Il Nuovo Cimento C 

About: Il Nuovo Cimento C is an academic journal. The journal publishes majorly in the area(s): Cosmic ray & Neutrino. It has an ISSN identifier of 0390-5551. Over the lifetime, 1253 publications have been published receiving 7828 citations.

Resonant amplification of ν oscillations in matter and solar-neutrino spectroscopy

Abstract: For small mixing angles θ the amplification of ν oscillations in matter has the resonance form (resonance in neutrino energy or matter density). In the Sun resonance effect results in nontrivial changing (suppression) of ν-flux for a wide range of neutrino parameters Δm2=(3·10−4÷10−8) (eV)2, sin22θ>10−4.

On cosmic-ray cut-off terminology

Abstract: The study of cosmic-ray access to locations within the geomagnetic field has evolved over the past fifty years. Cosmic-ray cut-off terminology, originally developed to describe particle access and cut-off rigidities, has not evolved with the scientific advances in the field, and misunderstandings and misapplications of historical work have occurred. This paper is an attempt to remedy this situation by clarifying the areas in which changes have occurred and by providing a cross reference between the historical terms and those terms now in use for innovative cosmic-ray studies which are underway in several laboratories.

Atmospheric greenhouse effect in the context of global climate change

Abstract: Great interest in the problem of the atmospheric greenhouse effect (not only in scientific publications, but also in mass media), on the one hand, and the undoubtfully overemphasised contribution of the greenhouse effect to the global climate change, on the other hand, motivate a necessity to analyse the role which the greenhouse effect plays as a factor of climate change. Significant progress in the analysis of existing observational data as well as succesful development of numerical climate modelling which have been achieved during the recent few years create a basis for a new survey of the atmospheric greenhouse effect in the context of global climate change. Such a survey is the principal purpose of this paper. After discussing a notion of the greenhouse effect, the detailed analysis of the present-day and paleoclimatic observational data has been conducted with subsequent consideration of numerical modelling results. A special attention has been paid to assessments of the greenhouse warmingvs. aerosol cooling. Then possibilities of the early detection of a greenhouse climate signal have been analysed and a few comments on the global climate observing system have been made with the general conclusion that more observations and further numerical modelling efforts are necessary to more reliably assess the contributions of various mechanisms to the observed global climate changes. It is only in the context of a coupled totality of significant climate forming factors and processes that the contribution of the greenhouse effect may be estimated.

A technical overview of TSS-1: The first Tethered-Satellite system mission

Abstract: The Tethered-Satellite System (TSS) was developed to provide the capability of deploying satellites on long, gravity-gradient-stabilized tethers from the Space Shuttle. Although TSS-1 achieved only limited results because deployment was terminated at a distance of only 268 m, it did conclusively show that the basic concept of long gravity-gradient-stabilized tethers is sound, and it provided a unique set of data that will contribute significantly to future missions. In this context, it is important that the configuration, instrumentation, and results of the TSS-1 mission be documented. Here, we provide a brief overview of the TSS, the organization of its instrumentation, and its operations during TSS-1. Detailed descriptions of the various investigations and their specific instrumentation and measurement capabilities are given in the papers that follow.

High-speed solar-wind streams and galactic cosmic-ray modulation

Abstract: Two classes of fast solar-wind streams are identified.Quiet streams, coming from near equatorial holes: stream interface in the initial phase followed by low proton density, quiet interplanetary magnetic field with constant polarity and proton temperature following the wind speed time profile.Perturbed streams, coming from active regions producing type-IV solar flares, for which the previous requirements are not satisfied. Superposed epoch analyses applied on solar-wind speed and neutron monitor intensity show that during the high-speed streams presumably coming from coronal holes the cosmic-ray intensity is depressed; the time behaviour of this depression follows the time profile of the wind speed: for neutron monitors at high latitude ΔI/I≈—K·ΔV, whereK=5·10−5 km−1 s. The perturbed streams are accompanied by Forbush decreases whose amplitude and time behaviour are not directly related to the speed increase.