HAO Research Highlights

A UV spectrum of α Cen A
April 21, 2021

We take a broad look at the problem of identifying the magnetic solar causes of space weather.

Graphic image of scatterplots of hourly mean zonal and meridional wind components
April 6, 2021

The neutral winds in the Mesosphere and Lower Thermosphere (MLT) region have been observed at King Sejong Station, Antarctica using a meteor radar and a Fabry-Perot interferometer (FPI) simultaneously.

Graphic image of magnetic perturbation
March 25, 2021

Kelvin waves are large scale wave that is important for Earth’s atmosphere. The Ultra-Fast Kelvin waves (UFKW) are a subset of the Kelvin waves that can propagate to the mesosphere and lower thermosphere (MLT) ~100km and above due to their high zonal phase speeds.

Graphic image of CLASP2 observations
March 11, 2021

The bulk of the emission from the plasma called "transition region" plasma originates from structures energetically connected both to the chromosphere and corona.

Graphic image showing scattering geometry
March 3, 2021

Prompted by a recent paper by Dima and Schad, we re-consider the problem of inferring magnetic properties of the corona using polarimetric observations of magnetic dipole (M1) lines.