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July 9, 2020

Wendy held her first social distancing book club meeting on her outdoor patio. Instead of offering the usual tasty treats she presented a selection of cleaning products, paper towels, and hand sanitizer.

Recent News

Graphic image of individual frames from the movie showing Venus' transit
July 2, 2020

A coronagraph instrument at the Mauna Loa Solar Observatory on Hawai’i is used by a team of two scientists to record the rare transit of Venus across the Sun's corona. Sky & Telescope describes the movie captured by Alfred de Wijn (High Altitude Observatory, NCAR) and Gunther Können (Royal Netherlands Meteorological Institute).

Graphic image of NASA's Parker Solar Probe
June 12, 2020

NASA released a story about the The Whole Heliosphere and Planetary Interactions (WHPI) campaign that took place in coordination with Parker Solar Probe’s fourth perihelion.

Publication Highlights

Graphic image depicting a comparison of 1D and 3D calculations
July 1, 2020

We re-examine a 50+ year-old problem of deep central reversals predicted for strong solar spectral lines, in contrast to the smaller reversals seen in observations.

Graphic depicting simulated vertical E x B drift velocity
July 1, 2020

We conducted numerical simulations to examine dayside thermosphere and ionosphere responses to concurrent solar flares and a geomagnetic storm during September 6th – September 11th, 2017, as well as the interplay of flare and storm effects.

Graphic image of Line Profiles of He I and He II Resonance Line
June 17, 2020

In the context of the solar atmosphere, we re-examine the role of of neutral and ionized species in dissipating the ordered energy of intermediate-mode MHD waves into heat.

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.

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