University Partnership

Stellar Evidence that the Sun May be in Transition

chromospheric activity and rotation in field dwarfs and subgiants
Friday, 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.

SOLAR COUSIN PRESENTS A MYSTERY FOR THE DYNAMO

HD30495 Figure 1
Thursday, December 3, 2015

What might happen to the well-known 11-year solar cycle if the Sun were spun up to rotate more than two times faster? To investigate such questions of the dependence of the Sun's internal dynamo on parameters such as rotation we must look to other stars with different physical conditions.

Philip Judge collaborates with Fudan University, China

Photograph of Fudan University, China

HAO Senior Scientist Philip Judge spent three weeks at China's Fudan University in October 2015. As an official Visiting Researcher, Philip worked with his host Roger Hutton, and recent graduate Wenxian Li, on magnetically sensitive emission lines formed in the solar corona.

Collaborating with Fudan University

HAO Senior Scientist Philip Judge spent three weeks at China's Fudan University in October 2015. As an official Visiting Researcher, Philip worked with his host Roger Hutton, and recent graduate Wenxian Li, on magnetically sensitive emission lines formed in the solar corona.

Preparing for the 2017 total Eclipse

Phil Judge and Paul Bryans

On 21 August 2017 a total solar eclipse will pass across the continental United States, from Oregon on the west coast to South Carolina on the east.

HAO Colloquium Series Presents Jim Fuller (Caltech)

Strong Internal Magnetic Fields Revealed by Suppressed Dipole Modes in Red Giant Stars

HAO Colloquium Series Presents Leon Ofman (CUA/NASA GSFC)

Acceleration and heating of the fast solar wind: waves, turbulence, and kinetic instabilities

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