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Grand Challenge Research on Subauroral Polarization Streams

Joule heating of the ionosphere simulated by the NCAR TIE-GCM

A team from the NCAR High Altitude Observatory, Johns Hopkins University, and Rice University, led by HAO scientist Wenbin Wang, was awarded a prestigious NASA Heliophysics Grand Challenge Research Grant to study the magnetosphere-ionosphere interaction known as subauroral polarization streams.

AAS Nova Highlights Article About Measuring the Suns Activity On The Scale Used For The Stars

Cycle 23 data and cycle shape model fits
Wednesday, November 30, 2016

The American Astronomical Society (AAS) NOVA website is highlighting a recent publication by HAO's Ricky Egeland (graduate research fellow) titled The Mount Wilson Observatory S-Index of the Sun. The new paper has been accepted for publication in the Astrophysical Journal.

Annie Maunder, A Pioneer of Solar Astronomy

If you have visited the High Altitude Observatory, you may recall seeing the Maunder’s original butterfly diagram. The chart resembles three butterflies traveling west. Drawn by Annie S.D. Maunder and E.

Azaymi Siu investigates the penumbra of sunspots

Azaymi Litzi Siu Tapia

Azaymi Litzi Siu Tapia is a PhD student in Solar Physics at Max Planck Institute for Solar System Research and the University of Gottingen in Germany, since August 2014. She is working with Andreas Lagg and Sami K.

Kevin Dalmasse and Space Weather Forcasting

Kevin Dalmasse is currently finishing a 2-year postdoc jointly funded by CISL and an Air Force grant from HAO Senior Scientist, Sarah Gibson.

Javier Trujillo Bueno

Submitted by whawkins on July 8, 2016 - 9:02am

Javier Trujillo Bueno is an affiliate scientist at HAO/NCAR. He has a doctorate in Physics from the University of Göttingen (Germany) and is a Research Professor of the Spanish Higher Council for Scientific Research (CSIC), destined to the Instituto de Astrofísica de Canarias (IAC).

Silvano Fineschi

Submitted by whawkins on July 8, 2016 - 9:00am

Silvano Fineschi is an affiliate scientist in the High Altitude Observatory for the National Center for Atmospheric Research. He is currently a scientist at the Observatory of Turin.

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.

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The National Center for Atmospheric Research is sponsored by the National Science Foundation. Any opinions, findings and conclusions or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.