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10 papers · 1 filter
Control of Hamiltonian chaos as a possible tool to control anomalous transport in fusion plasmas
G. Ciraolo, F. Briolle, C. Chandre +6
It is shown that a relevant control of Hamiltonian chaos is possible through suitable small perturbations whose form can be explicitly computed. In particular, it is possible to co…
Emission line galaxies at z = 6.5
Jaron Kurk, Andrea Cimatti, Sperello di Serego Alighieri +2
We are carrying out a search for Lyman alpha emitting galaxies at z = 6.5 employing slitless spectroscopy at the VLT. In our 43 square arcminute field we find three isolated single…
Control of chaos in Hamiltonian systems
G. Ciraolo, C. Chandre, R. Lima +2
We present a technique to control chaos in Hamiltonian systems which are close to integrable. By adding a small and simple control term to the perturbation, the system becomes more…
The GZK Feature in the Spectrum of UHECRs: What is it Telling Us?
Daniel De Marco, Pasquale Blasi, Angela V. Olinto
We developed a numerical simulation of the propagation of UHECR in the Cosmic Microwave Background (CMB) and we used it to determine the significance of the GZK feature in the spec…
Shock Acceleration and gamma radiation in Clusters of Galaxies
Pasquale Blasi, Stefano Gabici
The nonthermal radiation observed from a handfull of clusters of Galaxies is the proof that particle acceleration occurs in the intracluster medium. It is often believed that shock…
Theoretical Aspects of Ultra-High Energy Cosmic Rays
Pasquale Blasi
We review the basic ideas on the origin of cosmic rays with energy in excess of eV, in the light of the most recent observational findings. The limited statistics of…