5k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR146 papers
- California Institute of TechnologyUS136 papers
- Goddard Space Flight CenterUS133 papers
- European Space Research and Technology CentreNL128 papers
- University of GenevaCH125 papers
- University of OsloNO124 papers
- National Institute for AstrophysicsIT122 papers
- Université Paris CitéFR122 papers
- University College LondonGB122 papers
- Jet Propulsion LaboratoryUS121 papers
- Université Paris-SaclayFR121 papers
- Astrophysique, Instrumentation et ModélisationFR120 papers
12 papers · 2 filters
Observations of the solar chromosphere with ALMA and comparison with theoretical models
R. Brajša, D. Sudar, I. Skokic +9
In this work we use solar observations with the ALMA radio telescope at the wavelength of 1.21 mm. The aim of the analysis is to improve understanding of the solar chromosphere, a…
Joint X-ray, EUV and UV Observations of a Small Microflare
Iain G. Hannah, Lucia Kleint, Säm Krucker +5
We present the first joint observation of a small microflare in X-rays with the Nuclear Spectroscopic Telescope ARray (NuSTAR), UV with the Interface Region Imaging Spectrograph (I…
Heating of the solar photosphere during a white-light flare
Jan Jurcak, Jana Kasparova, Michal Svanda +1
The \ion{Fe}{i} lines observed by the Hinode/SOT spectropolarimeter were always seen in absorption, apart from the extreme solar limb. Here we analyse a unique dataset capturing th…
High-Density Off-Limb Flare Loops Observed by SDO
S. Jejčič, L. Kleint, P. Heinzel
The density distribution of flare loops and the mechanisms of their emission in the continuum are still open questions. On September 10, 2017 a prominent loop system appeared durin…
Nonlinear force-free modeling of flare-related magnetic field changes at the photosphere and chromosphere
Lucia Kleint, Michael S. Wheatland, Alpha Mastrano +1
Rapid and stepwise changes of the magnetic field are often observed during flares but cannot be explained by models yet. Using a 45 min sequence of SDO/HMI 135 s fast-cadence vecto…
Magnetic Reconnection Null Points as the Origin of Semi-relativistic Electron Beams in a Solar Jet
Bin Chen, Sijie Yu, Marina Battaglia +7
Magnetic reconnection, the central engine that powers explosive phenomena throughout the Universe, is also perceived as one of the principal mechanisms for accelerating particles t…
Hard X-Ray Constraints on Small-Scale Coronal Heating Events
Andrew J. Marsh, David M. Smith, Lindsay Glesener +7
Much evidence suggests that the solar corona is heated impulsively, meaning that nanoflares may be ubiquitous in quiet and active regions (ARs). Hard X-ray (HXR) observations with…
Microwave and Hard X-Ray Observations of the 2017 September 10 Solar Limb Flare
Dale E. Gary, Bin Chen, Brian R. Dennis +8
We report the first science results from the newly completed Expanded Owens Valley Solar Array (EOVSA), which obtained excellent microwave imaging spectroscopy observations of SOL2…
Identifying typical Mg II flare spectra using machine learning
B. Panos, L. Kleint, C. Huwyler +4
IRIS performs solar observations over a large range of atmospheric heights, including the chromosphere where the majority of flare energy is dissipated. The strong Mg II h&k spectr…
Electron Power-Law Spectra in Solar and Space Plasmas
M. Oka, J. Birn, M. Battaglia +10
Particles are accelerated to very high, non-thermal energies in solar and space plasma environments. While energy spectra of accelerated electrons often exhibit a power law, it rem…
Understanding the HMI pseudocontinuum in white-light solar flares
M. Svanda, Jan Jurcak, Jana Kasparova +1
We analyse observations of the X9.3 solar flare (SOL2017-09-06T11:53) observed by SDO/HMI and Hinode/SOT. Our aim is to learn about the nature of the HMI pseudocontinuum Ic used as…
NuSTAR Detection of X-Ray Heating Events in the Quiet Sun
Matej Kuhar, Säm Krucker, Lindsay Glesener +5
The explanation of the coronal heating problem potentially lies in the existence of nanoflares, numerous small-scale heating events occuring across the whole solar disk. In this pa…