Orbital Stability of Planets in Binary Systems: A New Look at Old Results

About half of all known stellar systems with Sun-like stars consist of two or more stars, significantly affecting the orbital stability of any planet in these systems. This observational evidence has prompted a large array of theoretical research, including the derivation of mathematically stringent criteria for the orbital stability of planets in stellar binary systems, valid for the "coplanar circular restricted three-body problem". In the following, we use these criteria to explore the validity of results from previous theoretical studies.Comment: 3 pages, 1 figure; submitted to: Exoplanets: Detection, Formation and Dynamics, IAU Symposium 249, eds. Y.-S. Sun, S. Ferraz-Mello, and J.-L. Zhou (Cambridge: Cambridge University Press

A note on "A nonequilibrium theory of thermoelastic superconductors" by S-A. Zhou and K. Miya

In this note it is shown how the theory of S.-A. Zhou and K. Miya can be modified to make it completely thermodynamically consistent. The theory presented here obeys both the principle ot equipresence as well as Clausius-Duhem inequality in extended form. The thus derived results are identical to those of S.A. Zhou and K. Miya. It is shown that the final results depend explicitly on the choice made for the tree energy functional

Habitability of Super-Earths: Gliese 581c and 581d

The unexpected diversity of exoplanets includes a growing number of super-Earth planets, i.e., exoplanets with masses smaller than 10 Earth masses. Unlike the larger exoplanets previously found, these smaller planets are more likely to have a similar chemical and mineralogical composition to the Earth. We present a thermal evolution model for super-Earth planets to identify the sources and sinks of atmospheric carbon dioxide. The photosynthesis-sustaining habitable zone (pHZ) is determined by the limits of biological productivity on the planetary surface. We apply our model to calculate the habitability of the two super-Earths in the Gliese 581 system. The super-Earth Gl 581c is clearly outside the pHZ, while Gl 581d is at the outer edge of the pHZ. Therefore it could at least harbor some primitive forms of life.Comment: 3 pages, 1 figure; submitted to: Exoplanets: Detection, Formation and Dynamics, IAU Symposium 249, eds. Y.-S. Sun, S. Ferraz-Mello, and J.-L. Zhou (Cambridge: Cambridge University Press

Discussion of "EQUI-energy sampler" by Kou, Zhou and Wong

Discussion of ``EQUI-energy sampler'' by Kou, Zhou and Wong [math.ST/0507080]Comment: Published at http://dx.doi.org/10.1214/009053606000000506 in the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org

Vol. 56, No. 3, pp 492-566

Programme de l’année 2012-2013 : I. Particularismes régionaux dans les inscriptions sur bronze des Shang et des Zhou (env. XIIIe-IIIe s. av. J.-C.) : le cas du Henan ; partie 3 : Sanmenxia. — II. Initiation à la lecture de documents anciens : les inventaires funéraires (Ve s. av. J.-C. - IIIe s. apr. J.-C.)