80 citations · 152 across the 11 of their papers we have counts for
11 papers · 1 filter
Refined reduction and standardisation of 53 years of UBV photometry at Hvar
Hrvoje Božić, Petr Harmanec, Miroslav Brož +17
Emission-line stars classified as Be exhibit light and colour variability on various timescales, ranging from days to decades. Their evolution must be constrained by long-term obse…
The influence of different coronal hole geometries on simulations of coronal wave -- coronal hole interaction
I. Piantschitsch, J. Terradas, E. Soubrie +4
The geometry of a coronal hole (CH) affects the density profile of the reflected part of an incoming global coronal wave (CW). In this study, we perform for the first time magnetoh…
The role of initial density profiles in simulations of coronal wave - coronal hole interaction
I. Piantschitsch, J. Terradas, E. Soubrie +4
Interactions between global coronal waves (CWs) and coronal holes (CHs) reveal many interesting features of reflected waves and coronal hole boundaries (CHB) but have fairly been s…
Construction of coronal hole and active region magnetohydrostatic solutions in two dimensions: Force and energy balance
J. Terradas, R. Soler, R. Oliver +7
Coronal holes and active regions are typical magnetic structures found in the solar atmosphere. We propose several magnetohydrostatic equilibrium solutions that are representative…
Geometrical properties of the interaction between oblique incoming coronal waves and coronal holes
I. Piantschitsch, J. Terradas
Observations of coronal waves (CWs) interacting with coronal holes (CHs) show the formation of typical wave-like features, such as reflected, refracted and transmitted waves (colle…
A new method for estimating global coronal wave properties from their interaction with solar coronal holes
I. Piantschitsch, J. Terradas, M. Temmer
Global coronal waves (CWs) and their interaction with coronal holes (CHs) result, among other effects, in the formation of reflected and transmitted waves. Observations of such eve…
Numerical Simulation of Coronal Waves Interacting with Coronal Holes: III. Dependence on Initial Amplitude of the Incoming Wave
Isabell Piantschitsch, Bojan Vrsnak, Arnold Hanslmeier +4
We performed 2.5D magnetohydrodynamic (MHD) simulations showing the propagation of fast-mode MHD waves of different initial amplitudes and their interaction with a coronal hole (CH…
Numerical Simulation of Coronal Waves Interacting with Coronal Holes: II. Dependence on Alfvén Speed Inside the Coronal Hole
Isabell Piantschitsch, Bojan Vrsnak, Arnold Hanslmeier +4
We used our newly developed magnetohydrodynamic (MHD) code to perform 2.5D simulations of a fast-mode MHD wave interacting with coronal holes (CH) of varying Alfvén speed which res…
Numerical Simulation of Coronal Waves interacting with Coronal Holes: I. Basic Features
Isabell Piantschitsch, Bojan Vrsnak, Arnold Hanslmeier +5
We developed a new numerical code that is able to perform 2.5D simulations of a magnetohydrodynamic (MHD) wave propagation in the corona, and its interaction with a low density reg…
Drag-Based Ensemble Model (DBEM) for Coronal Mass Ejection Propagation
Mateja Dumbović, Jaša Čalogović, Bojan Vršnak +4
The drag-based model (DBM) for heliospheric propagation of coronal mass ejections (CMEs) is a widely used analytical model which can predict CME arrival time and speed at a given h…
Dynamics of small-scale convective motions
Birgit Lemmerer, Arnold Hanslmeier, Herbert Muthsam +1
Previous studies have discovered a population of small granules with diameters less than 800 km showing differing physical properties. High resolution simulations and observations…