We study a neutrino gas in equilibrium both at T = 0 and at finite temperature. The neutrinos are assumed to be massive Dirac particles with two generations...
Neutron Emission from the Solar Flare of September 07, 2005, Detected by the Solar Neutron Telescope at Sierra Negra, Mexico
The X17.0 solar flare of September 07, 2005 released high-energy neutrons, that were detected by the Solar Neutron Telescope (SNT) at Sierra Negra, Mexico. In...
Neutron-capture element abundances in the planetary nebula NGC 5315 from deep high-resolution optical and near-IR spectrophotometry
We have done a spectroscopical analysis of the type I planetary nebula (PN) NGC 5315, through high-resolution (R ˜ 40000) optical spectroscopy with UVES at the...
New Analysis Of The Baptistina Asteroid Family: Implications For Its Link With The K/t Impactor
The Baptistina Asteroid Family (BAF) is the result of the breakup of an asteroid roughly 100 million years ago. This family is the source of meteoroids and near...
The major objective of EURONEAR is high precision astrometry of Near Earth NEAs Asteroids (NEAs) and Potentially Hazarduous Asteroids (PHAs) observed in a...
New BeppoSAX Wide Field Camera results on superbursts
Analysis of archival data from the BeppoSAX Wide Field Cameras has yielded further detections of superbursts. Remarkably, several are from a persistent low-mass...