53 citations · 569 across the 34 of their papers we have counts for
36 papers
An Unusual Velocity Field in a Sunspot Penumbra
H. Balthasar, C. Denker, A. Diercke +6
The photospheric Evershed flow is normally oriented radially outward, yet sometimes opposite velocities are observed not only in the chromosphere but also in the photospheric layer…
On the Response of the Transition Region and the Corona to Rapid Excursions in the Chromosphere
Ravi Chaurasiya, Ankala Raja Bayanna, R. E. Louis +2
Spicules are the thin hair/grass-like structures that are prominently observed at the chromospheric solar limb. It is believed that fibrils and rapid blueshifted and redshifted exc…
Classification of circular polarization Stokes profiles in a sunspot using k-means clustering
Rohan Eugene Louis, Shibu K. Mathew, A. Raja Bayanna
The magnetic and velocity fields in sunspots are highly structured on small spatial scales which are encoded in the Stokes profiles. Our aim is to identify Stokes profiles in a sun…
Sustained heating of the chromosphere and transition region over a sunspot light bridge
Rohan E. Louis, Shibu K. Mathew, A. Raja Bayanna +2
Sunspot light bridges (LBs) exhibit a wide range of short-lived phenomena in the chromosphere and transition region. In contrast, we use here data from the Multi-Application Solar…
Heating of the solar chromosphere in a sunspot light bridge by electric currents
Rohan E. Louis, Avijeet Prasad, Christian Beck +2
Context: Resistive Ohmic dissipation has been suggested as a mechanism for heating the solar chromosphere, but few studies have established this association. Aim: We aim to determi…
Homologous flaring activity over a sunspot light bridge in an emerging active region
Rohan E. Louis, Julia K. Thalmann
Sunspot light bridges are known to exhibit a variety of dynamic and persistent phenomena such as surges, small-scale jets etc. in the chromosphere and transition region. While it h…