Paul Bryans

Detecting the Chromospheric Footpoints of the Solar Wind

Graphic image depicting SDO and IRIS full-disk observations
Tuesday, November 24, 2020

Coronal Holes present the source of the fast solar wind. However, the fast solar wind is not unimodal—there are discrete, but subtle, compositional, velocity, and density structures that differentiate different coronal holes as well as wind streams that originate within one coronal hole.

A new facility for airborne solar astronomy: NASA’s WB-57 at the 2017 total solar eclipse

Fully processed image of the corona generated by stacking many co-aligned, calibrated images
Tuesday, April 14, 2020

NASA's WB-57 High Altitude Research Program provides a deployable, mobile, stratospheric platform for scientic research.

Paul Bryans interviewed by Sun Superheroes

Photographic image of Solar Eclipse Team, Chile, 2019

Paul Bryans tells Sun Superheroes that a solar eclipse is an opportunity to understand and study the Sun's magnetism. During a solar eclipse, when the moon blocks the Sun, it allows scientists to study the strength and shape of the Sun's surrounding magnetic field.

Instrument Calibration of the Interface Region Imaging Spectrograph (IRIS) Mission

 Schematic view of IRIS
Saturday, September 15, 2018

The Interface Region Imaging Spectrograph (IRIS) is a NASA Small Explorer mission that provides high-resolution spectra and images of the Sun in the 133–141 nm and 278–283 nm wavelength bands.

On the Fine Structure Splitting of the 3p43d4D5/2 and 3p43d4D7/2 Levels of FE X

Raw S082B image with wavelength scale
Thursday, October 20, 2016

We study UV spectra obtained with the SO82-B slit spectrograph on board SKYLAB to estimate the fine structure splitting of the Cl-like 3p43d4D5/2 and 3p43d4D7/2 levels of Fe X.

On the Connection between Propagating Solar Coronal Disturbances and Chromospheric Footpoints

SDO/AIA 171Å sub-fields
Wednesday, September 14, 2016

The Interface Region Imaging Spectrograph (IRIS) provides an unparalleled opportunity to explore the (thermal) interface between the chromosphere, transition region, and the coronal plasma observed by the Atmospheric Imaging Assembly (AIA) of the Solar Dynamics Observatory (SDO).

HAO's Paul Bryans is featured in Science News

1999 total eclipse

On August 21, 2017, Paul Bryans and his team of scientists will be ready to aim a spectrometer at the sun during total eclipse in an effort to detect the effect of magnetism on certain wavelengths of infrared light emitted by the corona.

Paul Bryans

Paul is a Project Scientist in the High Altitude Observatory at NCAR. He received his PhD on the spectral emission of non-Maxwellian plasmas from the University of Strathclyde in the UK in 2005.

Comet ISON's missing light

Tuesday, 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.

Preparing for the 2017 total Eclipse

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. The eclipse will be a phenomenal experience for the millions of people who see it, but it also offers a unique opportunity to conduct scientific research of the solar atmosphere.


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