5 papers
Nonthermal Activity and Particle Acceleration in Clusters of Galaxies
Vahe' Petrosian
Evidence for nonthermal activity in clusters of galaxies is well established from radio observations of synchrotron emission by relativistic electrons, and new windows (in EUV and…
Looptop and Footpoint Impulsive Hard X-Rays and Stochastic Electron Acceleration in Solar Flares
Vahé Petrosian
The discovery of hard X-rays from tops of flaring loops by the HXT of YOHKOH represents a significant progress in the understanding of solar flares. This report describes the prope…
New Statistical Methods for Analysis of Large Surveys: Distributions and Correlations
Vahe' Petrosian
The aim of this paper is to describe new statistical methods for determination of the correlations among and distributions of physical parameters from a multivariate data with gene…
Plasma Turbulence and Stochastic Acceleration in Solar Flares
Vahe Petrosian
Observational aspects of solar flares relevant to the acceleration process of electrons and protons are reviewed and it is shown that most of these observations can be explained by…
Nonparametric Methods for Doubly Truncated Data
Bradley Efron, Vahé Petrosian
Truncated data plays an important role in the statistical analysis of astronomical observations as well as in survival analysis. The motivating example for this paper concerns a se…