Publications (15)
Chemistry of heavy elements in the Dark Ages
P. Vonlanthen, T. Rauscher, C. Winteler +3
Primordial molecules were formed during the Dark Ages, i.e. the time between recombination and reionization in the early Universe. The purpose of this article is to analyze the for…
Triple Experiment Spectrum of the Sunyaev-Zeldovich Effect in the Coma Cluster: H_0
E. S. Battistelli, M. De Petris, L. Lamagna +11
The Sunyaev-Zeldovich (SZ) effect was previously measured in the Coma cluster by the Owens Valley Radio Observatory and Millimeter and IR Testa Grigia Observatory experiments and r…
Shape and geometry of galaxy clusters and the SZ effect
L. Grenacher, R. Piffaretti, D. Puy +2
We discuss the influence of the finite extension and the geometry of clusters of galaxies, as well as of the polytropic temperature profile, on the determination of the Hubble cons…
Supernova and Cosmology
M. Signore, D. Puy
These lecture notes intend to form a short pedagogical introduction to the use of typical type Ia-Supernovae (hereafter SNIa) as standard candles to determine the energy density of…
From nuclei to atoms and molecules: the chemical history of the early Universe
D. Puy, M. Signore
The "dark age" of the Universe is generally pointed out as the period between the recombination epoch and the horizon of current observations (z=5-6). The arrow of time in the cosm…
Asphericity of galaxy clusters and Sunyaev-Zel'dovich effect
D. Puy, L. Grenacher, Ph. Jetzer +1
In this paper we investigate the Sunyaev-Zel'dovich (SZ) effect and the X-ray surface brightness for clusters of galaxies with a non-spherical mass distribution. In particular, we…