activity
20072026
most citedHeating of the magnetized solar chromosphere by partial ionization effects

202 citations · 1.1k across the 33 of their papers we have counts for

collaborators
Showing 2009Show all

7 papers · 1 filter

astro-ph.SR2009★ 108 cited

Modeling the Subsurface Structure of Sunspots

H. Moradi, C. Baldner, A. C. Birch +19

While sunspots are easily observed at the solar surface, determining their subsurface structure is not trivial. There are two main hypotheses for the subsurface structure of sunspo…

astro-ph.SR2009★ 12 cited

Simulations of magneto-acoustic pulsations in atmospheres of rapidly oscillating Ap stars

E. Khomenko, O. Kochukhov

Rapidly oscillating Ap stars exhibit an astrophysically interesting combination of strong, dipolar-like magnetic fields and high-overtone p-mode pulsations similar to the Sun. Rece…

astro-ph.SR2009★ 30 cited

Solar granulation from photosphere to low chromosphere observed in BaII 4554 A line

R. Kostik, E. Khomenko, N. Shchukina

The purpose of this paper is to characterize the statistical properties of solar granulation in the photosphere and low chromosphere up to 650 km. We use velocity and intensity var…

astro-ph.SR2009★ 41 cited

The energy of waves in the photosphere and lower chromosphere: 1. Velocity statistics

C. Beck, E. Khomenko, R. Rezaei +1

Acoustic waves are one of the primary suspects besides magnetic fields for the chromospheric heating process to temperatures above radiative equilibrium (RE). We derived the mechan…

astro-ph.SR2009★ 43 cited

Sunspot seismic halos generated by fast MHD wave refraction

E. Khomenko, M. Collados

We suggest an explanation for the high-frequency power excess surrounding active regions known as seismic halos. The idea is based on numerical simulations of magneto-acoustic wave…

astro-ph.SR2009★ 36 cited

Solar BaII 4554 A line as Doppler diagnostics: NLTE analysis in 3D hydrodynamical model

N. G. Shchukina, V. L. Olshevsky, E. Khomenko

The aim of this paper is to analyse the validity of the Dopplergram and lambda-meter techniques for the Doppler diagnostics of solar photospheric velocities using the BaII 4554 A l…