73 citations · 837 across the 27 of their papers we have counts for
27 papers
Intermittency spectra of current helicity in solar active regions
A. S. Kutsenko, V. I. Abramenko, K. M. Kuzanyan +2
We analyse the spatial distribution of current helicity in solar active regions. A comparison of current helicity maps derived from three different instruments (Helioseismic and Ma…
Contribution to the Solar Mean Magnetic Field from Different Solar Regions
A. S. Kutsenko, V. I. Abramenko, V. B. Yurchyshyn
Seven-year long seeing-free observations of solar magnetic fields with the Helioseismic and Magnetic Imager (HMI) on board the Solar Dynamics Observatory (SDO) were used to study t…
Dynamics in Sunspot Umbra as Seen in New Solar Telescope and Interface Region Imaging Spectrograph Data
Vasyl Yurchyshyn, Valentyna Abramenko, Ali Kilcik
We analyse sunspot oscillations using Interface Region Imaging Spectrograph (IRIS) slit-jaw and spectral data and narrow-band chromospheric images from the New Solar Telescope (NST…
High Resolution Observations of Chromospheric Jets in Sunspot Umbra
V. Yurchyshyn, V. Abramenko, S. Kosovichev +1
Recent observations of sunspot's umbra suggested that it may be finely structured at a sub-arcsecond scale representing a mix of hot and cool plasma elements. In this study we repo…
Dynamics of Chromospheric Upflows and Underlying Magnetic Fields
Vasyl Yurchyshyn, Valentyna Abramenko, Phil Goode
We used \ha-0.1 nm and magnetic field (at 1.56) data obtained with the New Solar Telescope to study the origin of the disk counterparts to type II spicules, so-called rapid blue…
Detection of Small-Scale Granular Structures in the Quiet Sun with the New Solar Telescope
Valentyna Abramenko, Vasyl Yurchyshyn, Philip Goode +2
Results of a statistical analysis of solar granulation are presented. A data set of 36 images of a quiet Sun area on the solar disk center was used. The data were obtained with the…