Sponsored by:

Conseil Régional de la Région Centre,
Ministère de la Recherche,
Ville de Blois.

Scientific programme committee

Alain Blanchard, France
Ludwik Celnikier, France
Gabriel Chardin, France
Alain Coc, France
Marian Douspis, France
Richard Ellis, USA
Daniel Kunth, France
Grant Mathews, USA
Reynald Pain, France
Joe Silk, UK
Jean Tran Thanh Van, France
Marie Treyer, France
Sylvie Vauclair, France
Christophe Yèche, France


This is an announcement and call for papers for an international conference which will be held in the Château of Blois, in France's Loire Valley.

Matter and Energy in the Universe: from nucleosynthesis to cosmology is articulated around our increasingly detailed understanding of the processes involved in the creation of the elements and about our increasingly confused picture of the content of the Universe. The year 2007 fmarks the fiftieth anniversary of two groundbreaking papers (the famous B2FH paper, and also a slightly less well known paper by A. Cameron) which finally put stellar nucleosynthesis on the map, and almost the sixtieth anniversary of the first quantitative calculations of big bang nucleosynthesis; although this latter paper turned out to be fundamentally flawed insofar as nucleosynthesis is concerned, it did lead directly to Alpher and Hermann's prediction of the ubiquitous cosmic microwave background radiation, whose detailed study using instruments on the COBE satellite earned this year's Nobel prize for physics.

It thus seems appropriate to "stand back" and survey what has been achieved, and (especially) to highlight the puzzles which remain to be solved.

Matter and energy in the Universe? will be organised around a number of basic themes, including:

  • the contents of the Universe
  • abundance determinations
  • primordial nucleosynthesis
  • stellar thermonuclear nucleosynthesis
  • the nucleidic evolution of galaxies
  • cosmological cosmic rays, galactic cosmic rays and stellar energetic particles
  • dark matter, dark energy: what do we really know, and what can we surmise
  • the future.

The conference will consist of plenary sessions for invited indepth oral presentations (review talks and talks on specific specialised topics), and contributed papers, in the form of relatively short oral papers or posters. We will aim to achieve a balance between review talks, provocative talks given by recognized specialists, and shorter contributions, special emphasis being placed on participation by younger researchers and post-docs. If the need arises (i.e. if so many short papers are proposed that plenary sessions are insufficient), parallel sessions will be organised - please do not hesitate to contribute your work - time can always be found!

This conference will be the 19th in a series of international mulitidisciplinary meetings which have in the past covered many topics in physics, astronomy and biology. All sessions take place in the Château of Blois, a beautiful renaissance castle which has housed many French kings, and notably François 1st. Meals are served in the castle to all participants, in order to encourage interaction between scientists at all levels. Participation is limited to about 150 persons.

The detailed scientific programme is currently under development; if you urgently need information which is currently not available on this site, you may contact L. M. Celnikier, at the email address:


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