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From cutting-edge research to media appearances, the newest developments in WaLSA Team’s works are presented on this page. See Publications for our latest research articles, and Outreach for media linked to our public engagements.

Featured

High-resolution wave dynamics in the lower solar atmosphere

A Special Issue of the Philosophical Transactions of the Royal Society A published by the WaLSA Team, comprising a great set of 15 cutting-edge research articles from 55 unique authors spanning 34 research institutes.

An introduction to the Special Issue
The Special Issue
Collection of articles on ADS

Acoustic-gravity wave propagation characteristics in 3D radiation hydrodynamic simulations of the solar atmosphere

Bernhard Fleck, Mats Carlsson, Elena Khomenko, Matthias Rempel, Oskar Steiner, Vigeesh Gangadharan

Published Article
Pre-print on arXiv

On the effect of oscillatory phenomena on Stokes inversion results

Peter H. Keys, Oskar Steiner, Vigeesh Gangadharan

Published Article
Pre-print on arXiv

Influence of ambipolar and Hall effects on vorticity in 3D simulations of magneto-convection

E. Khomenko, M. Collados, N. Vitas, P. A. Gonzalez-Morales

Published Article
Pre-print on arXiv

Characterisation of shock wave signatures at millimetre wavelengths from Bifrost simulations

Henrik Eklund, Sven Wedemeyer, Ben Snow, David B. Jess, Shahin Jafarzadeh , Samuel D.T. Grant, Mats Carlsson, Mikołaj Szydlarski

Published Article
Pre-print on arXiv

A New Method for Detecting Solar Atmospheric Gravity Waves

Daniele Calchetti, Stuart M. Jefferies, Bernhard Fleck, Francesco Berrilli, and Dmitriy V. Shcherbik

Published Article
Pre-print on arXiv

On the influence of magnetic topology on the propagation of internal gravity waves in the solar atmosphere

G. Vigeesh, M. Roth, O. Steiner and B. Fleck

Published Article
Pre-print on arXiv

An overall view of temperature oscillations in the solar chromosphere with ALMA

S. Jafarzadeh, S. Wedemeyer, B. Fleck, M. Stangalini, D. B. Jess, R. J. Morton, M. Szydlarski1, V. M. J. Henriques, X. Zhu, T. Wiegelmann, J. C. Guevara Gómez, S. D. T. Grant, B. Chen, K. Reardon, and S. M. White

Published Article
Pre-print on arXiv

High-frequency oscillations in small chromospheric bright features observed with ALMA

Juan C. Guevara Gómez, Shahin Jafarzadeh, Sven Wedemeyer, Mikolaj Szydlarski, Marco Stangalini, Bernhard Fleck, Peter H. Keys

Published Article
Pre-print on arXiv

Magnetoacoustic Wave Energy Dissipation in the Atmosphere of Solar Pores

Caitlin A. Gilchrist-Millar, David B. Jess, Samuel D. T. Grant, Peter H. Keys, Christian Beck, Shahin Jafarzadeh, Julia M. Riedl, Tom Van Doorsselaere, Basilio Ruiz Cobo

Published Article
Pre-print on arXiv

The dynamics of 3-minute wavefronts and their relation to sunspot magnetic fields

Robert Sych, David B. Jess, David B., Jiangtao Su

Published Article
Pre-print on arXiv

Proper Orthogonal and Dynamic Mode Decomposition of Sunspot Data

A. B. Albidah, W. Brevis, V. Fedun, I. Ballai, D. B. Jess, M. Stangalini, J. Higham, G. Verth

Published Article
Pre-print on arXiv

Spectropolarimetric Fluctuations in a Sunspot Chromosphere

M. Stangalini, D. Baker, G. Valori, D.B. Jess, S. Jafarzadeh, M. Murabito, A.S.H. To, D.H. Brooks, I. Ermolli, F. Giorgi, C.D. MacBride

Published Article
Pre-print on arXiv

Accurately constraining velocity information from spectral imaging observations using machine learning techniques

Conor D. MacBride, David B. Jess, Samuel D. T. Grant, Elena Khomenko, Peter H. Keys, and Marco Stangalini

Published Article
Pre-print on arXiv

Transverse motions in sunspot super-penumbral fibrils

R. J. Morton, K. Mooroogen, and V. M. J. Henriques

Published Article
Pre-print on arXiv

Oscillations observed in umbra, plage, quiet-Sun and the polarity inversion line of active region 11158 using Helioseismic Magnetic Imager/Solar Dynamics Observatory data

A. A. Norton, R. B. Stutz and B. T. Welsch

Published article
Featured
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First observational evidence of resonance cavity in a sunspot

The WaLSA Team has succeeded to the ground-breaking discovery of why the Sun’s magnetic waves strengthen and grow as they emerge from its surface. Such waves can help to solve the mystery of how the corona of the Sun maintains its multi-million degree temperatures. The research entitled "A chromospheric resonance cavity in a sunspot mapped with seismology" has been published in Nature Astronomy.

Highlights

Top stories and achievements

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ISSI International Team

The WaLSA Team has been selected as an International Space Science Institute (ISSI) Team, providing a distinguished grant and facilities to hold a series of two to three one-week team meetings over a period of two years at ISSI in Bern, Switzerland.

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The Royal Society's Theo Murphy Award

The Hooke Committee of The Royal Society awarded the WaLSA Team a prestigious grant to host a Theo Murphy international meeting in February 2020 at Chicheley Hall (home of the Kavli Royal Society International Centre). The meeting was also selected for publication in a dedicated issue of the Philosophical Transactions of the Royal Society A.

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Rosseland International Team

The WaLSA team has been awarded a generous grant from the Research Council of Norway through its Centres of Excellence scheme, project number 262622 (the Rosseland Centre for Solar Physics), to organise two 1-week meetings in Oslo, Norway, during 2019. The grant supports the team for local expenses as well as the meeting facilities.

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