Publications (17)
Plasma diagnostic of a solar prominence from hydrogen and helium resonance lines
N. Labrosse, J. -C. Vial, P. Gouttebroze
We present the first comparison of profiles of H et He resonance lines observed by SUMER with theoretical profiles computed with our non-LTE radiative transfer code. We use the H I…
Halpha Doppler shifts in a tornado in the solar corona
B. Schmieder, P. Mein, N. Mein +3
High resolution movies in 193 A from the Atmospheric Imaging Assembly (AIA) on the Solar Dynamic Observatory SDO show apparent rotation in the leg of a prominence observed during a…
Visibility of Prominences using the HeI D3 Line Filter on PROBA-3/ASPIICS Coronagraph
S. JejÄiÄ, P. Heinzel, N. Labrosse +4
We determine an optimal width and shape of the narrow-band filter centered around the He\,{\sc i} D line for prominence and coronal mass ejection (CME) observations with the…
Comparing UV/EUV line parameters and magnetic field in a quiescent prominence with tornadoes
P. J. Levens, N. Labrosse, B. Schmieder +2
Context. Understanding the close relationship between the plasma and the magnetic field is important to describe and explain the observed complex dynamics of solar prominences. Aim…
Observations of a solar flare and filament eruption in Lyman alpha and X-rays
F. Rubio da Costa, L. Fletcher, N. Labrosse +1
We aim to characterise the appearance and behaviour of a flare and filament ejection which occurred on 8th September 1999 and was observed by TRACE in L-alpha as well as by the Yoh…
The Solar Orbiter Science Activity Plan: translating solar and heliospheric physics questions into action
I. Zouganelis, A. De Groof, A. P. Walsh +182
Solar Orbiter is the first space mission observing the solar plasma both in situ and remotely, from a close distance, in and out of the ecliptic. The ultimate goal is to understand…
Radiative transfer in cylindrical threads with incident radiation VII. Multi-thread models
N. Labrosse, A. S. Rodger
We solved the radiative transfer and statistical equilibrium equations in a two-dimensional cross-section of a cylindrical structure oriented horizontally and lying above the solar…
Reconstruction of a helical prominence in 3D from IRIS spectra and images
B. Schmieder, M. Zapiór A. López Ariste, P. Levens +2
Movies of prominences obtained by space instruments e.g. the Solar Optical Telescope (SOT) aboard the {\it Hinode} satellite and the Interface Region Imaging Spectrograph (IRIS) wi…
Solar science with the Atacama Large Millimeter/submillimeter Array - A new view of our Sun
S. Wedemeyer, T. Bastian, R. Brajsa +35
The Atacama Large Millimeter/submillimeter Array (ALMA) is a new powerful tool for observing the Sun at high spatial, temporal, and spectral resolution. These capabilities can addr…
ALMA Observations of the Sun in Cycle 4 and Beyond
S. Wedemeyer, B. Fleck, M. Battaglia +34
This document was created by the Solar Simulations for the Atacama Large Millimeter Observatory Network (SSALMON) in preparation of the first regular observations of the Sun with t…
Physics of Solar Prominences: I - Spectral Diagnostics and Non-LTE Modelling
N. Labrosse, P. Heinzel, J. -C. Vial +5
This review paper outlines background information and covers recent advances made via the analysis of spectra and images of prominence plasma and the increased sophistication of no…
SSALMON - The Solar Simulations for the Atacama Large Millimeter Observatory Network
S. Wedemeyer, T. Bastian, R. Brajsa +27
The Solar Simulations for the Atacama Large Millimeter Observatory Network (SSALMON) was initiated in 2014 in connection with two ALMA development studies. The Atacama Large Millim…
Magnetic field in atypical prominence structures: Bubble, tornado and eruption
P. J. Levens, B. Schmieder, A. López Ariste +3
Spectropolarimetric observations of prominences have been obtained with the THEMIS telescope during four years of coordinated campaigns. Our aim is now to understand the conditions…
The development of lower-atmosphere turbulence early in a solar flare
N. L. S. Jeffrey, L. Fletcher, N. Labrosse +1
We present the first observational study of the onset and evolution of solar flare turbulence in the lower solar atmosphere on an unprecedented time scale of 1.7 s using the Interf…
Prominence Plasma Parameters Maps Inferred From Lyman and Lyman Observations and Non-LTE Modelling
Y. Zhang, N. Labrosse, T. A. Kucera +1
The first dedicated observation of an off-limb prominence by the Spectral Imaging of the Coronal Environment (SPICE) instrument took place on April 15, 2023. We aim to create param…
Exploration of long-period oscillations in an H prominence
M. Zapiór, B. Schmieder, P. Mein +3
Context. In previous work, we studied a prominence which appeared like a tornado in a movie made from 193 Ã filtergrams obtained with the Atmospheric Imaging Assembly (AIA) imager…
Structure of prominence legs: Plasma and magnetic field
P. J. Levens, B. Schmieder, N. Labrosse +1
We investigate the properties of a `solar tornado' observed on 15 July 2014, and aim to link the behaviour of the plasma to the internal magnetic field structure of the associated…