HAO Research Highlights

The flare image in Hydrogen-alpha emission (Image courtesy of NSO).
August 5, 2016

Although listed as one of the most significant events of the last 80 years, the space weather storm of late May 1967 has been of mostly fading academic interest.

Evolution figure
July 13, 2016

In June 2013, the two scientific instruments onboard the second Sunrise mission witnessed, in detail, a small-scale magnetic flux emergence event as part of the birth of an active region.

3D simulation image
July 13, 2016

We present the first global 3D simulations of thermal convection in the oblate envelopes of rapidly-rotating solar-type stars.

chromospheric activity and rotation in field dwarfs and subgiants
July 1, 2016

The study of Sun-like stars helps us to put the Sun in context. HAO Newkirk Fellow Ricky Egeland has co-authored a new publication with Space Science Institute scientist Travis Metcalfe and Carnegie Fellow Jennifer van Saders.

May 24, 2016

The AAS Nova site is featured a recent publication in the AAS journal by Paul Bryans of HAO. In the past sungrazing comets have produced extreme ultraviolet emissions as they passed through the sun's corona.