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Results 1 - 70 of 70

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
Carbon-enhanced metal-poor 3D model atmospheres. (arXiv:1708.05686v1 [astro-ph.SR])
- Virtual Journal - Volume 15, Issue 34 - article #4
- M. Steffen, A.J. Gallagher, E. Caffau, P. Bonifacio, H.-G. Ludwig
- http://arxiv.org/abs/1708.05686
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
Lithium spectral line formation in stellar atmospheres. The impact of convection and NLTE effects
- Virtual Journal - Volume 14, Issue 1 - article #3
- J. Klevas, A. Kučinskas, M. Steffen, E. Caffau, H.-G. Ludwig
- arXiv.org - Astrophysics - Volume: 2016, Issue: 1 Jan
- arXiv:1512.08999 [pdf, ps, other]
3D Model Atmospheres for Extremely Low-Mass White Dwarfs
- Virtual Journal - Volume 13, Issue 25 - article #1
- P.-E. Tremblay, A. Gianninas, M. Kilic, H.-G. Ludwig, M. Steffen, B. Freytag, J. J. Hermes
- arXiv.org - Astrophysics - Volume: 2015, Issue: 10 Jul
- arXiv:1507.01927 [pdf, ps, other]
The photospheric solar oxygen project: III. Investigation of the centre-to-limb variation of the 630nm [OI]-NiI blend
- Virtual Journal - Volume 13, Issue 22 - article #11
- E. Caffau, H.-G. Ludwig, M. Steffen, W. Livingston, P. Bonifacio, J.-M. Malherbe, H.-P. Doerr, W. Schmidt
- arXiv.org - Astrophysics - Volume: 2015, Issue: 5 Jun
- arXiv:1506.00931 [pdf, ps, other]
A three-dimensional hydrodynamical line profile analysis of iron lines and barium isotopes in HD140283
- Virtual Journal - Volume 13, Issue 14 - article #1
- A. J. Gallagher, H.-G. Ludwig, S. G. Ryan, W. Aoki
- arXiv.org - Astrophysics - Volume: 2015, Issue: 10 Apr
- arXiv:1504.02353 [pdf, other]
Calibration of the Mixing-length Theory for Convective White Dwarf Envelopes
- Virtual Journal - Volume 13, Issue 8 - article #19
- P.-E. Tremblay, H.-G. Ludwig, B. Freytag, G. Fontaine, M. Steffen, and P. Brassard
- The Astrophysical Journal - Volume: 799, Issue: 2
- View article PDF (860 KB)
Calibration of the Mixing-Length Theory for Convective White Dwarf Envelopes
- Virtual Journal - Volume 12, Issue 25 - article #28
- P.-E. Tremblay, H.-G. Ludwig, B. Freytag, G. Fontaine, M. Steffen, P. Brassard
- arXiv.org - Astrophysics - Volume: 2014, Issue: 5 Dec
- arXiv:1412.1789 [pdf, ps, other]
The chemical composition of red giants in 47 Tucanae - I. Fundamental parameters and chemical abundance patterns
- Virtual Journal - Volume 12, Issue 25 - article #57
- A. O. Thygesen, L. Sbordone, S. Andrievsky, S. Korotin, D. Yong, S. Zaggia, H.-G. Ludwig, R. Collet, M. Asplund, P. Ventura, et al. (3 more) F. DÃ¢Â€Â™Antona, J. MelÃƒÂ©ndez and A. DÃ¢Â€Â™Ercole
- Astronomy and Astrophysics - Volume: 572, Issue: December 2014
- http://dx.doi.org/10.1051/0004-6361/201424533
  Abstract Full HTML PDF (1.108 MB) ePUB (2.986 MB) References Online Material Tables at CDS NASA ADS Abstract Service
Oxygen in the early Galaxy: OH lines as tracers of oxygen abundance in extremely metal-poor giant stars
- Virtual Journal - Volume 12, Issue 22 - article #13
- A. Kucinskas, V. Dobrovolskas, P. Bonifacio, E. Caffau, H.-G. Ludwig, M. Steffen, M. Spite
- arXiv.org - Astrophysics - Volume: 2014, Issue: 12 Sep
- arXiv:1409.3153 [pdf, ps, other]
The chemical composition of red giants in 47 Tucanae I: Fundamental parameters and chemical abundance patterns
- Virtual Journal - Volume 12, Issue 22 - article #23
- A. O. Thygesen, L. Sbordone, S. Andrievsky, S. Korotin, D. Yong, S. Zaggia, H.-G. Ludwig, R. Collet, M. Asplund, F. D'Antona, J. Meléndez, A. D'Ercole
- arXiv.org - Astrophysics - Volume: 2014, Issue: 19 Sep
- arXiv:1409.4694 [pdf, other]
Clues on the Galactic evolution of sulphur from star clusters
- Virtual Journal - Volume 12, Issue 22 - article #94
- E. Caffau, L. Monaco, M. Spite, P. Bonifacio, G. Carraro, H.-G. Ludwig, S. Villanova, Y. Beletsky and L. Sbordone
- Astronomy and Astrophysics - Volume: 568, Issue: August 2014
- http://dx.doi.org/10.1051/0004-6361/201423873
  Abstract Full HTML PDF (637.5 KB) ePUB (1.355 MB) References NASA ADS Abstract Service
Abundances of lithium, oxygen, and sodium in the turn-off stars of Galactic globular cluster 47 Tucanae
- Virtual Journal - Volume 12, Issue 21 - article #94
- V. Dobrovolskas, A. KuÃ„Âinskas, P. Bonifacio, S. A. Korotin, M. Steffen, L. Sbordone, E. Caffau, H.-G. Ludwig, F. Royer and D. PrakapaviÃ„Âius
- Astronomy and Astrophysics - Volume: 565, Issue: May 2014
- http://dx.doi.org/10.1051/0004-6361/201322868
  Abstract Full HTML PDF (1.179 MB) ePUB (2.028 MB) References Online Material NASA ADS Abstract Service
White Dwarfs in the UKIRT Infrared Deep Sky Survey Data Release 9
- Virtual Journal - Volume 12, Issue 21 - article #144
- P.-E. Tremblay, S. K. Leggett, N. Lodieu, B. Freytag, P. Bergeron, J. S. Kalirai, and H.-G. Ludwig
- The Astrophysical Journal - Volume: 788, Issue: 2
- View article PDF (1.04 MB)
Clues on the Galactic evolution of sulphur from star clusters
- Virtual Journal - Volume 12, Issue 20 - article #130
- E. Caffau, L. Monaco, M. Spite, P. Bonifacio, G. Carraro, H.-G. Ludwig, S. Villanova, Y. Beletsky, L. Sbordone
- arXiv.org - Astrophysics - Volume: 2014, Issue: 4 Jul
- arXiv:1407.0485 [pdf, ps, other]
Isotope spectroscopy
- Virtual Journal - Volume 12, Issue 4 - article #27
- E. Caffau, M. Steffen, P. Bonifacio, H.-G. Ludwig, L. Monaco, G. Lo Curto and I. Kamp
- Astronomische Nachrichten - Volume: 335, Issue: 1
- Abstract PDF(227K)References Request Permissions
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
X-shooter GTO: evidence for a population of extremely metal-poor, alpha-poor stars
- Virtual Journal - Volume 11, Issue 51 - article #19
- E. Caffau, P. Bonifacio, P. FranÃƒÂ§ois, L. Sbordone, M. Spite, L. Monaco, B. Plez, F. Spite, S. Zaggia, H.-G. Ludwig, et al. (5 more) R. Cayrel, P. Molaro, S. Randich, F. Hammer and V. Hill
- Astronomy and Astrophysics - Volume: 560, Issue: December 2013
- http://dx.doi.org/10.1051/0004-6361/201322213
  Abstract Full HTML PDF (559.9 KB) References NASA ADS Abstract Service
Abundances of lithium, oxygen, and sodium in the turn-off stars of Galactic globular cluster 47 Tuc
- Virtual Journal - Volume 11, Issue 45 - article #1
- V. Dobrovolskas, A. Kučinskas, P. Bonifacio, S. A. Korotin, L. Sbordone, E. Caffau, D. Prakapavičius, M. Steffen, H.-G. Ludwig, F. Royer
- arXiv.org - Astrophysics - Volume: 2013, Issue: 8 Nov
- arXiv:1311.1072 [pdf, ps, other]
X-Shooter GTO: evidence for a population of extremely metal-poor, alpha-poor stars
- Virtual Journal - Volume 11, Issue 38 - article #18
- E. Caffau, P. Bonifacio, P. Francois, L. Sbordone, M. Spite, L. Monaco, B. Plez, F. Spite, S. Zaggia, H.-G. Ludwig, R. Cayrel, P. Molaro, S. Randich, F. Hammer, V. Hill
- arXiv.org - Astrophysics - Volume: 2013, Issue: 20 Sep
- arXiv:1309.4913 [pdf, ps, other]
The photospheric solar oxygen project - II. Non-concordance of the oxygen abundance derived from two forbidden lines
- Virtual Journal - Volume 11, Issue 26 - article #43
- E. Caffau, H.-G. Ludwig, J.-M. Malherbe, P. Bonifacio, M. Steffen and L. Monaco
- Astronomy and Astrophysics - Volume: 554, Issue: June 2013
- http://dx.doi.org/10.1051/0004-6361/201321446
  Abstract Full HTML PDF (324.8 KB) References NASA ADS Abstract Service
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
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]
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]
Spectroscopic and photometric studies of white dwarfs in the Hyades
- Virtual Journal - Volume 10, Issue 51 - article #71
- P.-E. Tremblay, E. Schilbach, S. RÃƒÂ¶ser, S. Jordan, H.-G. Ludwig and B. Goldman
- Astronomy and Astrophysics - Volume: 547, Issue: November 2012
- http://dx.doi.org/10.1051/0004-6361/201220057
  Abstract | Full HTML | PDF (422.5 KB) | References | NASA ADS Abstract Service
Three-dimensional hydrodynamical CO⁵BOLD model atmospheres of red giant stars - I. Atmospheric structure of a giant located near the RGB tip
- Virtual Journal - Volume 10, Issue 51 - article #74
- H.-G. Ludwig and A. KuÃ„Âinskas
- Astronomy and Astrophysics - Volume: 547, Issue: November 2012
- http://dx.doi.org/10.1051/0004-6361/201220264
  Abstract | Full HTML | PDF (11.04 MB) | References | NASA ADS Abstract Service
Spectroscopic and photometric studies of white dwarfs in the Hyades
- Virtual Journal - Volume 10, Issue 38 - article #11
- P.-E. Tremblay, E. Schilbach, S. Röser, S. Jordan, H.-G. Ludwig, B. Goldman
- arXiv.org - Astrophysics - Volume: 2012, Issue: 21 Sep
- arXiv:1209.4309 [pdf, ps, other]
6Li detection in metal-poor stars: can 3D model atmospheres solve the second lithium problem?
- Virtual Journal - Volume 10, Issue 24 - article #1
- M. Steffen, R. Cayrel, E. Caffau, P. Bonifacio, H.-G. Ludwig, M. Spite
- arXiv.org - Astrophysics - Volume: 2012, Issue: 15 Jun
- arXiv:1206.2239 [pdf, ps, other]
Chemical abundances of distant extremely metal-poor unevolved stars
- Virtual Journal - Volume 10, Issue 15 - article #2
- P. Bonifacio (1), L. Sbordone (2,1,3), E. Caffau (2,1), H.-G. Ludwig (2,1), M. Spite (1), J. I. González Hernández (4,5), N. T. Behara (6) ((1) GEPI, Observatoire de Paris, CNRS, Univ. Paris Diderot, (2) Zentrum für Astronomie der Universität Heidelberg, Landessternwarte, (3) Max-Planck Institut für Astrophysik, (4) Instituto de Astrofısica de Canarias, (5) Depto. Astrofısica, Universidad de La Laguna, (6) Institut d'Astronomie et d'Astrophysique, Université Libre de Bruxelles)
- arXiv.org - Astrophysics - Volume: 2012, Issue: 13 Apr
- arXiv:1204.1641 [pdf, ps, other]
A primordial star in the heart of the Lion
- Virtual Journal - Volume 10, Issue 11 - article #4
- E. Caffau (1,2,3), P. Bonifacio (2,3), P. François (2,4), M. Spite (2), F. Spite (2), S. Zaggia (5), H.-G. Ludwig (1,2), M. Steffen (6), L. Mashonkina (7), L. Monaco (3), L. Sbordone (1,2), P. Molaro (8), R. Cayrel (2), B. Plez (9), V. Hill (10), F. Hammer (2), S. Randich (11) ((1) ZAH-LSW Heidelberg, (2) GEPI - Obs. de Paris, CNRS, Univ. Paris Diderot, (3) ESO - Santiago, (4) Univ. de Picardie Jules Verne,(5) INAF - Osservatorio Astronomico di Padova, (6) Leibniz Institut für Astrophysik Potsdam, (7) Institute of Astronomy, Russian Academy of Sciences, (8) INAF - Osservatorio Astronomico di Trieste, (9) LUPM - Univ. Montpellier 2, CNRS, (10) Univ. de Nice Sophia Antipolis, CNRS, OCA, Lab. Cassiopée, (11) INAF - Osservatorio Astrofisico di Arcetri)
- arXiv.org - Astrophysics - Volume: 2012, Issue: 16 Mar
- arXiv:1203.2607 [pdf, ps, other]
An extremely primitive halo star
- Virtual Journal - Volume 10, Issue 11 - article #6
- E. Caffau (1,2), P. Bonifacio (2), P. François (2,3) . L. Sbordone (1,4,2) . L. Monaco (5), M. Spite (2), F. Spite (2), H.-G. Ludwig (1,2), R. Cayrel (2), S. Zaggia (6), F. Hammer (2), S. Randich (7), P. Molaro (8), V. Hill (9) ((1) ZAH-LSW Heidelberg, (2) GEPI - Obs. de Paris, CNRS, Univ. Paris Diderot, (3) Univ. de Picardie Jules Verne,(4) Max Planck Institut für Astrophysik, (5) ESO - Santiago, (6) INAF - Osservatorio Astronomico di Padova, (7) INAF - Osservatorio Astrofisico di Arcetri, (8) INAF - Osservatorio Astronomico di Trieste, (9) Univ. de Nice Sophia Antipolis, CNRS, OCA, Lab. Cassiopée)
- arXiv.org - Astrophysics - Volume: 2012, Issue: 16 Mar
- arXiv:1203.2612 [pdf]
Barium abundance in red giants of NGC 6752. Non-local thermodynamic equilibrium and three-dimensional effects
- Virtual Journal - Volume 10, Issue 11 - article #7
- V. Dobrovolskas (1), A. Kučinskas (2,1), S. M. Andrievsky (3,4), S. A. Korotin (3), T. V. Mishenina (3), P. Bonifacio (4), H.-G. Ludwig (5), E. Caffau (5,4) ((1) Vilnius Univ. Astronomical Observatory, (2) Institute of Theoretical Physics and Astronomy, Vilnius Univ., (3) Department of Astronomy and Astronomical Observatory, Odessa National University, (4) GEPI, Obs. de Paris, (5) Zentrum für Astronomie der Universität Heidelberg)
- arXiv.org - Astrophysics - Volume: 2012, Issue: 16 Mar
- arXiv:1203.3124 [pdf, ps, other]
First Stars XIV. Sulphur abundances in extremely metal-poor (EMP) stars
- Virtual Journal - Volume 8, Issue 52 - article #6
- Monique Spite (GEPI), E. Caffau (GEPI, ZAU), S.M. Andrievsky (GEPI), S. A. Korotin, E. Depagne, F. Spite (GEPI), P. Bonifacio (GEPI), H.-G. Ludwig (ZAU), R. Cayrel (GEPI), P. Francois (GEPI), V. Hill (CASSIOPEE), B. Plez (GRAAL), J. Andersen (The Niels Bohr Institute, Astronomy Group), B. Barbuy, T. C. Beers (MSU), P. Molaro (INAF-OAT), B. Nordstrom (The Niels Bohr Institute, Astronomy Group), F. Primas (ESO)
- arXiv.org - Astrophysics - Volume: 2010, Issue: 24 Dec
- arXiv:1012.4358 [pdf, ps, other]
Radiative hydrodynamics simulations of red supergiant stars. III. Spectro-photocentric variability, photometric variability, and consequences on Gaia measurements
- Virtual Journal - Volume 8, Issue 52 - article #10
- A. Chiavassa, E. Pasquato, A. Jorissen, S. Sacuto, C. Babusiaux, B. Freytag, H.-G. Ludwig, P. Cruzalebes, Y. Rabbia, A. Spang, O. Chesneau
- arXiv.org - Astrophysics - Volume: 2010, Issue: 24 Dec
- arXiv:1012.5234 [pdf, ps, other]
Chemical abundances in metal-poor giants: limitations imposed by the use of classical 1D stellar atmosphere models
- Virtual Journal - Volume 8, Issue 42 - article #4
- V. Dobrovolskas, A. Kučinskas, H.-G. Ludwig, E. Caffau, J. Klevas, D. Prakapavičius
- arXiv.org - Astrophysics - Volume: 2010, Issue: 15 Oct
- arXiv:1010.2507 [pdf, ps, other]
Sulphur abundances in halo stars from multiplet 3 at 1045 nm (p 725-730)
- Virtual Journal - Volume 8, Issue 30 - article #16
- E. Caffau, L. Sbordone, H.-G. Ludwig, P. Bonifacio, M. Spite
- Astronomische Nachrichten - Volume: 331, Issue: 7
- Abstract | References | Full Text: PDF (Size: 131K)
Galactic Evolution of Oxygen: OH lines in 3D hydrodynamical model atmospheres
- Virtual Journal - Volume 8, Issue 21 - article #4
- J. I. Gonzalez Hernandez, P. Bonifacio, H.-G. Ludwig, E. Caffau, N. T. Behara, B. Freytag
- arXiv.org - Astrophysics - Volume: 2010, Issue: 21 May
- arXiv:1005.3754 [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]
Three carbon-enhanced metal-poor dwarf stars from the SDSS - Chemical abundances from CO^5BOLD 3D hydrodynamical model atmospheres
- Virtual Journal - Volume 8, Issue 7 - article #15
- N.T. Behara, P. Bonifacio, H.-G. Ludwig, L. Sbordone, J.I. González Hernández, E. Caffau
- arXiv.org - Astrophysics - Volume: 2010, Issue: 12 Feb
- arXiv:1002.1670 [pdf, ps, other]
Convection and 6Li in the atmospheres of metal-poor halo stars
- Virtual Journal - Volume 8, Issue 4 - article #3
- M. Steffen, R. Cayrel, P. Bonifacio, H.-G. Ludwig, E. Caffau
- arXiv.org - Astrophysics - Volume: 2010, Issue: 22 Jan
- arXiv:1001.3274 [ps, pdf, other]
Main-Sequence and sub-giant stars in the Globular Cluster NGC6397: The complex evolution of the lithium abundance
- Virtual Journal - Volume 7, Issue 52 - article #6
- J. I. González Hernández, P. Bonifacio, E. Caffau, M. Steffen, H.-G. Ludwig, N. Behara, L. Sbordone, R. Cayrel, S. Zaggia
- arXiv.org - Astrophysics - Volume: 2009, Issue: 25 Dec
- arXiv:0912.4105 [ps, pdf, other]
The Solar Photospheric Nitrogen Abundance: Determination with 3D and 1D Model Atmospheres
- Virtual Journal - Volume 7, Issue 49 - article #26
- E. Maiorca, E. Caffau, P. Bonifacio, M. Busso, R. Faraggiana, M. Steffen, H.-G. Ludwig, I. Kamp
- arXiv.org - Astrophysics - Volume: 2009, Issue: 4 Dec
- arXiv:0912.0375 [ps, pdf, other]
6Li in metal-poor halo stars: real or spurious?
- Virtual Journal - Volume 7, Issue 45 - article #1
- M. Steffen, R. Cayrel, P. Bonifacio, H.-G. Ludwig, E. Caffau
- arXiv.org - Astrophysics - Volume: 2009, Issue: 6 Nov
- arXiv:0910.5917 [ps, pdf, other]
Effects of granulation on neutral copper resonance lines in metal-poor stars
- Virtual Journal - Volume 7, Issue 44 - article #7
- P. Bonifacio (1,2,3), E. Caffau (2), H.-G. Ludwig (1,2) ((1) CIFIST Marie Curie Excellence Team, (2) GEPI, Observatoire de Paris, CNRS, Univ. Paris Diderot, (3) INAF - OA Trieste)
- arXiv.org - Astrophysics - Volume: 2009, Issue: 30 Oct
- arXiv:0910.4730 [ps, pdf, other]
Solar abundances and granulation effects
- Virtual Journal - Volume 7, Issue 44 - article #13
- E. Caffau (1), H.-G. Ludwig (2,1), M. Steffen (3) ((1) GEPI, Observatoire de Paris, CNRS, Univ. Paris Diderot, (2) CIFIST Marie Curie Excellence Team, (3) Astrophysikalisches Institut Potsdam)
- arXiv.org - Astrophysics - Volume: 2009, Issue: 30 Oct
- arXiv:0910.4733 [ps, pdf, other]
3D hydrodynamical simulations of stellar photospheres with the CO5BOLD code: photometric colors of a late-type giant
- Virtual Journal - Volume 7, Issue 43 - article #5
- A. Kucinskas, H.-G. Ludwig, E. Caffau, M. Steffen
- arXiv.org - Astrophysics - Volume: 2009, Issue: 23 Oct
- arXiv:0910.3412 [ps, pdf, other]
Lithium abundances of Main Sequence and Sub-Giant stars in the Globular Cluster NGC 6397
- Virtual Journal - Volume 7, Issue 42 - article #5
- J. I. González Hernández, P. Bonifacio, E. Caffau, M. Steffen, H.-G. Ludwig, N. Behara, L. Sbordone, R. Cayrel, S. Zaggia
- arXiv.org - Astrophysics - Volume: 2009, Issue: 16 Oct
- arXiv:0910.2305 [ps, pdf, other]
Lithium in the globular cluster NGC 6397 - Evidence for dependence on evolutionary status
- Virtual Journal - Volume 7, Issue 41 - article #28
- J. I. González Hernández, P. Bonifacio, E. Caffau, M. Steffen, H.-G. Ludwig, N. T. Behara, L. Sbordone, R. Cayrel, and S. Zaggia
- Astronomy and Astrophysics - Volume: 505, Issue: 2
- Abstract | PDF file (393.6 KB) | PS file (287.6 KB)
Lithium in the Globular Cluster NGC 6397: Evidence for dependence on evolutionary status
- Virtual Journal - Volume 7, Issue 37 - article #5
- J. I. Gonzalez Hernandez, P. Bonifacio, E. Caffau, M. Steffen, H.-G. Ludwig, N. T. Behara, L. Sbordone, R. Cayrel, S. Zaggia
- arXiv.org - Astrophysics - Volume: 2009, Issue: 11 Sep
- arXiv:0909.0983 [ps, pdf, other]
Detailed analyses of three neutron-capture-rich carbon-enhanced metal-poor stars
- Virtual Journal - Volume 7, Issue 36 - article #5
- N.T. Behara (1,2), P. Bonifacio (1,2,3), H.-G. Ludwig (1,2), L. Sbordone (1,2), J.I. Gonzalez Hernandez (1,2), E. Caffau (2) ((1)CIFIST Marie Curie Excellence Team, (2) GEPI, Observatoire de Paris CNRS, Universite Paris Diderot, (3) INAF- Osservatorio Astronomico di Trieste)
- arXiv.org - Astrophysics - Volume: 2009, Issue: 4 Sep
- arXiv:0909.0180 [ps, pdf, other]
The CIFIST 3D model atmosphere grid
- Virtual Journal - Volume 7, Issue 36 - article #13
- H.-G. Ludwig, E. Caffau, M. Steffen, B. Freytag, P. Bonifacio, A. Kucinskas
- arXiv.org - Astrophysics - Volume: 2009, Issue: 4 Sep
- arXiv:0908.4496 [ps, pdf, other]
The solar photospheric nitrogen abundance - Analysis of atomic transitions with 3D and 1D model atmospheres
- Virtual Journal - Volume 7, Issue 20 - article #27
- E. Caffau, E. Maiorca, P. Bonifacio, R. Faraggiana, M. Steffen, H.-G. Ludwig, I. Kamp, and M. Busso
- Astronomy and Astrophysics - Volume: 498, Issue: 3
- Abstract | PDF file (246.5 KB) | PS file (167.6 KB)
Sulphur in the Globular Clusters 47 Tucanae and NGC 6752
- Virtual Journal - Volume 7, Issue 15 - article #6
- L. Sbordone, M. Limongi, A. Chieffi, E. Caffau, H.-G. Ludwig, P. Bonifacio
- arXiv.org - Astrophysics - Volume: 2009, Issue: 10 Apr
- arXiv:0904.1417 [ps, pdf, other]
Extremely metal-poor stars from the SDSS
- Virtual Journal - Volume 6, Issue 38 - article #7
- H.-G. Ludwig, P. Bonifacio, E. Caffau, N.T. Behara, J.I. Gonzalez Hernandez, L. Sbordone
- arXiv.org - Astrophysics - Volume: 2008, Issue: 18 Sep
- arXiv:0809.2948 [ps, pdf, other]
The photospheric solar oxygen project - I. Abundance analysis of atomic lines and influence of atmospheric models
- Virtual Journal - Volume 6, Issue 37 - article #14
- E. Caffau, H.-G. Ludwig, M. Steffen, T. R. Ayres, P. Bonifacio, R. Cayrel, B. Freytag, and B. Plez
- Astronomy and Astrophysics - Volume: 488, Issue: 3
- Abstract | PDF file (414.5 KB) | PS file (300.3 KB)
The solar photospheric abundance of hafnium and thorium - Results from CO⁵BOLD 3D hydrodynamic model atmospheres
- Virtual Journal - Volume 6, Issue 19 - article #12
- E. Caffau, L. Sbordone, H.-G. Ludwig, P. Bonifacio, M. Steffen, and N. T. Behara
- Astronomy and Astrophysics - Volume: 483, Issue: 2
- Abstract | PDF file (318.2 KB) | PS file (232.8 KB)
The solar photospheric abundance of hafnium and thorium. Results from CO5BOLD 3D hydrodynamic model atmospheres
- Virtual Journal - Volume 6, Issue 13 - article #7
- Elisabetta Caffau (GEPI), L. Sbordone (GEPI, Cifist), H.-G. Ludwig (GEPI, Cifist), P. Bonifacio (GEPI, Cifist, Inaf-Oat), M. Steffen (AIP), N.T. Behara (GEPI, Cifist)
- arXiv.org - Astrophysics - Volume: 2008, Issue: 27 Mar
- arXiv:0803.3585 [ps, pdf, other]
The solar photospheric abundance of europium. Results from CO5BOLD 3-D hydrodynamical model atmospheres
- Virtual Journal - Volume 6, Issue 10 - article #29
- A. Mucciarelli (1), E. Caffau (2), B. Freytag (3), H.-G. Ludwig (2,4), P. Bonifacio (2,4,5) ((1) Dipartimento di Astronomia, Universitá degli Studi di Bologna, Bologna, Italy, (2) GEPI, Observatoire de Paris, France, (3) Centre de Recherche Astrophysique de Lyon, Université de Lyon, Lyon, France, (4) CIFIST, Marie Curie Excellence Team, (5) Istituto Nazionale di Astrofisica, Osservatorio Astronomico di Trieste, Trieste, Italy)
- arXiv.org - Astrophysics - Volume: 2008, Issue: 6 Mar
- arXiv:0803.0863 [ps, pdf, other]
First stars XI. Chemical composition of the extremely metal-poor dwarfs in the binary CS 22876-032
- Virtual Journal - Volume 6, Issue 9 - article #5
- J. I. González Hernández, P. Bonifacio, H.-G. Ludwig, E. Caffau, M. Spite, F. Spite, R. Cayrel, P. Molaro, V. Hill, P. François, B. Plez, T. C. Beers, T. Sivarani, J. Andersen, B. Barbuy, E. Depagne, B. Nordström, and F. Primas
- Astronomy and Astrophysics - Volume: 480, Issue: 1
- Abstract | PDF file (648.5 KB) | PS file (240.7 KB)
The ESO Large Programme First Stars
- Virtual Journal - Volume 6, Issue 2 - article #36
- P. Bonifacio (1,2,3), J. Andersen (4,5), S. Andrievsky (6), B. Barbuy (7), T. C. Beers (8), E. Caffau (2), R. Cayrel (2), E. Depagne (9), P. Francois (2), J. I. Gonzalez Hernandez (1,2), C. J. Hansen (10), F. Herwig (11), V. Hill (2), S. A. Korotin (6), H.-G. Ludwig (1,2), P. Molaro (3), B. Nordstrom (4), B. Plez (12), F. Primas (10), T. Sivarani (8), F. Spite (2), M. Spite (2) ((1) CIFIST Marie Curie Excellence Team, (2) GEPI, Observatoire de Paris, CNRS, Universite' Paris Diderot, (3) Istituto Nazionale di Astrofisica, Osservatorio Astronomico di Trieste, (4) The Niels Bohr Institute, Astronomy, (5) Nordic Optical Telescope, (6) Department of Astronomy and Astronomical Observatory, Odessa National University, (7) Universidade de Sao Paulo, Departamento de Astronomia, (8) Department of Physics & Astronomy and JINA: Joint Institute for Nuclear Astrophysics, Michigan State University, (9) Las Cumbres Observatory, Santa Barbara, (10) European Southern Observatory (ESO), (11) Keele Astrophysics Group, School of Physical and Geographical Sciences, Keele University, (12) GRAAL, Université de Montpellier II)
- arXiv.org - Astrophysics - Volume: 2008, Issue: 10 Jan
- arXiv:0801.1293 [ps, pdf, other]
First Stars XI. Chemical composition of the extremely metal-poor dwarfs in the binary CS 22876--032
- Virtual Journal - Volume 5, Issue 51 - article #27
- J. I. González Hernández, P. Bonifacio, H.-G. Ludwig, E. Caffau, M. Spite, F. Spite, R. Cayrel, P. Molaro, V. Hill, P. François, B. Plez, T. C. Beers, T. Sivarani, J. Andersen, B. Barbuy, E. Depagne, B. Nordström, F. Primas
- arXiv.org - Astrophysics - Volume: 2007, Issue: 20 Dec
- arXiv:0712.2949 [ps, pdf, other]
Line shift, line asymmetry, and the $mathsf$

Inter-network regions of the Sun at millimetre wavelengths

Virtual Journal - Volume 5, Issue 20 - article #23
S. Wedemeyer-Boehm, H.-G. Ludwig, M. Steffen, J. Leenaarts, B. Freytag

ArXiv - Astrophysics

arXiv:0705.2304 [ps, pdf, other]

Theoretical modelling of late-type giant atmospheres: preparing for Gaia

Virtual Journal - Volume 3, Issue 10 - article #6
A. Kucinskas, I. Brott, P.H. Hauschildt, H.-G. Ludwig, L. Lindegren, T. Tanabe, V. Vansevicius

arXiv - Astrophysics – March 2005

astro-ph/0503208 [ abs , ps , pdf , other ]

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