52 citations · 119 across the 8 of their papers we have counts for
9 papers
Solar spicule population properties inferred from IRIS Mg II k off-limb spectra using likelihood-free Bayesian inference
Jiri Stepan, Stanislav Gunar, Akiko Tei +1
Solar spicules are ubiquitous and strongly overlap in off-limb observations, which complicates the interpretation of individual events. We aim to infer population-level properties…
Pre-flare and active region plasma flows and structure seen by the short wavelength camera on SOLAR-C/EUVST
James McKevitt, Sarah Matthews, David H. Brooks +20
The mechanisms triggering solar flares and driving coronal heating occur across wide temperature ranges on small spatial scales and short timescales, making them difficult to obser…
Comparison of Coronal Hole and Quiet Sun Chromosphere Using IRIS Mg II h & k Observations of Polar Off-limb Regions
Akiko Tei, Stanislav Gunar, Takenori J. Okamoto
Solar quiet regions are divided into coronal hole regions (CH) and quiet-Sun regions (QS). The global magnetic field in CH is considered open to interplanetary space, while that in…
Empirical atmosphere model in a mini flare during magnetic reconnection
Brigitte Schmieder, Reetika Joshi, Ramesh Chandra +6
A spatio-temporal analysis of IRIS spectra of MgII, CII, and SiIV ions allows us to study the dynamics and the stratification of the flare atmosphere along the line of sight during…
Multi thermal atmosphere of a mini solar flare during magnetic reconnection observed with IRIS
Reetika Joshi, Brigitte Schmieder, Akiko Tei +4
The Interface Region Imaging Spectrograph(IRIS) with its high spatial and temporal resolution brings exceptional plasma diagnostics of solar chromospheric and coronal activity duri…
IRIS Mg II Observations and Non-LTE Modeling of Off-limb Spicules in a Solar Polar Coronal Hole
Akiko Tei, Stanislav Gunar, Petr Heinzel +4
We investigated the off-limb spicules observed in the Mg II h and k lines by IRIS in a solar polar coronal hole. We analyzed the large dataset of obtained spectra to extract quanti…
Blue wing enhancement of the chromospheric Mg II h and k lines in a solar flare
Akiko Tei, Takahito Sakaue, Takenori J. Okamoto +6
We performed coordinated observations of AR 12205, which produced a C-class flare on 2014 November 11, with the Interface Region Imaging Spectrograph (IRIS) and the Domeless Solar…
Observational Study on the Fine Structure and Dynamics of a Solar Jet. II. Energy Release Process Revealed by Spectral Analysis
Takahito Sakaue, Akiko Tei, Ayumi Asai +3
We report a solar jet phenomenon associated with the C5.4 class flare on 2014 November 11. The data of jet was provided by Solar Dynamics Observatory (SDO), X-Ray Telescope (XRT) a…
Observational Study on the Fine Structure and Dynamics of a Solar Jet. I. Energy Build-Up Process around a Satellite Spot
Takahito Sakaue, Akiko Tei, Ayumi Asai +3
We report a solar jet phenomenon associated with successive flares on November 10th 2014. These explosive events were involved with the satellite spots' emergence around a delta-ty…