44 citations · 426 across the 28 of their papers we have counts for
28 papers
Height Variations of Magnetoacoustic Cutoff Frequency in the Solar Atmosphere
Pradeep Kayshap, Gayathri Hegde, Z. E. Musielak +2
The determination of the cutoff frequency in real solar observations under different local physical conditions is an important and insufficiently explored aspect of waves in solar…
Variations in Dominant Wave Period in the Solar Atmosphere
Pradeep Kayshap, K. Murawski, Z. E. Musielak +1
Waves are an integral part of the solar atmosphere, and their characteristics (e.g., dominant period, range of periods, power, and phase angle) change on a diverse spatio-temporal…
Alfvén Pulse Driven Spicule-like Jets in the Presence of Thermal Conduction and Ion-Neutral Collision in Two-Fluid Regime
A. K. Srivastava, Anshika Singh, Balveer Singh +6
We present the formation of quasi-periodic cool spicule-like jets in the solar atmosphere using 2.5-D numerical simulation in two-fluid regime (ions+neutrals) under the presence of…
Numerical Simulations of Two-Fluid Magnetoacoustic Waves in the Solar Atmosphere
J. Kraśkiewicz, K. Murawski, Z. E. Musielak
We study vertical variations of wave-periods of magnetoacoustic two-fluid waves in the partially ionized lower solar atmosphere, consisting of ion (proton) + electron and neutral (…
Generation of solar chromosphere heating and coronal outflows by two-fluid waves
M. Pelekhata, K. Murawski, S. Poedts
Context. It is known that Alfvén and magnetoacoustic waves both contribute to the heating of the solar chromosphere and drive plasma outflows. In both cases, the thermalization of…
Two-fluid numerical model of chromospheric heating and plasma outflows in a quiet-Sun
K. Murawski, Z. E. Musielak, S. Poedts +2
\textbf{Purpose:} This paper addresses long-standing solar physics problems, namely, the heating of the solar chromosphere and the origin of the solar wind. Our aim is to reveal th…
Numerical simulations of a two-fluid jet at a magnetic null point in a solar arcade
J. J. González-Avilés, K. Murawski, T. V. Zaqarashvili
We study the formation and evolution of jets in the solar atmosphere using numerical simulations of partially ionized plasma. The two-fluid magnetohydrodynamic equations with ion+e…
Chromospheric heating and generation of plasma outflows by impulsively generated two-fluid magnetoacoustic waves
R. Niedziela, K. Murawski, S. Poedts
Context. The origin of the heating of the solar atmosphere is still an unsolved problem. As the photosphere and chromosphere radiate more energy than the solar corona, it is challe…
Solar chromosphere heating and generation of plasma outflows by impulsively generated two fluid Alfven waves
M. Pelekhata, K. Murawski, S. Poedts
Context. We address the heating of the solar chromosphere and the related generation of plasma inflows and outflows. Aims. We attempt to detect variations in ion temperature and ve…
3D numerical simulations of propagating two-fluid, torsional Alfvén waves and heating of a partially-ionized solar chromosphere
B. Kuźma, K. Murawski, S. Poedts
We present a new insight into the propagation, attenuation and dissipation of two-fluid, torsional Alfvén waves in the context of heating of the lower solar atmosphere. By means of…
Spatial variation of periods of ion and neutral waves in a solar magnetic arcade
Błażej Kuźma, Kris Murawski, Zdzisław E. Musielak +2
We present a new insight into the propagation of ion magnetoacoustic and neutral acoustic waves in a magnetic arcade in the lower solar atmosphere. By means of numerical simulation…
Numerical simulations of macrospicule jets under energy imbalance conditions in the solar atmosphere
J. J. González-Avilés, K. Murawski, A. K. Srivastava +2
Using numerical simulations, we study the effects of thermal conduction and radiative cooling on the formation and evolution of solar jets with some macrospicules features. We init…
Thermal conduction effects on formation of chromospheric solar tadpole-like jets
Anamaría Navarro, F. D. Lora-Clavijo K. Murawski, Stefaan Poedts
We measure the effects of non-isotropic thermal conduction on generation of solar chromospheric jets through numerical simulations carried out with the use of one fluid MHD code MA…
Two-fluid Modeling of Acoustic Wave Propagation in Gravitationally Stratified Isothermal Media
Fan Zhang, Stefaan Poedts, Andrea Lani +2
To study acoustic wave propagation and the corresponding energy deposition in partially ionized plasmas, we use a two-fluid computational model that treats neutrals and charged par…
Velocity Response of the Observed Explosive Events in the Lower Solar Atmosphere: I. Formation of the Flowing Cool Loop System
A. K. Srivastava, Yamini K. Rao, P. Konkol +6
We observe plasma flows in cool loops using the Slit-Jaw Imager (SJI) onboard the Interface Region Imaging Spectrometer (IRIS). Huang et al. (2015) observed unusually broadened Si…
Vertical Propagation of Acoustic Waves in the Solar Inter-Network as Observed by IRIS
P. Kayshap, K. Murawski, A. K. Srivastava +2
We investigate the Interface Region Imaging Spectrograph (IRIS) observations of the quiet-Sun (QS) to understand the propagation of acoustic waves in transition region (TR) from ph…
Rotating Network Jets in the quiet Sun as Observed by IRIS
P. Kayshap, K. Murawski, A. K. Srivastava +1
Aims. We perform a detailed observational analysis of network jets to understand their kinematics, rotational motion and underlying triggering mechanism(s). We have analyzed the qu…
Two-fluid numerical simulations of solar spicules
Błażej Kuźma, Kris Murawski, Pradeep Kayshap +3
We aim to study the formation and evolution of solar spicules by means of numerical simulations of the solar atmosphere. With the use of newly developed JOANNA code, we numerically…
2D MHD and 1D HD models of a solar flare -- a comprehensive comparison of the results
R. Falewicz, P. Rudawy, K. Murawski +1
Without any doubt solar flaring loops possess a multi-thread internal structure that is poorly resolved and there are no means to observe heating episodes and thermodynamic evoluti…
Spectroscopic Observations and Modelling of Impulsive Alfvén Waves Along a Polar Coronal Jet
P. Jelínek, A. K. Srivastava, K. Murawski +2
Using the Hinode/EIS 2 spectroscopic observations, we study the intensity, velocity, and FWHM variations of the strongest Fe XII 195.12 Å line along the jet to find the signatur…
On Thermal-Pulse-Driven Plasma Flows in Coronal Funnels as Observed by Hinode/EUV Imaging Spectrometer (EIS)
A. K. Srivastava, P. Konkol, K. Murawski +2
Using one-arcsecond-slit scan observations from the Hinode/EUV Imaging Spectrometer (EIS) on 05 February 2007, we find the plasma outflows in the open and expanding coronal funnels…
Origin of Macrospicule and Jet in Polar Corona by A Small-scale Kinked Flux-Tube
P. Kayshap, A. K. Srivastava, K. Murawski +1
We report an observation of a small scale flux-tube that undergoes kinking and triggers the macrospicule and a jet on November 11, 2010 in the north polar corona. The small-scale f…
Study of the Kinematics and Plasma Properties of A Solar Surge Triggered due to Chromospheric Activity in AR11271
P. Kayshap, A. K. Srivastava, K. Murawski
We observe a solar surge in NOAA AR11271 using SDO AIA 304 image data on 25 August, 2011. The surge rises vertically from its origin upto a height of 65 Mm with a terminal velocity…
Multiwavelength Observations of Supersonic Plasma Blob Triggered by Reconnection Generated Velocity Pulse in AR10808
A. K. Srivastava, R. Erdelyi, K. Murawski +1
Using multi-wavelength observations of Solar and Heliospheric Observatory (SoHO)/Michelson Doppler Imager (MDI), Transition Region and Coronal Explorer (TRACE) 171 Å, and H from…