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1. Flames High Resolution Spectroscopy of RGB Stars in the Carina Dwarf Spheroidal Galaxy

Author

Lemasle, B., Hill, V., Tolstoy, E., Venn, K., Koleva, M, Prugniel, P, Vauglin, and Kapteyn Astronomical Institute

Subjects
Physics, Star formation, Astrophysics::High Energy Astrophysical Phenomena, Milky Way, General Engineering, Astronomy, Astronomy and Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Star count, Dwarf spheroidal galaxy, Red-giant branch, Stars, Space and Planetary Science, Astrophysics::Solar and Stellar Astrophysics, Astrophysics::Earth and Planetary Astrophysics, Halo, Spectroscopy, Astrophysics::Galaxy Astrophysics
Abstract

Carina is a small and faint classical dwarf spheroidal galaxy in the halo of the Milky Way with a highly episodic star formation history (e.g., Hurley-Keller et al. 1998). Using VLT/FLAMES in high resolution mode, we significantly increase the sample of stars with abundance determinations in Carina, adding to earlier work with UVES. Here we present our preliminary abundances for Fe, Mg, Ca and Ba in 23 red giant branch stars in the centre of Carina.

Published
2011
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2. Chapter 3 : Oxygen Production and Destruction

Author

Stasińska, G., primary, Prantzos, N., additional, Meynet, G., additional, Simón-Díaz, S., additional, Chiappini, C., additional, Dessauges-Zavadsky, M., additional, Charbonnel, C., additional, Ludwig, H.-G., additional, Mendoza, C., additional, Grevesse, N., additional, Arnould, M., additional, Barbuy, B., additional, Lebreton, Y., additional, Decourchelle, A., additional, Hill, V., additional, Ferrando, P., additional, Hébrard, G., additional, Durret, F., additional, Katsuma, M., additional, and Zeippen, C.J., additional

Published
2012
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3. Foreword

Author

Stasińska, G., primary, Prantzos, N., additional, Meynet, G., additional, Simón-Díaz, S., additional, Chiappini, C., additional, Dessauges-Zavadsky, M., additional, Charbonnel, C., additional, Ludwig, H.-G., additional, Mendoza, C., additional, Grevesse, N., additional, Arnould, M., additional, Barbuy, B., additional, Lebreton, Y., additional, Decourchelle, A., additional, Hill, V., additional, Ferrando, P., additional, Hébrard, G., additional, Durret, F., additional, Katsuma, M., additional, and Zeippen, C.J., additional

Published
2012
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4. Chapter 2 : A Panorama of Oxygen in the Universe

Author

Stasińska, G., primary, Prantzos, N., additional, Meynet, G., additional, Simón-Díaz, S., additional, Chiappini, C., additional, Dessauges-Zavadsky, M., additional, Charbonnel, C., additional, Ludwig, H.-G., additional, Mendoza, C., additional, Grevesse, N., additional, Arnould, M., additional, Barbuy, B., additional, Lebreton, Y., additional, Decourchelle, A., additional, Hill, V., additional, Ferrando, P., additional, Hébrard, G., additional, Durret, F., additional, Katsuma, M., additional, and Zeippen, C.J., additional

Published
2012
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5. Appendix A : The atomic physics of oxygen

Author

Stasińska, G., primary, Prantzos, N., additional, Meynet, G., additional, Simón-Díaz, S., additional, Chiappini, C., additional, Dessauges-Zavadsky, M., additional, Charbonnel, C., additional, Ludwig, H.-G., additional, Mendoza, C., additional, Grevesse, N., additional, Arnould, M., additional, Barbuy, B., additional, Lebreton, Y., additional, Decourchelle, A., additional, Hill, V., additional, Ferrando, P., additional, Hébrard, G., additional, Durret, F., additional, Katsuma, M., additional, and Zeippen, C.J., additional

Published
2012
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6. Chapter 1 : How to Derive Oxygen Abundances

Author

Stasińska, G., primary, Prantzos, N., additional, Meynet, G., additional, Simón-Díaz, S., additional, Chiappini, C., additional, Dessauges-Zavadsky, M., additional, Charbonnel, C., additional, Ludwig, H.-G., additional, Mendoza, C., additional, Grevesse, N., additional, Arnould, M., additional, Barbuy, B., additional, Lebreton, Y., additional, Decourchelle, A., additional, Hill, V., additional, Ferrando, P., additional, Hébrard, G., additional, Durret, F., additional, Katsuma, M., additional, and Zeippen, C.J., additional

Published
2012
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7. Chapter 4 : The Evolution of Oxygen in Galaxies

Author

Stasińska, G., primary, Prantzos, N., additional, Meynet, G., additional, Simón-Díaz, S., additional, Chiappini, C., additional, Dessauges-Zavadsky, M., additional, Charbonnel, C., additional, Ludwig, H.-G., additional, Mendoza, C., additional, Grevesse, N., additional, Arnould, M., additional, Barbuy, B., additional, Lebreton, Y., additional, Decourchelle, A., additional, Hill, V., additional, Ferrando, P., additional, Hébrard, G., additional, Durret, F., additional, Katsuma, M., additional, and Zeippen, C.J., additional

Published
2012
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8. The Search for Extremely Low-Metallicity Stars in Dwarf Galaxies Using the NIR Ca II Triplet

Author

Starkenburg, E., primary, Hill, V., additional, Tolstoy, E., additional, Hernández, J. I. González, additional, Irwin, M., additional, Helmi, A., additional, Boschman, L., additional, Francois, P., additional, Battaglia, G., additional, Jablonka, P., additional, Tafelmeyer, M., additional, Shetrone, M., additional, Venn, K., additional, and de Boer, T., additional

Published
2011
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9. GYES, A Multifibre Spectrograph for the CFHT

Author

Bonifacio, P., primary, Mignot, S., additional, Dournaux, J.-L., additional, François, P., additional, Caffau, E., additional, Royer, F., additional, Babusiaux, C., additional, Arenou, F., additional, Balkowski, C., additional, Bienaymé, O., additional, Briot, D., additional, Carlberg, R., additional, Cohen, M., additional, Dalton, G. B., additional, Famaey, B., additional, Fasola, G., additional, Frémat, Y., additional, Gómez, A., additional, Guinouard, I., additional, Haywood, M., additional, Hill, V., additional, Huet, J.-M., additional, Katz, D., additional, Horville, D., additional, Kudritzky, R., additional, Lallement, R., additional, Laporte, Ph., additional, de Laverny, P., additional, Lemasle, B., additional, Lewis, I. J., additional, Martayan, C., additional, Monier, R., additional, Mourard, D., additional, Nardetto, N., additional, Recio Blanco, A., additional, Robichon, N., additional, Robin, A. C., additional, Rodrigues, M., additional, Soubiran, C., additional, Turon, C., additional, Venn, K., additional, and Viala, Y., additional

Published
2010
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14. THE EVOLUTION OF OXYGEN IN GALAXIES.

Author

Arnould, M., Barbuy, B., Charbonnel, C., Chiappini, C., Decourchelle, A., Dessauges-Zavadsky, M., Durret, F., Ferrando, P., Grevesse, N., Hébrard, G., Hill, V., Katsuma, M., Lebreton, Y., Ludwig, Ho-G., Mendoza, C., Meynet, G., Prantzos, N., Símon-Díaz, S., Stasińska, G., and Zeippen, C. J.

Subjects
OXYGEN, GALAXIES, MOLECULAR evolution, STARS, NUCLEAR physics
Abstract

The article discusses the overall building of oxygen in galaxies over the ages as part of the aspect in the chemical evolution of galaxies. It defines chemical evolution as a study of the transformation of gas stars and the resulting evolution of the chemical composition of a galaxy. This galaxy for chemical evolution process offers a useful framework where one can interpret the body of observational data on elemental and isotopic abundances in stars of various ages.

Published
2011
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15. OXYGEN PRODUCTION AND DESTRUCTION.

Author

Arnould, M., Barbuy, B., Charbonnel, C., Chiappini, C., Decourchelle, A., Dessauges-Zavadsky, M., Durret, F., Ferrando, P., Grevesse, N., Hébrard, G., Hill, V., Katsuma, M., Lebreton, Y., Ludwig, Ho-G., Mendoza, C., Meynet, G., Prantzos, N., Símon-Díaz, S., Stasińska, G., and Zeippen, C. J.

Subjects
OXYGEN isotopes, GALAXIES, STARS, MOLECULAR evolution, GEOCHEMISTRY, GRAVITY
Abstract

In this chapter, we first introduce the nuclear processes by which oxygen isotopes can be synthesised and destroyed. We then describe the main astrophysical sites where these reactions may occur, with special emphasis on massive stars and low/intermediate mass stars. [ABSTRACT FROM AUTHOR]

Published
2011
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16. A PANORAMA OF OXYGEN IN THE UNIVERSE.

Author

Arnould, M., Barbuy, B., Charbonnel, C., Chiappini, C., Decourchelle, A., Dessauges-Zavadsky, M., Durret, F., Ferrando, P., Grevesse, N., Hébrard, G., Hill, V., Katsuma, M., Lebreton, Y., Ludwig, Ho-G., Mendoza, C., Meynet, G., Prantzos, N., Símon-Díaz, S., Stasińska, G., and Zeippen, C. J.

Subjects
STELLAR structure, EVOLUTIONARY theories, INTERIOR of stars, OXYGEN, SUN, SOLAR system
Abstract

The article presents the Sun as the benchmark for stellar structure and evolution theory where a validation of its theoretical model is crucial for an accurate description of the internal structure and evolution of other stars. It cites a new solar metallicity where oxygen contributes to 43% showing that the Sun is in agreement with surrounding insterstellar medium and nearby B-stars. It notes the use of 3D models as a step towards a more realistic description of the solar photospheric layers.

Published
2011
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17. HOW TO DERIVE OXYGEN ABUNDANCES.

Author

Stasińska, G., Prantzos, N., Meynet, G., Símon-Díaz, S., Chiappini, C., Dessauges-Zavadsky, M., Charbonnel, C., Ludwig, Ho-G., Mendoza, C., Grevesse, N., Arnould, M., Barbuy, B., Lebreton, Y., Decourchelle, A., Hill, V., Ferrando, P., Hébrard, G., Durret, F., Katsuma, M., and Zeippen, C. J.

Subjects
OXYGEN, ASTRONOMY, HYDROGEN, ATMOSPHERE, LOGARITHMS
Abstract

The article discusses ways to determine the abundance of oxygen in different regions of the Universe by first presenting different scales and notation used for said purpose. It notes that each field of astronomy has its own metrics like abundance, when applied to an element like oxygen, usually refers to the ratio of its number density to that of hydrogen. It cites the use of a scale in cool star atmospheres as abundances are determined in relation to reference value and not in absolute value.

Published
2011
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18. Evolution of the abundances of the light elements C, Mg, Al in the amosphere of extremely metal-poor stars ([Fe/H] ≲ -3)

Author

Spite, M., Cayrel, R., Spite, F., Hill, V., Francois, P., Plez, B., and Depagne, E.

Abstract

We present briefly some results of the ESO Large Program “First Stars" where it is shown that the abundance ratios of some light elements in the atmospheres of the extremely metal poor stars varies when the star evolves. This could be explained by a mixing with deep layers but such a mixing is not predicted by the theory.

Published
2005
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19. Foreword.

Author

Arnould, M., Barbuy, B., Charbonnel, C., Chiappini, C., Decourchelle, A., Dessauges-Zavadsky, M., Durret, F., Ferrando, P., Grevesse, N., Hébrard, G., Hill, V., Katsuma, M., Lebreton, Y., Ludwig, Ho-G., Mendoza, C., Meynet, G., Prantzos, N., Símon-Díaz, S., Stasińska, G., and Zeippen, C. J.

Subjects
PREFACES & forewords, OXYGEN
Abstract

A foreword to "Oxygen in the Universe," is presented.

Published
2011
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