Surname 
Name 
Affiliation 
Title of talk 
Abstract 
Belinski 
Volodia 
ICRA and Dip. Di Fisica, Universita di Roma "La Sapienza" 
Boundary conditions in the Unruh problem 

Bianco 
Carlo 
ICRA and Dip. Di Fisica, Universita di Roma "La Sapienza" 
The GRB 991216 in the EMBH model 

Bini 
Donato 
ICRA and Istituto per le Applicazioni del Calcolo "M. Picone", CNR 
Gravitoelectromagnetism: applications to the TaubNUT spacetime 
The role of the gravitomagnetic monopole moment of the TaubNUT solution is studied for spinning test particle moving along circular orbits. Comparison with the Schwarzschild case is also considered. 
Chardonnet 
Pascal 
ICRA and University of Savoie 
Ultra High Energy Cosmic Rays : a new frontier? 

Cherubini 
Cristian 
Universita di Salerno, Italy and ICG, University of Portsmouth, UK 
Perturbations and gravitomagnetism in the KerrTaubNUT spacetime 
The master equation describing massless fields of different spin in the KerrTaubNUT spacetime representing a source with a mass plus gravitomagnetic monopole and dipole moments is studied. This equation can be separated into its radial and angular parts. The behaviour of the radial functions at infinity and near the horizon is studied in order to examine the influence of the NUT parameter on the phenomenon of superradiance. Moreover it is discussed the coupling between the spin of the perturbing field and the gravitomagnetic monopole moment. 
 
 
Istituto Nazionale Ottica Applicata, Firenze 
"Strong" chaos, nonequilibrium entropy & microcanonical thermodynamics of Self Gravitating Systems 

Clarelli 
Fabrizio 
ICRA and Dip. Metodi e Modelli Matematici, Universita di Roma "La Sapienza" 
Stability region of Neutron Stars and MassRadius relation 
We present detailed analysis of the mass radius relations in the neutron stars which outline some interesting features about the morphology of such astrophysical object. In particular we numerically integrate the Tolman Oppenheimer Volkoff equations in correspondence to different choices for the core equation of state and using the standard Harrison Wheeler scheme for modelling the external envelope; in this procedure the central density of the star is to be regarded as a free parameter of the theory. The results of our integration show a crucial morphology in the {\em masscentral density diagram} which consists of the appearence of an existence domain; this achievement allows to characterize the astrophysical nature of an observed stellar object simply by its mass, i.e. when its values lies outside such domain we can exclude that the object under study is a neutron star. Furthermore we candidate (in alternative to the {\em strange star proposal}) neutron stars cores as the astrophysical objects responsible for the mass radius profiles observed by Beppo Sax. 
Cruciani 
Gianluca 
ICRA and Universita di Perugia 
Geodesics of the FerrariIbanez metric: a computer algebra approach 
It is shown how to build a simple computer algebra procedure to draw the geodesic paths of a particle moving in a single gravitational plane wave spacetime, with various initial velocities, and subsequently penetrating a GW collision zone. The software used is Mathematica 4. 
Geralico 
Andrea 
ICRA and Dip. Di Fisica, Universita di Lecce 
Electrostatics on a ReissnerNordstrom black hole background 
The interaction of a ReissnerNordstr\"om black hole and a charged test particle is studied together with the lines of force of their electric fields. The electric properties of the black hole horizon are discussed in detail and used to explain the expulsion of the lines of force from the outer horizon as the hole becomes extreme. The particle backreaction is also considered studying the effect of general static perturbations of the hole following the approach of Zerilli. 
Guida 
Roberto 
ICRA and Dip. Di Fisica, Universita di Roma "La Sapienza" 


Imponente 
Giampaolo 
ICRA and Universita di Napoli 
Generic deSitter Solution with scalar field 

Lattanzi 
Massimiliano 
ICRA and Dip. Di Fisica, Universita di Roma "La Sapienza" 
Effect of neutrino asymmetry on the cosmic microwave background anisotropy spectrum 

Mercuri 
Simone 
ICRA and Dip. Di Fisica, Universita di Roma "La Sapienza" 
Revised quantum geometrodynamics via frame fixing 

Ruffini 
Remo 
ICRA and Dip. Di Fisica, Universita di Roma "La Sapienza" 
Theory of Dyadosphere 

Sigismondi 
Costantino 
ICRA and Istituto Armellini, Universita di Roma "La Sapienza" 
Astrometry and Relativity 
Since James Bradley's discovery of light aberration (1727) to Gravity ProbeB experiment (launch November 2003) there has been a strict interplay between observational astrometry and measurements of relativistic effects. An overview on light aberration, Mercury's perihelion precession with solar disk ellipticity debate, lunar geodetic precession, LenseThirring and PughSchiff precessions in Gravity ProbeB experiment are presented, in order to understand the final choice of the reference star for Gravity ProbeB satellite. 
Vitagliano 
Luca 
ICRA and Universita di Roma "La Sapienza" 
On the General Relativistic Dynamical Formation of the Dyadosphere 

Xue 
She Seng 
ICRA 
Theory of Dyadosphere 
