A. Alonso, S. Arribas, and C. Martinez-roger, The effective temperature scale of giant stars (F0???K5), Astronomy and Astrophysics Supplement Series, vol.140, issue.3, p.261, 1999.
DOI : 10.1051/aas:1999521

W. Aoki, J. E. Norris, and S. G. Ryan, Detection of Lead in the Carbon-rich, Very Metal-poor Star LP 625-44: A Strong Constraint on [CLC][ITAL]s[/ITAL][/CLC]-Process Nucleosynthesis at Low Metallicity, The Astrophysical Journal, vol.536, issue.2, p.97, 2000.
DOI : 10.1086/312740

W. Aoki, J. E. Norris, and S. G. Ryan, The Chemical Composition of Carbon???rich, Very Metal Poor Stars: A New Class of Mildly Carbon Rich Objects without Excess of Neutron???Capture Elements, The Astrophysical Journal, vol.567, issue.2, p.1166, 2002.
DOI : 10.1086/338756

C. W. Bauschlicher, S. R. Langhoff, and P. R. Taylor, Theoretical study of the dissociation energy and the red and violet band systems of CN, The Astrophysical Journal, vol.332, p.531, 1988.
DOI : 10.1086/166675

T. C. Beers, S. Rossi, and . Norris, Estimation of Stellar Metal Abundance. II. A Recalibration of the C[CLC]a[/CLC] [CSC]ii[/CSC] K Technique, and the Autocorrelation Function Method, The Astronomical Journal, vol.117, issue.2, p.981, 1999.
DOI : 10.1086/300727

M. Bessell and J. M. Brett, JHKLM photometry - Standard systems, passbands, and intrinsic colors, Publications of the Astronomical Society of the Pacific, vol.100, p.1134, 1988.
DOI : 10.1086/132281

L. Blake, S. Ryan, and J. Norris, Neutron-capture elements in the Sr-rich, Ba-normal metal-poor giant CS22897-008, Nuclear Physics A, vol.688, issue.1-2, p.502, 2001.
DOI : 10.1016/S0375-9474(01)00769-2

D. Burstein and C. Heiles, Reddenings derived from H I and galaxy counts - Accuracy and maps, The Astronomical Journal, vol.87, p.1165, 1982.
DOI : 10.1086/113199

A. Chieffi, I. Dominguez, and M. Limongi, Evolution and Nucleosynthesis of Zero???Metal Intermediate???Mass Stars, The Astrophysical Journal, vol.554, issue.2, p.1159, 2001.
DOI : 10.1086/321387

C. L. Fryer, S. E. Woosley, and A. Heger, Pair???Instability Supernovae, Gravity Waves, and Gamma???Ray Transients, The Astrophysical Journal, vol.550, issue.1, p.372, 2001.
DOI : 10.1086/319719

URL : http://arxiv.org/abs/astro-ph/0007176

R. Gallino, C. Arlandini, and M. Busso, ???Process, The Astrophysical Journal, vol.497, issue.1, p.388, 1998.
DOI : 10.1086/305437

A. Heger and S. E. Woosley, The Nucleosynthetic Signature of Population III, The Astrophysical Journal, vol.567, issue.1, p.532, 2002.
DOI : 10.1086/338487

G. Israelian, R. Rebolo, and R. J. García-lópez, Sulphur Abundance in Very Metal-poor Stars, The Astrophysical Journal, vol.557, issue.1, pp.43-833, 2001.
DOI : 10.1086/323121

D. Kiselman, NLTE effects on oxygen lines, New Astronomy Reviews, vol.45, issue.8, p.559, 2001.
DOI : 10.1016/S1387-6473(01)00127-0

G. Meynet, A. Maeder, A. Mcwilliam, G. W. Preston, and C. Sneden, The origin of primary nitrogen in galaxies, Astronomy and Astrophysics, vol.381, issue.1, pp.25-2757, 1995.
DOI : 10.1051/0004-6361:20011554

J. E. Norris, S. G. Ryan, and T. C. Beers, Extremely Metal???poor Stars. IV. The Carbon???rich Objects, The Astrophysical Journal, vol.488, issue.1, p.350, 1997.
DOI : 10.1086/304695

J. E. Norris, S. G. Ryan, T. C. Beers, J. E. Norris, S. G. Ryan et al., Extremely Metal-Poor Stars. The Carbon-Rich, Neutron Capture Element???Poor Object CS 22957???027, The Astrophysical Journal, vol.489, issue.2, pp.169-561, 1997.
DOI : 10.1086/316787

J. E. Norris, S. G. Ryan, and T. C. Beers, Extremely Metal-poor Stars. IX. CS 22949-037 and the Role of Hypernovae, The Astrophysical Journal, vol.569, issue.2, p.107, 2002.
DOI : 10.1086/340665

H. Umeda and K. Nomoto, Nucleosynthesis of Zinc and Iron Peak Elements in Population III Type II Supernovae: Comparison with Abundances of Very Metal Poor Halo Stars, The Astrophysical Journal, vol.565, issue.1, p.385, 2002.
DOI : 10.1086/323946

S. Van-eck, S. Goriely, and A. Jorissen, Discovery of three lead-rich stars, Nature, vol.312, issue.6849, p.793, 2001.
DOI : 10.1038/35090514

A. Alonso, S. Arribas, and C. Martínez-roger, The effective temperature scale of giant stars (F0???K5), Astronomy and Astrophysics Supplement Series, vol.139, issue.2, p.335, 1999.
DOI : 10.1051/aas:1999506

E. Anders and N. Grevesse, Abundances of the elements: Meteoritic and solar, Geochimica et Cosmochimica Acta, vol.53, issue.1, p.197, 1989.
DOI : 10.1016/0016-7037(89)90286-X

T. Andersen, O. Poulsen, and P. S. Ramanujam, Lifetimes of some excited states in the rare earths: La ii, Ce ii, Pr ii, Nd ii, Sm ii, Yb i, Yb ii, and Lu ii, Solar Physics, vol.158, issue.2, p.257, 1975.
DOI : 10.1007/BF00153206

S. D. Anstee and B. J. Mara, Width cross-sections for collisional broadening of s-p and p-s transitions by atomic hydrogen, Monthly Notices of the Royal Astronomical Society, vol.276, issue.3, p.859, 1995.
DOI : 10.1093/mnras/276.3.859

B. J. Anthony-twarog and B. Twarog, CCD [ITAL][CLC]uvby[/CLC][/ITAL]H?? Photometry in Clusters. I. The Open Cluster Standard, IC 4651, The Astronomical Journal, vol.119, issue.5, p.2282, 2000.
DOI : 10.1086/301337

W. Aoki, J. E. Norris, S. G. Ryan, T. C. Beers, and H. Ando, Detection of Lead in the Carbon-rich, Very Metal-poor Star LP 625-44: A Strong Constraint on [CLC][ITAL]s[/ITAL][/CLC]-Process Nucleosynthesis at Low Metallicity, The Astrophysical Journal, vol.536, issue.2, p.97, 2000.
DOI : 10.1086/312740

C. Arlandini, F. Käppeler, and K. Wisshak, Neutron Capture in Low???Mass Asymptotic Giant Branch Stars: Cross Sections and Abundance Signatures, The Astrophysical Journal, vol.525, issue.2, p.886, 1999.
DOI : 10.1086/307938

M. Asplund and A. E. García-pérez, On OH line formation and oxygen abundances in metal-poor stars, Astronomy & Astrophysics, vol.372, issue.2, p.601, 2001.
DOI : 10.1051/0004-6361:20010483

P. S. Barklem, B. J. O-'mara, and J. E. Ross, The broadening of d-f and f-d transitions by collisions with neutral hydrogen atoms, Monthly Notices of the Royal Astronomical Society, vol.296, issue.4, p.1057, 1998.
DOI : 10.1046/j.1365-8711.1998.01484.x

C. W. Bauschlicher, S. R. Langhoff, and P. R. Taylor, Theoretical study of the dissociation energy and the red and violet band systems of CN, The Astrophysical Journal, vol.332, p.531, 1988.
DOI : 10.1086/166675

V. Hill, First stars. I. The extreme $r$-element rich, iron-poor halo giant CS??31082-001, Astronomy & Astrophysics, vol.387, issue.2, pp.31082-31083
DOI : 10.1051/0004-6361:20020434

URL : https://hal.archives-ouvertes.fr/hal-00632655

M. Bessell and J. Norris, The ultra-metal-deficient (Population III?) red giant CD 38.245 deg, The Astrophysical Journal, vol.285, p.622, 1984.
DOI : 10.1086/162539

E. Biémont, N. Grevesse, P. Hannaford, and R. M. Lowe, Oscillator strengths for Zr I and Zr II and a new determination of the solar abundance of zirconium, The Astrophysical Journal, vol.248, p.867, 1981.
DOI : 10.1086/159213

A. M. Boesgaard, J. R. King, C. P. Deliyannis, and S. S. Vogt, Oxygen in Unevolved Metal-Poor Stars from Keck Ultraviolet HIRES Spectra, The Astronomical Journal, vol.117, issue.1, p.492, 1999.
DOI : 10.1086/300691

G. R. Burbidge and E. M. Burbidge, An Analysis of the Magnetic Variable ??2 Canum Venaticorum., The Astrophysical Journal Supplement Series, vol.1, p.431, 1955.
DOI : 10.1086/190009

D. Burstein and C. Heiles, Reddenings derived from H I and galaxy counts - Accuracy and maps, The Astronomical Journal, vol.87, p.1165, 1982.
DOI : 10.1086/113199

D. L. Burris, C. A. Pilachowski, and T. E. Armandroff, Neutron???Capture Elements in the Early Galaxy: Insights from a Large Sample of Metal???poor Giants, The Astrophysical Journal, vol.544, issue.1, p.302, 2000.
DOI : 10.1086/317172

R. Cayrel, The first generations of stars, Astronomy and Astrophysics Review, vol.7, issue.3, p.217, 1996.
DOI : 10.1007/s001590050005

P. Colarusso, M. Lebeault-dorget, and . Simard, First ionization potentials of osmium and iridium determined by mass-analyzed double-resonance field-ionization spectroscopy, Physical Review A, vol.55, issue.2, p.1526, 1997.
DOI : 10.1103/PhysRevA.55.1526

C. H. Corliss and W. R. Bozman, Experimental Transition Probabilities for Spectral lines of Seventy Elements (NBS Monograph 32), 1962.

J. J. Cowan, B. Pfeiffer, and K. Kratz, ???Process Abundances and Chronometers in Metal???poor Stars, The Astrophysical Journal, vol.521, issue.1, p.194, 1999.
DOI : 10.1086/307512

J. L. Crawford, C. Sneden, J. R. King, A. M. Boesgaard, and C. Delyannis, Detection of Silver in Metal-poor Stars, The Astronomical Journal, vol.116, issue.5, p.2489, 1998.
DOI : 10.1086/300600

R. M. Cutri, M. F. Skrutskie, and S. Van-dyk, Second Incremental Data Release Explanatory Supplement, Optical and IR Telescope Instrumentation and Detectors Masanori Iye and Alan F. Moorwood, Proc. SPIE, p.534, 2000.

P. Fouqué, L. Chevallier, and M. Cohen, An absolute calibration of DENIS (deep near infrared southern sky survey), Astronomy and Astrophysics Supplement Series, vol.141, issue.2, p.313, 2000.
DOI : 10.1051/aas:2000123

A. Gallagher, Oscillator Strengths of Ca II, Sr II, and Ba II, Physical Review, vol.157, issue.1, p.24, 1967.
DOI : 10.1103/PhysRev.157.24

A. Goly, J. Kusz, B. Nguyen-quang, and S. Weniger, Transition probabilities of PrII-lines emitted from a ferroelectric plasma source, Journal of Quantitative Spectroscopy and Radiative Transfer, vol.45, issue.3, p.157, 1991.
DOI : 10.1016/0022-4073(91)90005-B

P. Hannaford, R. M. Lowe, N. Grevesse, E. Biémont, and W. Whaling, Oscillator strengths for Y I and Y II and the solar abundance of yttrium, The Astrophysical Journal, vol.261, p.736, 1982.
DOI : 10.1086/160384

G. Israelian, R. García-lópez, J. Ramón, and R. Rebolo, Oxygen Abundances in Unevolved Metal???poor Stars from Near???Ultraviolet OH Lines, The Astrophysical Journal, vol.507, issue.2, p.805, 1998.
DOI : 10.1086/306351

D. V. Ivanova and V. V. Shimanskii, Non-LTE analysis of the formation of KI lines in the spectra of A-K stars, Astronomy Reports, vol.44, issue.6, p.376, 2000.
DOI : 10.1134/1.163861

M. Jaschek and S. Malaroda, Heavy Elements in 73 Draconis, Nature, vol.225, issue.5229, p.246, 1970.
DOI : 10.1038/225246a0

J. Johnson and M. Bolte, Th Ages for Metal???poor Stars, The Astrophysical Journal, vol.554, issue.2, p.888, 2001.
DOI : 10.1086/321386

F. Käppeler, H. Beer, and K. Wisshak, s-process nucleosynthesis-nuclear physics and the classical model, Reports on Progress in Physics, vol.52, issue.8, p.945, 1989.
DOI : 10.1088/0034-4885/52/8/002

F. Kupka, N. E. Piskunov, T. A. Ryabchikova, H. C. Stempels, and W. W. Weiss, VALD???2: Progress of the Vienna Atomic Line Data Base, Astronomy and Astrophysics Supplement Series, vol.138, issue.1, p.119, 1999.
DOI : 10.1051/aas:1999267

C. S. Lage and W. Whaling, Transition probabilities in Pr(II) and the solar praseodymium abundance, Journal of Quantitative Spectroscopy and Radiative Transfer, vol.16, issue.6, p.537, 1976.
DOI : 10.1016/0022-4073(76)90089-3

M. Larsson, P. E. Siegbahn, and H. Agren, A theoretical investigation of the radiative properties of the CN red and violet systems, The Astrophysical Journal, vol.272, p.369, 1983.
DOI : 10.1086/161302

J. E. Lawler, G. Bonvallet, and C. Sneden, and a New Determination of the Solar Lanthanum Abundance, The Astrophysical Journal, vol.556, issue.1, p.452, 2001.
DOI : 10.1086/321549

J. E. Lawler, M. E. Wickliffe, C. R. Cowley, and C. Sneden, with Applications to Solar and Stellar Spectra, The Astrophysical Journal Supplement Series, vol.137, issue.2, p.341, 2001.
DOI : 10.1086/323001

L. Lu, W. W. Sargent, T. A. Barlow, C. W. Churchill, and S. S. Vogt, Abundances at High Redshifts: The Chemical Enrichment History OF, The Astrophysical Journal Supplement Series, vol.107, issue.2, p.475, 1996.
DOI : 10.1086/192373

R. S. Maier and W. Whaling, Transition probabilities in Nd(II) and the solar neodymium abundance, Journal of Quantitative Spectroscopy and Radiative Transfer, vol.18, issue.5, p.501, 1977.
DOI : 10.1016/0022-4073(77)90048-6

A. Mcwilliam, G. W. Preston, C. Sneden, and L. Searle, Spectroscopic Analysis of 33 of the Most Metal Poor Stars. II., The Astronomical Journal, vol.109, p.2757, 1995.
DOI : 10.1086/117486

C. E. Moore, Ionization potentials and Ionization Limits Derived from the Analyses of Optical Spectra, Natl. Bur Stand. (US) Circ. No. NSRDS-NBS, vol.34, 1970.
DOI : 10.6028/NBS.NSRDS.34

K. Musiol and S. Labuz, Experimental Determination of the Transition Probabilities in Er II, Physica Scripta, vol.27, issue.6, p.422, 1993.
DOI : 10.1088/0031-8949/27/6/008

H. Nilsson, Z. Zhang, H. Lundberg, S. Johansson, and B. Nordström, Experimental oscillator strengths in Th II, Astronomy & Astrophysics, vol.382, issue.1, p.368, 2001.
DOI : 10.1051/0004-6361:20011597

P. Nissen, F. Primas, and M. Asplund, Oxygen abundances of halo dwarf and subgiant stars from VLT/UVES observations of the [Oi] line, New Astronomy Reviews, vol.45, issue.8, p.545, 2001.
DOI : 10.1016/S1387-6473(01)00122-1

B. Pagel and G. Tautvai?-sienè, Galactic chemical evolution of primary elements in the solar neighbourhood -- II. Elements affected by the s-process, Monthly Notices of the Royal Astronomical Society, vol.288, issue.1, p.108, 1997.
DOI : 10.1093/mnras/288.1.108

B. Plez, V. V. Smith, and D. L. Lambert, Lithium Abundances and Other Clues to Envelope Burning in Small Magellanic Cloud Asymptotic Giant Branch Stars, The Astrophysical Journal, vol.418, p.812, 1993.
DOI : 10.1086/173438

C. Sneden, A. Mcwilliam, and G. W. Preston, The Ultra--Metal-poor, Neutron-Capture--rich Giant Star CS 22892-052, The Astrophysical Journal, vol.467, p.819, 1996.
DOI : 10.1086/177656

C. Sneden, J. J. Cowan, D. L. Burris, and J. W. Truran, Observations of Neutron???Capture Elements in Very Metal Poor Stars, The Astrophysical Journal, vol.496, issue.1, p.235, 1998.
DOI : 10.1086/305366

C. Sneden, J. J. Cowan, and I. I. Ivans, Evidence of Multiple [CLC][ITAL]r[/ITAL][/CLC]-Process Sites in the Early Galaxy: New Observations of CS 22892???052, The Astrophysical Journal, vol.533, issue.2, pp.139-545, 2000.
DOI : 10.1086/312631

S. Van-eck, S. Goriely, A. Jorissen, and B. Plez, Discovery of three lead-rich stars, Nature, vol.312, issue.6849, p.793, 2001.
DOI : 10.1038/35090514

G. Vladilo, P. Bonifacio, M. Centurión, and P. Molaro, Zinc as a Tracer of Metallicity Evolution of Damped Ly?? Systems, The Astrophysical Journal, vol.543, issue.1, p.24, 2000.
DOI : 10.1086/317110

L. Ward, O. Vogel, and A. Ahnesjö, Radiative Lifetimes in Nd II and the Solar Neodymium Abundance, Physica Scripta, vol.29, issue.6, p.551, 1984.
DOI : 10.1088/0031-8949/29/6/009

L. Ward, O. Vogel, A. Arnesan, R. Hallin, and A. Wännström, Accurate Experimental Lifetimes of Excited Levels in Nd II, Physica Scripta, vol.31, issue.3, p.161, 1985.
DOI : 10.1088/0031-8949/31/3/001

J. Westin, C. Sneden, B. Gustafsson, and J. J. Cowan, ???Process???enriched Low???Metallicity Giant HD 115444, The Astrophysical Journal, vol.530, issue.2, p.783, 2000.
DOI : 10.1086/308407

A. Prieto, C. Et, and . Al, A Consistency Test of Spectroscopic Gravities for Late???Type Stars, The Astrophysical Journal, vol.527, issue.2, pp.879-892, 1999.
DOI : 10.1086/308096

A. Prieto, C. Lambert, D. L. Et-asplund, and M. , The [ITAL]Forbidden[/ITAL] Abundance of Oxygen in the Sun, The Astrophysical Journal, vol.556, issue.1, pp.63-66, 2001.
DOI : 10.1086/322874

A. , A. Arribas, S. Et-martínez-roger, and C. , The effective temperature scale of giant stars (F0-K5). II. empirical calibration of T eff versus colours and, Astron. Astrophys, vol.140, pp.261-277, 1999.

A. , R. Et-plez, and B. , Near-infrared narrow-band photometry of M-giant and Mira stars : models meet observations, Astron. Astrophys, vol.330, pp.1109-1119, 1998.

A. , W. Et, and . Al, Subaru/HDS Study of the Extremely Metal-Poor Star CS29498-043 : Abundance Analysis Details and Comparison with Other Carbon-Rich Objects, Publ, Astron. Soc. Jpn, vol.54, pp.933-949, 2002.

A. , M. Goriely, S. Et, and A. Jorissen, Non-explosive hydrogen and helium burnings : abundance predictions from the NACRE reaction rate compilation, Astron. Astrophys, vol.347, pp.572-582, 1999.

A. , M. Et, and . Al, 3D hydrodynamical model atmospheres of metal-poor stars. Evidence for a low primordial Li abundance, Astron. Astrophys, vol.346, pp.17-20, 1999.

A. , J. Et, and J. Silk, The first generation of stars : first steps toward chemical evolution of galaxies, Astrophys. J., Lett, vol.451, p.49, 1995.

B. , D. Et-gehren, and T. , Aluminium in metal-poor stars, Astron. Astrophys, vol.325, pp.1088-1098, 1997.

B. , D. Butler, K. Et-gehren, and T. , Sodium in the Sun and in metal-poor stars, Astron. Astrophys, vol.338, pp.637-650, 1998.

T. C. Beers, The Metallicity Distribution Function of Extremely Low-Metallicity Stars, Astrophys. Space. Sci, vol.265, pp.105-113, 1999.
DOI : 10.1007/978-94-011-4213-7_18

T. C. Beers, G. W. Preston, . Et, and S. A. Shectman, A search for stars of very low metal abundance. I, Astrophys. J, vol.90, pp.2089-2102, 1985.

T. C. Beers, G. W. Preston, . Et, and S. A. Shectman, A search for stars of very low metal abundance, II. Astrophys. J, vol.103, pp.1987-2034, 1992.

B. , A. M. Et, and . Al, Oxygen in unevolved metal-poor stars from keck ultraviolet hires spectra, Astrophys. J, vol.117, pp.492-507, 1999.

E. M. Burbidge, . Et, and . Al, Synthesis of the Elements in Stars, Reviews of Modern Physics, vol.29, issue.4, p.547, 1957.
DOI : 10.1103/RevModPhys.29.547

C. , D. F. Et, and . Al, Carbon and nitrogen abundances in metal-poor dwarfs of the solar neighborhood, Publ, Astron. Soc. Pac, vol.99, pp.335-368, 1987.

C. , E. Et, and . Al, Stellar Archaeology : A Keck Pilot Program on Extremely Metal-poor Stars from the Hamburg/ESO Survey. II. Abundance Analysis, Astrophys. J, vol.124, pp.481-506, 2002.

C. , R. Et, and . Al, Determination of, BD +23 3130 from ESO VLT-UVES observations, pp.533-535, 2001.
URL : https://hal.archives-ouvertes.fr/in2p3-00015539

C. , A. Et-limongi, and M. , The Explosive Yields Produced by the First Generation of Core Collapse Supernovae and the Chemical Composition of Extremely Metal Poor Stars, Astrophys. J, vol.577, pp.281-294, 2002.

C. , N. Et, and . Al, A stellar relic from the early Milky Way, Nature, vol.419, pp.904-906, 2002.

C. , J. G. Et, and . Al, Stellar Archaeology : A Keck Pilot Program on Extremely Metal-poor Stars from the Hamburg, Survey. I. Stellar Parameters Astrophys. J, vol.124, pp.470-480, 2002.

D. , E. Et, and . Al, First Stars. II. Elemental abundances in the extremely metal-poor star CS 22949?037. A diagnostic of early massive supernovae, Astron. Astrophys, vol.390, pp.187-198, 2002.

E. , B. Et, and . Al, The Chemical Evolution of the Galactic Disk -Part one -Analysis and Results, Astron. Astrophys, vol.275, pp.101-152, 1993.

E. , B. Et, and . Al, The chemical evolution of the galactic disk -Part two observational data, Astron . Astrophys. Suppl. Ser, vol.102, pp.603-605, 1993.

F. and K. A. Et, Optical and Infrared Colors of Stars Observed by the Two Micron All Sky Survey and the Sloan Digital Sky Survey, Astrophys. J, vol.120, pp.2615-2626, 2000.

G. , M. E. Mendoza, C. Et-zeippen, and C. J. , Atomic data from the IRON Project. XXII. Radiative rates for forbidden transitions within the ground configuration of ions in the carbon and oxygen isoelectronic sequences, Astron. Astrophys, vol.123, pp.159-171, 1997.

G. , A. Et-prantzos, and N. , Abundance evolution of intermediate mass elements (C to Zn) in the Milky Way halo and disk, Astron. Astrophys, vol.359, pp.191-212, 2000.

G. , B. Et, and . Al, A grid of model atmospheres for metal-deficient giant stars. I, Astron. Astrophys, vol.42, pp.407-432, 1975.

H. , A. Et-woosley, and S. E. , The Nucleosynthetic Signature of Population III, Astrophys. J, vol.567, pp.532-543, 2002.

H. , V. Et, and . Al, First stars. I. The extreme r-element rich, iron-poor halo giant CS 31082-001. Implications for the r-process site(s) and radioactive cosmochronology, Astron. Astrophys, vol.387, pp.560-579, 2002.

I. , G. García-lópez, R. Et-rebolo, and R. , Oxygen abundances in unevolved metal-poor stars from near-ultraviolet OH lines, Astrophys. J, vol.507, pp.805-817, 1998.

I. , G. Et, and . Al, Oxygen in the Very Early Galaxy, Astrophys. J, vol.551, pp.833-851, 2001.

I. , D. V. Et-shimanski-?-i, and V. V. , Non-LTE Analysis of the Formation of KI Lines in the Spectra of A-K Stars, Astron. Rep, vol.44, pp.376-388, 2000.

L. , G. E. Et, and . Al, On the carbon abundance of subgiant stars in the globular cluster M 92, Publ, Astron. Soc. Pac, vol.98, pp.473-485, 1986.

L. , M. Straniero, O. Et-chieffi, and A. , Massive Stars in the Range 13-25 M solar : Evolution and Nucleosynthesis. II. The Solar Metallicity Models, Astrophys. J. Suppl. Ser, vol.129, pp.625-664, 2000.

M. , A. Et, and . Al, A Spectroscopic Analysis of 33 of the Most Metal-Poor Stars.I, Astrophys. J, vol.109, pp.2736-2756, 1995.

M. , A. Et, and . Al, Spectroscopic analysis of 33 of the most metal poor stars, II. Astrophys. J, vol.109, pp.2757-2799, 1995.

M. , G. Et-maeder, and A. , The origin of primary nitrogen in galaxies, Astron. Astrophys, vol.381, pp.25-28, 2002.

N. , T. Et, and . Al, Nucleosynthesis in Type II Supernovae and the Abundances in Metal-poor Stars, Astrophys. J, vol.517, pp.193-208, 1999.

N. , T. Et, and . Al, Explosive Nucleosynthesis in Hypernovae, Astrophys. J, vol.555, pp.880-899, 2001.

N. , P. E. Et-edvardsson, and B. , Oxygen abundances in F and G dwarfs derived from the forbidden OI line at 6300 A, Astron. Astrophys, vol.261, pp.255-262, 1992.

N. , P. E. Primas, F. Et-asplund, and M. , Oxygen abundances of halo dwarf and subgiant stars from VLT/UVES observations of the [Oi] ?6300 line, New Astronomy Review, vol.45, pp.545-547, 2001.

N. , J. E. Beers, T. C. Et-ryan, and S. G. , Extremely metal-poor stars. VII. The most metal-poor dwarf, CS, Astrophys. J, vol.540, pp.22876-22908, 2000.
URL : https://hal.archives-ouvertes.fr/hal-00632655

N. , J. E. Beers, T. C. Et-ryan, and S. G. , Extremely metal-poor stars. VIII. High resolution, high signal-to-noise analysis of five stars with, Astrophys. J, vol.5, issue.561, pp.1034-1059, 2001.
URL : https://hal.archives-ouvertes.fr/hal-00632655

N. , J. E. Et, and . Al, Extremely Metal-poor Stars. IX. CS 22949-037 and the Role of Hypernovae, Astrophys . J., Lett, vol.569, pp.107-110, 2002.

P. , B. Brett, J. M. Et-nordlund, and A. , Spherical opacity sampling model atmospheres for M-giants. I -Techniques, data and discussion, Astron. Astrophys, vol.256, pp.551-571, 1992.

R. , S. Beers, T. C. Et, and C. Sneden, Carbon Abundances for Metal-Poor Stars Based on Medium- Resolution Spectra, dans : ASP Conf. Ser. 165 : The Third Stromlo Symposium : The Galactic Halo, p.264, 1999.

R. , S. G. Norris, J. E. Et, and T. C. Beers, Extremely Metal-poor Stars. II. Elemental Abundances and the Early Chemical Enrichment of the Galaxy, Astrophys. J, vol.471, pp.254-278, 1996.

S. , D. J. Finkbeiner, D. P. Et, and M. Davis, Maps of Dust Infrared Emission for Use in Estimation of Reddening and Cosmic Microwave Background Radiation Foregrounds, Astrophys. J, vol.500, pp.525-553, 1998.

S. , C. Et-primas, and F. , Oxygen abundances : new results from [O I] lines, New Astronomy Review, vol.45, pp.513-518, 2001.

S. , C. Et, and . Al, The Ultra?Metal-poor, Neutron-Capture?rich Giant Star CS 22892-052, Astrophys. J, vol.467, p.819, 1996.

S. and C. A. Et, Evidence of Multiple R-Process Sites in the Early Galaxy : New Observations of CS 22892-052, Astrophys. J., Lett, vol.533, pp.139-142, 2000.

S. , P. J. Et-zeippen, and C. J. , Theoretical values for the [Oiii] 5007/4959 line-intensity ratio and homologous cases, Mon. Not. R. Astron. Soc, vol.312, pp.813-816, 2000.

T. , Y. Et, and . Al, On the Abundance of Potassium in Metal-Poor Stars, Publ, Astron. Soc. Jpn, vol.54, pp.275-284, 2002.

T. , F. Et-idiart, and T. P. , Stellar iron abundances : non-LTE effects, Astrophys. J, vol.521, pp.753-763, 1999.

T. , F. X. Woosley, S. E. Et, and T. A. Weaver, Galactic chemical evolution : hydrogen through zinc, Astrophys. J. Suppl. Ser, vol.98, pp.617-658, 1995.

U. , H. Et, and K. Nomoto, Nucleosynthesis of Zinc and Iron Peak Elements in Population III Type II Supernovae : Comparison with Abundances of Very Metal Poor Halo Stars, Astrophys. J, vol.565, pp.385-404, 2002.

D. A. Vandenberg, . Et, and R. A. Bell, How oxygen affects the CMDs and predicted ages of extreme Population II stars, New Astronomy Reviews, vol.45, issue.8, pp.577-582, 2001.
DOI : 10.1016/S1387-6473(01)00131-2

W. , G. Et, and . Al, Synthesis of the elements in stars : forty years of progress, Reviews of Modern Physics, pp.995-1084, 1997.

W. , S. E. Et, and T. A. Weaver, The evolution and explosion of massive stars. II. Explosive hydrodynamics and nucleosynthesis, Astrophys. J. Suppl. Ser, vol.101, pp.181-235, 1995.