesper Sommer-Larsen, Ronald Wilhelm, Brian Marsteller, YoungSun Lee, Nathan De Lee, Julie Krugler, Constantine P. Deliyannis, Franz-Josef Zickgraf, Johan Holmberg, Anna Onehag, Anders Eriksson, Donald M. Terndrup, Samir Salim, Johannes Andersen, Birgitta Nordstrom, Norbert Christlieb, Anna Frebel

ArXiv - Astrophysics

astro-ph/0610018 [abs, ps, pdf, other]

A high-resolution spectral analysis of three carbon-enhanced metal-poor stars

Virtual Journal - Volume 4, Issue 40 - article #26
Aruna Goswami, Wako Aoki, Timothy C. Beers, Norbert Christlieb, John E. Norris, Sean G. Ryan, Stelios Tsangarides

Monthly Notices of the Royal Astronomical Society - Volume 372, Issue 372

Abstract Abstract and References Full Text Article PDF [720KB]

The Frequency of Carbon-Enhanced Metal-Poor Stars in the Galaxy from the HERES sample

Virtual Journal - Volume 4, Issue 39 - article #9
Sara Lucatello (INAF-OAPD), Timothy Beers (MSU/JINA), Norbert Christlieb (Hamburger Sternewarte and Uppsala University), Paul Barklem (Uppsala Univesity), Silvia Rossi (Universidade de Sao Paulo), Brian Marsteller (MSU), Thirupathi Sivarani (MSU), Young Sun Lee (MSU)

ArXiv - Astrophysics

astro-ph/0609730 [abs, ps, pdf, other]

Carbon Enhanced Metal-Poor Stars. I. Chemical Compositions of 26 Stars

Virtual Journal - Volume 4, Issue 39 - article #11
Wako Aoki, Timothy C. Beers, Norbert Christlieb, John E. Norris, Sean G. Ryan, Stelios Tsangarides

ArXiv - Astrophysics

astro-ph/0609702 [abs, ps, pdf, other]

A high-resolution spectral analysis of three carbon-enhanced metal-poor stars

Virtual Journal - Volume 4, Issue 39 - article #21
Aruna Goswami, Wako Aoki, Timothy C. Beers, Norbert Christlieb, John E. Norris, Sean G. Ryan, Stelios Tsangarides

Monthly Notices of the Royal Astronomical Society - Volume 372, Issue 372

Abstract Abstract and References Full Text Article PDF [720KB]

A Search for Nitrogen-Enhanced Metal-Poor Stars

Virtual Journal - Volume 4, Issue 35 - article #11
Jennifer A. Johnson (DAO/HIA/NRC), Falk Herwig (LANL), Timothy C. Beers (MSU/JINA), Norbert Christlieb (Hamburg)

ArXiv - Astrophysics

astro-ph/0608666 [abs, ps, pdf, other]

A high-resolution spectral analysis of three carbon-enhanced metal-poor stars

Virtual Journal - Volume 4, Issue 32 - article #12
Aruna Goswami, Wako Aoki, Timothy C. Beers, Norbert Christlieb, John E. Norris, Sean G. Ryan, Stelios Tsangarides

ArXiv - Astrophysics

astro-ph/0608106 [abs, ps, pdf, other]

CARBON STARS IN THE HAMBURG/ESO SURVEY: ABUNDANCES

Virtual Journal - Volume 4, Issue 26 - article #23
Judith G. Cohen, Andrew McWilliam, Stephen Shectman, Ian Thompson, Norbert Christlieb, Jorge Melendez, Solange Ramirez, Amber Swensson, and Franz-Josef Zickgraf

Astronomical Journal - Volume 132, Issue 1

Abstract Full Text with Enhancements PDF (416 kB)

Carbon Stars in the Hamburg/ESO Survey: Abundances

Virtual Journal - Volume 4, Issue 12 - article #23
Judith G. Cohen, Andrew McWilliam, Stephen Shectman, Ian Thompson, Norbert Christlieb, Jorge Melendez, Solange Ramirez, Amber Swensson, Franz-Josef Zickgraf

ArXiv - Astrophysics

astro-ph/0603582 [abs, ps, pdf, other]

The Oxygen Abundance of HE 1327-2326

Virtual Journal - Volume 4, Issue 5 - article #48
Anna Frebel, Norbert Christlieb, John E. Norris, Wako Aoki, and Martin Asplund

The Astrophysical Journal Letters - Volume638, Issue 1

ABSTRACT, FULL TEXT, PDF (81 kB), PS

The Oxygen Abundance of HE 1327-2326

Virtual Journal - Volume 4, Issue 4 - article #28
Anna Frebel, Norbert Christlieb, John E. Norris, Wako Aoki, and Martin Asplund

The Astrophysical Journal Letters - Volume638, Issue 1

ABSTRACT, FULL TEXT, PDF (81 kB), PS

The Oxygen Abundance of HE 1327-2326

Virtual Journal - Volume 3, Issue 52 - article #11
Anna Frebel, Norbert Christlieb, John E. Norris, Wako Aoki, Martin Asplund

ArXiv – Astrophysics – December 2005

astro-ph/0512543 [abs, ps, pdf, other]

The Oxygen Abundance of HE 1327-2326

Virtual Journal - Volume 3, Issue 51 - article #4
Anna Frebel, Norbert Christlieb, John E. Norris, Wako Aoki, Martin Asplund

ArXiv – Astrophysics – December 2005

astro-ph/0512543 [abs, ps, pdf, other]

HE 0437-5439 -- an unbound hyper-velocity main-sequence B-type star

Virtual Journal - Volume 3, Issue 45 - article #5
Heinz Edelmann, Ralf Napiwotzki, Uli Heber, Norbert Christlieb, Dieter Reimers

ArXiv – Astrophysics – November 2005

astro-ph/0511321 [abs, ps, pdf, other]

The Frequency of Carbon Stars among Extremely Metal-poor Stars

Virtual Journal - Volume 3, Issue 44 - article #24
Judith G. Cohen, Stephen Shectman, Ian Thompson, Andrew McWilliam, Norbert Christlieb, Jorge Melendez, Franz-Josef Zickgraf, Solange RamÃrez, and Amber Swenson

Astrophysical Jounral Letters – Vol. 633, No. 2 – November 2005

ABSTRACT, FULL TEXT WITH ENHANCEMENTS, PDF (220 kB), PS

The Frequency of Carbon Stars Among Extremely Metal-Poor Stars

Virtual Journal - Volume 3, Issue 40 - article #11
Judith G. Cohen, Stephen Shectman, Ian Thompson, Andrew McWilliam, Norbert Christlieb, Jorge Melendez, Franz-Josef Zickgraf, Solange Ramirez, Amber Swenson

ArXiv - Astrophysics – October 2005

astro-ph/0510105 [abs, ps, pdf, other]

THE DISCOVERY AND ANALYSIS OF VERY METAL-POOR STARS IN THE GALAXY

Virtual Journal - Volume 3, Issue 34 - article #6
Timothy C. Beers, Norbert Christlieb

Annual Review of Astronomy and Astrophysics – Vol. 43 – August 2005

Abstract , Full Text , PDF (720 KB)

The Metallicity Distribution Function of the Halo of the Milky Way

Virtual Journal - Volume 3, Issue 34 - article #26
Timothy C. Beers (1), Norbert Christlieb (2), John E. Norris (3), Michael S. Bessell (3), Ronald Wilhelm (4), Carlos Allende Prieto (5), Brian Yanny (6), Constance Rockosi (7), Heidi Jo Newberg (8), Silvia Rossi (9), Young Sun Lee (1) ((1) Dept. of Physics & Astronomy and JINA -- Joint Institute for Nuclear Astrophysics, Michigan State, (2) Hamburger Sternwarte, Univesitat Hamburg, (3) RSAA, Australian National University, (4) Texas Tech, (5) McDonald Observatory, University of Texas, (6) FermiLab, (7) UC Santa Cruz, (8) Rensselaer Polytechnic University, (9)IAG, University of Sao Paolo)

ArXiv - Astrophysics – August 2005

astro-ph/0508423 [ abs , ps , pdf , other ]

The Frequency of Carbon Rich Stars Among Extremely Metal Poor Stars

Virtual Journal - Volume 3, Issue 26 - article #4
Judith G. Cohen, Stephen Shectman, Ian Thompson, Andrew McWilliam, Norbert Christlieb, Jorge Melendez, Franz-Josef Zickgraf, Solange RamÃrez, Amber Swenson

ArXiv - Astrophysics – July 2005

astro-ph/0506745 [ abs , ps , pdf , other ]

A Catalogue of Field Horizontal Branch Stars Aligned with High Velocity Clouds

Virtual Journal - Volume 3, Issue 26 - article #22
Christopher Thom (Swinburne), Brad K. Gibson (Swinburne), Norbert Christlieb (Hamburger Sternwarte)

ArXiv - Astrophysics – July 2005

astro-ph/0506633 [ abs , ps , pdf , other ]

Nitrogen in the Early Universe

Virtual Journal - Volume 3, Issue 25 - article #105
Jennifer A. Johnson, Falk Herwig, Timothy C. Beers and Norbert Christlieb

Nuclear Physics A – Vol. 758 – June 2005

Abstract , Abstract + References , PDF (301 K)

Kinematics of the Galactic halo from horizontal branch stars in the Hamburg/ESO survey

Virtual Journal - Volume 3, Issue 22 - article #23
Christopher Thom, Chris Flynn, Michael S. Bessell, Jyrki HÃ¤nninen, Timothy C. Beers, Norbert Christlieb, Dionne James, Johan Holmberg, Brad K. Gibson

Monthly Notices of the Royal Astronomical Society - Vol. 360 Issue 1 – June 2005

ABSTRACT , FULL TEXT

Nucleosynthetic signatures of the first stars

Virtual Journal - Volume 3, Issue 15 - article #39
ANNA FREBEL, WAKO AOKI, NORBERT CHRISTLIEB, HIROYASU ANDO, MARTIN ASPLUND, PAUL S. BARKLEM, TIMOTHY C. BEERS, KJELL ERIKSSON, CORA FECHNER, MASAYUKI Y. FUJIMOTO, SATOSHI HONDA, TOSHITAKA KAJINO, TAKEO MINEZAKI, KEN'ICHI NOMOTO, JOHN E. NORRIS, SEAN G. RYAN, MASAHIDE TAKADA-HIDAI, STELIOS TSANGARIDES & YUZURU YOSHII

Nature - Vol 434 No 7035 – April 2005

First paragraph , Full text , PDF (181k), N&V

Kinematics of the Galactic Halo from Horizontal Branch stars in the Hamburg/ESO Survey

Virtual Journal - Volume 3, Issue 14 - article #32
Christopher Thom, Chris Flynn, Michael S. Bessell, Jyrki Hanninen, Timothy C. Beers, Norbert Christlieb, Dionne James, Johan Holmberg, Brad K. Gibson

arXiv - Astrophysics – April 2005

astro-ph/0504058 [ abs , ps , pdf , other ]

Nucleosynthetic signatures of the first stars

Virtual Journal - Volume 3, Issue 9 - article #10
Anna Frebel, Wako Aoki, Norbert Christlieb, Hiroyasu Ando, Martin Asplund, Paul S. Barklem, Timothy C. Beers, Kjell Eriksson, Cora Fechner, Masayuki Y. Fujimoto, Satoshi Honda, Toshitaka Kajino, Takeo Minezaki, Ken`ichi Nomoto, John E. Norris, Sean G. Ryan, Masahide Takada-Hidai, Stelios Tsangarides, Yuzuru Yoshii

arXiv - Astrophysics – March 2005

astro-ph/0503021 [ abs , ps , pdf , other ]

Abundances In Very Metal-Poor Dwarf Stars

Virtual Journal - Volume 2, Issue 37 - article #30
Judith G. Cohen, Norbert Christlieb, Andrew McWilliam, Steve Shectman, Ian Thompson, G. J. Wasserburg, Inese Ivans, Matthias Dehn, Torgny Karlsson, and J. Melendez

Astrophysical Journal – Vol 612, No 2 – September 2004

ABSTRACT , FULL TEXT WITH ENHANCEMENTS , PDF (637 kB), PS

Oxygen Overabundance in the Extremely Iron-poor Star CS 29498-043

Virtual Journal - Volume 2, Issue 23 - article #41
Wako Aoki, John E. Norris, Sean G. Ryan, Timothy C. Beers, Norbert Christlieb, Stelios Tsangarides, and Hiroyasu Ando

Astrophysical Journal – Volume 608 Number 1 – June 2004

ABSTRACT , FULL TEXT WITH ENHANCEMENTS , PDF (179 kB), PS

Abundances In Very Metal Poor Dwarf Stars

Virtual Journal - Volume 2, Issue 20 - article #16
Judith G. Cohen, Norbert Christlieb, Andrew McWilliam, Steve Shectman, Ian Thompson, G.J. Wasserburg, Inese Ivans, Matthias Dehn, Torgny Karlsson, J.Melendez

arXiv.org - Astrophysics – May 2004

astro-ph/0405286 [ abs , ps , pdf , other ]

Oxygen Overabundance in the Extremely Iron-Poor Star CS29498-043

Virtual Journal - Volume 2, Issue 8 - article #8
Wako Aoki, John E. Norris, Sean G. Ryan, Timothy C. Beers, Norbert Christlieb, Stelios Tsangarides, Hiroyasu Ando

arXiv.org – Astrophysics – February 2004

astro-ph/0402585 [ abs , ps , pdf , other ]

Finding the Most Metal-poor Stars of the Galactic Halo with the Hamburg/ESO Objecrive-prism Survey

Virtual Journal - Volume 1, Issue 5 - article #32
Norbert Christlieb

Reviews in Modern Astronomy: Vol. 16

Finding the Most Metal-poor Stars of the Galactic Halo with the Hamburg/ESO Objective-Prism Survey

Virtual Journal - Volume 1, Issue 4 - article #13
Norbert Christlieb(Hamburger Sternwarte, Germany)

arXiv.org - Astrophysics - Tue, 5 Aug 2003

astro-ph/0308016 [ abs , ps , pdf , other ]

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