A5074842806- Solar and Space Plasma Dynamics
- Stellar, planetary, and galactic studies
- Astro and Planetary Science
- Solar Radiation and Photovoltaics
- Geophysics and Gravity Measurements
- Statistical and numerical algorithms
- Astronomy and Astrophysical Research
- Astrophysics and Star Formation Studies
University of Colorado Boulder
2023-2024
Southwest Research Institute
2023
Institut National Polytechnique de Toulouse
2023
Abstract In the corona, plasma is accelerated to hundreds of kilometers per second and heated temperatures times hotter than Sun's surface before it escapes form solar wind. Decades space-based experiments have shown that energization process does not stop after escapes. Instead, wind continues accelerate, cools far more slowly a freely expanding adiabatic gas. Recent work suggests fast requires additional momentum beyond what can be provided by observed thermal pressure gradients alone,...
In the corona, plasma is accelerated to hundreds of kilometers per second, and heated temperatures times hotter than Sun's surface, before it escapes form solar wind. Decades space-based experiments have shown that energization process does not stop after escapes. Instead, wind continues accelerate cools far more slowly a freely-expanding adiabatic gas. Recent work suggests fast requires additional momentum beyond what can be provided by observed thermal pressure gradients alone whereas...
The FIP (First Ionization Potential) bias is one of the most relevant diagnostics for solar plasma composition. Previous studies have demonstrated that a time-dependant quantity. In this study, we attempt to answer following question: how does evolves over time, and what are its drivers parameters? We investigate active region (AR) observations recorded by Extreme Ultra-Violet (EUV) spectrometer SPICE (Spectral Imaging Coronal Environment) instrument on-board Solar Orbiter. These include set...
The First Ionization Potential (FIP) bias is a critical diagnostic for solar plasma composition, offering insights into the mechanisms shaping atmosphere and wind. Previous studies have highlighted time-dependent nature of FIP bias. In this study, we aim to understand how evolves over time identify its key drivers parameters. Using data from SPICE (Spectral Imaging Coronal Environment) instrument onboard Solar Orbiter, analyze Extreme Ultra-Violet (EUV) observations active regions (ARs)...
Aims. We present an analysis of the first connection mosaic made by SPICE instrument on board ESA/NASA Solar Orbiter mission March 2, 2022. The data will be used to map coronal composition that compared with in-situ measurements taken SWA/HIS establish origin solar wind plasma observed at Orbiter. spectral lines were chosen have varying sensitivity ionization potential (FIP) effect, and therefore radiances vary significantly depending whether elemental is or photospheric. investigate link...
With the growing number of solar probes across inner heliosphere, our community, now more than ever, is well placed to continuously track formation and supersonic expansion wind from Sun. To capture conditions release connected heliospheric structures, it fundamental link near-synchronous measurements its state in corona associated stream’s interplanetary propagation. This goal can be achieved through well-aligned spacecraft conjunctions, measuring local plasma conditions, with...
We present an analysis of the first connection mosaic made by SPICE instrument on board ESA / NASA Solar Orbiter mission March 2nd, 2022. The data will be used to map coronal composition that compared with in-situ measurements taken SWA/HIS establish origin solar wind plasma observed at Orbiter. spectral lines were chosen have varying sensitivity First Ionization Potential (FIP) effect, and therefore radiances vary significantly depending whether elemental is or photospheric. investigate...
Stars with masses $\gtrsim 4 \times 10^{27}M_{\rm{moose}} \approx 1.1 M_\odot$ have core convection zones during their time on the main sequence. In these moosive stars, introduces many uncertainties in stellar modeling. this Letter, we build upon Boussinesq approximation to present first-ever simulations of Moosinesq convection, which captures complex geometric structure stars. These flows are bounded a manner informed by majestic terrestrial Alces alces (moose) and could important...