Public Lectures

Surprising Solar Flares: Studying the Sun as a Star

Published on September 5, 2016

Surprising Solar Flares: Studying the Sun as a Star
Speaker:Tom Woods
Date:Wednesday, Feb 01, 2017
Time:7:30 PM
Location:LSTB (1234 Innovation Drive)

Seminar Abstract:

Solar flares, as well as their often eruptive companions called coronal mass ejections (CMEs), have been studied for decades. While most of these studies involve imaging the Sun, observations of the Sun as a star (full-disk irradiance) have also revealed interesting results through exploring the spectral variability during flare events. These Sun-as-a-star flare measurements have been made over the past two solar cycles with LASP-built instruments aboard the NASA UARS, TIMED, SORCE, SDO, and MinXSS satellites. Some of the new results from such studies include understanding the flare variability over all wavelengths from the energetic X-rays to the visible, discovering and classifying different flare phases, using coronal dimming measurements to predict CME properties of mass and velocity, and better understanding coronal heating processes.

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