We present the results of numerical simulations of wave-induced magnetic reconnection in a model of the solar atmosphere. In the magnetic field geometry we study in this article, the waves, driven by a monochromatic piston and a driver taken from Hinode observations, induce periodic reconnection of the magnetic field, and this reconnection appears to help drive long-period chromospheric jets. B...

Infrared spectra have been obtained for laboratory residues of photoprocessed low-temperature ices which have been exposed to long-term solar ultraviolet radiation on the EURECA satellite. This is an analog to the ultraviolet processing of interstellar dust mantles in diffuse clouds after leaving molecular clouds. The 3.4 mm absorption features of these organic materials match those of the diff...

Abstract Coronal bright points (CBPs) are sets of small-scale coronal loops, connecting opposite magnetic polarities, primarily characterized by their enhanced extreme-ultraviolet (EUV) and X-ray emission. Being ubiquitous, they thought to play an important role in heating the solar corona. We aim at characterizing barely explored chromosphere underneath CBPs, focusing on related spicular activ...

Introduction: In order to understand the origin of the short-lived radionuclides (SLRs) in the early solar system, it is necessary to have a clear, astrophysically based picture of galactic chemical evolution and the resulting SLR abundances in the interstellar medium (ISM). A discussion of the origin of the SLRs in the early solar system, including a detailed model of galactic chemical evoluti...

A local turbulence model is developed to study energy cascades in the interstellar medium (ISM) based on self-consistent two-dimensional fluid simulations. The model describes a partially ionized magnetofluid interstellar medium (ISM) that couples a neutral hydrogen fluid with a plasma primarily through charge exchange interactions. Charge exchange interactions are ubiquitous in warm ISM plasma...

This paper presents a method for automatic detection of spicules in mammograms. The method consists of two steps, enhancement and feature selection. First, spicule shadows are enhanced by a newly developed operation. An opening operation is applied to remove noise and a direction map is made for feature selection. Second, a concentration expression is given with gray levels and two features are...