The 3D magnetic field topology of solar filaments/prominences is strongly debated, because it is not directly measureable in the corona. Among various prominence models, several are consistent with many observations, but their related topologies are very different. We conduct observations to address this paradigm. We measure the photospheric vector

Aims.A model of a elliptically shaped coronal arcade with piecewise constant density is discussed to explore the effects of curvature on radially polarised fast modes. It is important to test whether the main results in the straight and cylindrical geometries can be extrapolated to these more complex equilibria. Methods: .An equilibrium model for a

The relation between the Evershed flow and moving magnetic features (MMFs) is studied using high-cadence, simultaneous spectropolarimetric measurements of a sunspot in visible (630.2 nm) and near-infrared (1565 nm) lines. Doppler velocities, magnetograms, and total linear polarization maps are calculated from the observed Stokes profiles. We follow

EURONEAR - The European Near Earth Asteroid Research is a project initiated recently by a small team presently based in France, Romania, and South Africa. It envisions to build a coordinated network which will follow-up and recover Potentially Hazardous Asteroids (PHAs) and Near Earth Asteroids (NEAs), using time available at 1m class telescopes in

In our published paper there is an error in the order of the rows in Tables 1 through 6. We stated in the paper that the components are sorted in the order of increasing wavelengths in the linear Zeeman splitting (LZS) regime. However, in the published tables the values for the σ+ and σ- components appear reversed. As a result, researchers trying

High-resolution spectra of the program stars were obtained during the period 2002 December-2004 June at the Harlan J. Smith 2.7-m telescope of the W.J. McDonald Observatory, using the 2dcoude echelle spectrometer with a 2048x2048 Tektronix CCD as detector. (2 data files).