Front Page

Recent News

January 23, 2018

The McIntosh Archive project gets double notice: it's the subject of a recent highlight by EOS spotlight, which profiles a feature article for the journal Space Weather by Webb et al. and again it is described in graphic form, by HAO's Don Kolinski, appearing on the cover of Space Weather—the McIntosh Archive "snake" stackplot of Solar Cycle 23.

Roberto Casini and Philip Judge image
December 14, 2017

Physics World presents an article co-authored by HAO senior scientists, Philip Judge and Roberto Casini, on the challenges for the "budding research scientist" when selecting a meaningful research field and future career.

Publication Highlights

Instability domains in low and middle latitudes
January 17, 2018

Peter Gilman presents results from an analytical model for magnetic buoyancy and ro­tational instabilities in a full spherical shell tachocline that includes rotation. differential rotation close to that observed helioseismicly, and toroidal field.

The evolution of the total daily (black) and hemispheric sunspot numbers
December 28, 2017

In 2011, three satellites—the Solar-Terrestrial RElations Observatory (STEREO) A & B, and the Solar Dynamics Observatory (SDO)—were in a unique spatial alignment that allowed a 360 degree view of the Sun. This alignment lasted until 2014, the peak of solar cycle 24.

magnetic effect of gravity and plasma pressure gradient
December 28, 2017

Astrid Maute states that accurate magnetic field measurements at ground and Low-Earth Orbit (LEO) are crucial to describe Earth's magnetic field. LEO data is also used to study the ionosphere.

MLSO Latest Images

CoMP Coronal Intensity

The COronal Multi-channel Polarimeter (CoMP) observes the Fe-XIII emission line at 1074.7 nm to measure the coronal magnetic field and obtain plasma density and motion in the low corona from ~1.03 to 1.5 solar radii.

GET CoMP DATA

K-Cor White Light Corona

Designed to study the formation and dynamics of coronal mass ejections and the evolution of the density structure of the low corona, K-Cor records the polarization brightness (pB).

GET K-COR DATA

K-Cor (radially graded filter)

K-Cor image with a normalized radially graded filter (nrgf) to maximize image contrast, especially in the outer field.

These data are ideal for measuring positions of coronal structures such as CMEs and helmet streamers.

People Profile