Search - INSU - Institut national des sciences de l'Univers Access content directly

Filter your results

43 Results
authFullName_s : R. Cayrel

The photospheric solar oxygen project. I. Abundance analysis of atomic lines and influence of atmospheric models

E. Caffau , H.-G. Ludwig , M. Steffen , T. R. Ayres , P. Bonifacio , et al.
Astronomy and Astrophysics - A&A, 2008, 488, pp.1031-1046. ⟨10.1051/0004-6361:200809885⟩
Journal articles hal-00358560v1

First stars X. The nature of three unevolved carbon-enhanced metal-poor stars

T. Sivarani , T. C. Beers , P. Bonifacio , P. Molaro , R. Cayrel , et al.
Astronomy and Astrophysics - A&A, 2006, 459, pp.125-135. ⟨10.1051/0004-6361:20065440⟩
Journal articles hal-00362855v1

The Age of the First Nucleosynthesis in the Galaxy

R. Cayrel , V. Hill , M. Spite , F. Spite , P. François , et al.
Origin and Evolution of the Elements, 2004, Pasadena, United States
Conference papers hal-00138181v1

First stars.XV.Third-peak r-process element and actinide abundances in the uranium-rich star CS31082-001

B. Barbuy , M. Spite , V. Hill , Francesca Primas , Bertrand Plez , et al.
Astronomy and Astrophysics - A&A, 2011, 534, pp.60. ⟨10.1051/0004-6361/201117450⟩
Journal articles hal-00722124v1

First stars XII. Abundances in extremely metal-poor turnoff stars, and comparison with the giants

P. Bonifacio , M. Spite , R. Cayrel , V. Hill , F. Spite , et al.
Astronomy and Astrophysics - A&A, 2009, 501, pp.519-530. ⟨10.1051/0004-6361/200810610⟩
Journal articles hal-00457376v1
Image document

First Stars XIV. Sulfur abundances in extremely metal-poor (EMP) stars

Monique Spite , E. Caffau , S.M. Andrievsky , S. A. Korotin , E. Depagne , et al.
2010
Preprints, Working Papers, ... hal-00548834v2

First stars IX - Mixing in extremely metal-poor giants. Variation of the 12C/13C, [Na/Mg] and [Al/Mg] ratios

M. Spite , R. Cayrel , V. Hill , F. Spite , P. François , et al.
Astronomy and Astrophysics - A&A, 2006, 455, pp.291-301. ⟨10.1051/0004-6361:20065209⟩
Journal articles hal-00363166v1
Image document

Probing the Galactic thick disc vertical properties and interfaces

D. Katz , C. Soubiran , R. Cayrel , B. Barbuy , E. Friel , et al.
Astronomy and Astrophysics - A&A, 2011, 525, pp.90. ⟨10.1051/0004-6361/201014840⟩
Journal articles hal-00553033v1

First stars V - Abundance patterns from C to Zn and supernova yields in the early Galaxy

R. Cayrel , E. Depagne , M. Spite , V. Hill , F. Spite , et al.
Astronomy and Astrophysics - A&A, 2004, 416, pp.1117-1138
Journal articles hal-00014526v1
Image document

The 6Li/7Li isotopic ratio in the metal-poor binary CS22876–032

J. González Hernández , P. Bonifacio , E. Caffau , H.-G. Ludwig , M. Steffen , et al.
Astronomy and Astrophysics - A&A, 2019, 628, pp.A111. ⟨10.1051/0004-6361/201936011⟩
Journal articles hal-03107596v1

High-resolution abundance analysis of very metal-poor r-I stars

C. Siqueira Mello , V. Hill , B. Barbuy , M. Spite , F. Spite , et al.
Astronomy and Astrophysics - A&A, 2014, 565, pp.A93. ⟨10.1051/0004-6361/201423826⟩
Journal articles hal-02586023v1
Image document

Evolution of the Barium abundance in the early Galaxy from a NLTE analysis of the Ba lines in a homogeneous sample of EMP stars.

S.M. Andrievsky , M. Spite , S. A. Korotin , F. Spite , P. François , et al.
2009
Preprints, Working Papers, ... hal-00355822v1

An extremely primitive star in the Galactic halo

E. Caffau , P. Bonifacio , P. François , L. Sbordone , L. Monaco , et al.
Nature, 2011, 477, pp.67–69. ⟨10.1038/nature10377⟩
Journal articles hal-00632638v1
Image document

Non-LTE abundances of Mg and K in extremely metal-poor stars and the evolution of [O/Mg], [Na/Mg], [Al/Mg] and [K/Mg] in the Milky Way.

S.M. Andrievsky , Monique Spite , S.A. Korotin , F. Spite , P. Bonifacio , et al.
Astronomy and Astrophysics - A&A, 2010, pp.13223
Journal articles hal-00443083v1

First stars - XIV. Sulfur abundances in extremely metal-poor stars

M. Spite , E. Caffau , S.M. Andrievsky , S.A. Korotin , E. Depagne , et al.
Astronomy and Astrophysics - A&A, 2011, 528, pp.A9. ⟨10.1051/0004-6361/201015926⟩
Journal articles hal-00632682v1

The metal-poor end of the Spite plateau. I. Stellar parameters, metallicities, and lithium abundances

L. Sbordone , P. Bonifacio , E. Caffau , H. G. Ludwig , N. T. Behara , et al.
Astronomy and Astrophysics - A&A, 2010, 522, pp.26. ⟨10.1051/0004-6361/200913282⟩
Journal articles hal-00630870v1
Image document

NLTE determination of the aluminium abundance in a homogeneous sample of extremely metal-poor stars

S.M. Andrievsky , M. Spite , S.A. Korotin , F. Spite , P. Bonifacio , et al.
2008
Preprints, Working Papers, ... hal-00250376v1
Image document

A thorough spectroscopic study of the very nearby triple system - 36 Ophiuchi

G. Cayrel de Strobel , M. N. Perrin , R. Cayrel , Y. Lebreton
Astronomy and Astrophysics - A&A, 1989
Journal articles obspm-03771045v1

TOPoS: I. Survey design and analysis of the first sample

E. Caffau , P. Bonifacio , L. Sbordone , P. François , L. Monaco , et al.
Astronomy and Astrophysics - A&A, 2013, 560, pp.A71. ⟨10.1051/0004-6361/201322488⟩
Journal articles hal-00877631v1
Image document

TOPoS. V. Abundance ratios in a sample of very metal-poor turn-off stars

P. François , E. Caffau , P. Bonifacio , M. Spite , F. Spite , et al.
Astronomy and Astrophysics - A&A, 2018, 620, pp.A187. ⟨10.1051/0004-6361/201834375⟩
Journal articles hal-02104754v1

HST/STIS abundances in the uranium rich metal poor star CS 31082-001: Constraints on the r-Process

C. Siqueira-Mello , M. Spite , B. Barbuy , F. Spite , E. Caffau , et al.
6th Nuclear Physics in Astrophysics and 26th International Nuclear Physics Divisional Conference of the European Physical Society, May 2013, Lisbon, Portugal. pp.012056, ⟨10.1088/1742-6596/665/1/012056⟩
Conference papers hal-02017034v1

TOPoS II. On the bimodality of carbon abundance in CEMP stars Implications on the early chemical evolution of galaxies

P. Bonifacio , E. Caffau , M. Spite , M. Limongi , A. Chieffi , et al.
Astronomy and Astrophysics - A&A, 2015, 579, pp.A28. ⟨10.1051/0004-6361/201425266⟩
Journal articles hal-01972054v1

First stars. XIII. Two extremely metal-poor RR Lyrae stars

C. J. Hansen , B. Nordström , P. Bonifacio , M. Spite , J. Andersen , et al.
Astronomy and Astrophysics - A&A, 2011, 527, pp.65. ⟨10.1051/0004-6361/201015076⟩
Journal articles hal-00632655v1

NLTE determination of the aluminium abundance in a homogeneous sample of extremely metal-poor stars

S.M. Andrievsky , M. Spite , S.A. Korotin , F. Spite , P. Bonifacio , et al.
Astronomy and Astrophysics - A&A, 2008, 481, pp.481-487
Journal articles hal-00382448v1

NLTE strontium abundance in a sample of extremely metal poor stars and the Sr/Ba ratio in the early Galaxy

S.M. Andrievsky , F. Spite , S.A. Korotin , P. François , M. Spite , et al.
Astronomy and Astrophysics - A&A, 2011, 530, pp.A105. ⟨10.1051/0004-6361/201116591⟩
Journal articles hal-00632625v1

X-Shooter GTO: chemical analysis of a sample of EMP candidates

E. Caffau , P. Bonifacio , P. François , M. Spite , F. Spite , et al.
Astronomy and Astrophysics - A&A, 2011, 534, pp.A4. ⟨10.1051/0004-6361/201117530⟩
Journal articles hal-00632639v1

Extremely metal-poor stars in SDSS fields

P. Bonifacio , E. Caffau , P. François , L. Sbordone , H.G. Ludwig , et al.
Astronomical Notes / Astronomische Nachrichten, 2011, 332, Issue 3, pp.251–257. ⟨10.1002/asna.201111528⟩
Journal articles hal-00632634v1

Using CO5BOLD models to predict the effects of granulation on colours

P. Bonifacio , E. Caffau , H.-G. Ludwig , M. Steffen , F. Castelli , et al.
Memorie della Societa astronomica italiana, 2017, 88, pp.90-99
Journal articles hal-02268806v1

First stars XI. Chemical composition of the extremely metal-poor dwarfs in the binary CS 22876-032

J. I. González Hernández , P. Bonifacio , H.-G. Ludwig , E. Caffau , M. Spite , et al.
Astronomy and Astrophysics - A&A, 2008, 480, pp.233-246. ⟨10.1051/0004-6361:20078847⟩
Journal articles hal-00362499v1
Image document

Self-broadening of the hydrogen Balmer α line

N. F. Allard , J. F. Kielkopf , R. Cayrel , C. Van'T Veer-Menneret
Astronomy and Astrophysics - A&A, 2008, 480, pp.581-587. ⟨10.1051/0004-6361:20078437⟩
Journal articles hal-03646488v1