ar X iv : a st ro - p h / 04 06 65 8 v 1 2 9 Ju n 20 04 Calibration of cameras of the H . E . S . S . detector

ar X iv : a st ro - p h / 04 06 56 7 v 1 2 4 Ju n 20 04 1

ar X iv : a st ro - p h / 04 06 33 8 v 2 1 6 Ju n 20 04 Do We Know of any Maunder Minimum Stars ? 1

Most stars previously identified as Maunder minimum stars are old stars evolved off of the main sequence. Analysis of activity measurements from the California and Carnegie Planet Search program stars and Hipparcos parallaxes implies that the canonical age-chromospheric activity relation breaks down for stars older than ∼ 6 Gyr when activity is calculated from Mount Wilson S values. Stars only ...

ar X iv : a st ro - p h / 04 06 33 8 v 1 1 5 Ju n 20 04 Do We Know of any Maunder Minimum Stars ? 1

Most stars previously identified as Maunder minimum stars are old stars evolved off of the main sequence. Analysis of activity measurements from the California and Carnegie Planet Search program stars and Hipparcos parallaxes implies that the canonical age-chromospheric activity relation breaks down for stars older than ∼ 6 Gyr when activity is calculated from Mount Wilson S values. Stars only ...

ar X iv : a st ro - p h / 04 06 40 4 v 1 1 7 Ju n 20 04 Power Law Stellar Distributions

The density profiles and other quantities of physical interest for spherically symmetric systems are computed by assuming that a collisionless stellar gas may relax to the non-Gaussian power law distribution suggested by the nonex-tensive kinetic theory. There are two different classes of solutions. The first class behaves like a subset of the polytropic Lane-Emden spheres, whereas the second o...

ar X iv : a st ro - p h / 04 06 67 0 v 1 2 9 Ju n 20 04 Inflation After WMAP

I examine the status of inflationary cosmology in light of the first-year data from the WMAP satellite, focusing on the simplest models of inflation: those driven by a single scalar field. The WMAP observation of the Cosmic Microwave Background is the first unified, self-consistent data set capable of putting meaningful constraints on the inflationary parameter space. WMAP provides significant ...