A selection of highlights culled from publications by HAO staff.
J. M. Forbes, X. Zhang, and A. Maute, (2020) use the NCAR thermosphere-ionosphere-
In this paper, Johnathan Gamaunt, Angelica Berner, Alfred de Wijn, Paul Scowen, and Robert Woodruff, aim to illustrate the flow down of requirements from the mission science objectives to design requirements while also giving an overview of the design developed from the concept study. This mission, funded by NASA, uses the Solar Transition Region UltraViolet Explorer (STRUVE) miniature satellite conceived to study the magnetic field in the solar atmosphere.
Andreea-Clara Pricopi, Alin Razvan Paraschiv, Diana Besliu-Ionescu, and Anca-Nicoleta Marginean state, in the Astrophysical Journal, that coronal mass ejections are the most important space weather phenomena, being associated with large geomagnetic storms, and having the potential to cause disturbances to telecommunications, satellite network disruptions, and power grid damage and failures.
Dong Lin, Wenbin Wang, Viacheslav Merkin, and Chaosong Huang show that solar eruptions of mass and magnetic field can trigger geospace storms. The most well-known storm phenomenon is the aurorae in the Earth's high latitude upper atmosphere. They emphasize how extremely high storm activity levels may have severe adverse effects on human society and infrastructure.
A Spectroscopic Survey of Infrared 1–4 μm Spectra in Regions of Prominent Solar Coronal Emission Lines of Fe XIII, Si X, and Si IX
Authors Aatiya Ali, Alin Razvan Paraschiv, Kevin Reardon, and Philip Judge, assert that the infrared solar spectrum contains a wealth of physical data about the Sun and is being explored using modern detectors and technology with new ground-based solar telescopes. One such instrument will be the ground-based Cryogenic Near-IR Spectro-Polarimeter of the Daniel K. Inouye Solar Telescope.
Efficient and Automated Inversions of Magnetically-Sensitive Forbidden Coronal Lines: CLEDB - The Coronal Line Emission DataBase Magnetic Field Inversion Algorithm
Alin Paraschiv and Philip Judge present CLEDB, a single point inversion algorithm for determining magnetic parameters using spectro-polarimetric measurements of emission lines formed in the solar corona.
This paper identifies spectral lines from EUV to infrared wavelengths which are optimally suited to measuring vector magnetic fields as high as possible in the solar atmosphere.
Coronal loops, seen in solar coronal images, are believed to represent emission from magnetic flux tubes with compact cross sections. Anna Malanushenko, Matthias Rempel and others, examine the 3D structure of plasma above an active region in a radiative magnetohydrodynamic simulation to locate volume counterparts for coronal loops.
Rebecca Centeno, Matthias Rempel, Roberto Casini, and Tanausu del Pino Aleman study the effects of finite spectral resolution on the magnetic field values retrieved through the weak field approximation (WFA) from the cores of the Mg II h&k lines.