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How do scientists use solar eclipses to study the sun? What has NASA's Parker Solar Probe revealed about our sun's atmosphere? Join us for a 30-minute lecture investigating the solar atmosphere and discussions of the upcoming total solar eclipse, followed by a panel Q&A consisting of several astrophysicists to answer your questions about astrophysics and space science. Timestamps below:
00:00 Announcements
06:35 Description of Upcoming Solar Eclipse
10:36 Intro to Solar Atmosphere Presentation
11:52 Solar Atmosphere Presentation
45:10 Q&A for Solar Atmosphere Presentation
45:30 "Does the observation of Iron-14 lines in the corona tell you about electron densities?"
47:00 "How much lead time do we have before getting hit by solar particles?"
48:19 "Can computers predict when hazardous events might be emitted by the Sun?"
49:30 "Why do Wolf-Rayet stars eject their outer layers of gas?"
51:38 Intermission
1:01:10 Q&A Panel Introductions
1:03:40 "Why and how do sunspots form?"
1:05:17 "How close can spacecraft get to the Sun without being damaged?"
1:07:33 "Tell us about your research in dark matter and dark energy."
1:11:08 "How can I take a spectrum of the solar corona?"
1:13:12 "Can nuclear fusion take place inside a solar flare?"
1:14:32 "Do other types of stars have solar flares too?"
1:16:48 "How long do heliophysicists wish eclipses would last?"
1:19:10 "Why can't you place a sunshield a few meters in front of your telescope?"
1:22:20 "How much damage would a major solar event do to our satellites?"
1:28:46 "What is the life span of dark matter?"
1:30:18 "In what ways can nations protect against major solar events?
1:35:05 "Can GFCI circuits protect against major solar events?"
1:36:34 "Can you describe muon-catalyzed fusion?"
1:37:14 "Can the clumping of matter on small scales constrain the nature of dark matter?"
1:40:55 "Could Parker Solar Probe survive a major solar event?"
1:44:15 "How close are we to understanding the corona heating problem?"
1:47:46 "Do you find being an astrophysicist to be a rewarding profession?"
1:53:27 "Are there locations or times where dark matter is not present in the universe?"
1:57:54 "Which came first: dark matter or galaxies?"
1:58:34 "How do we explain the recently discovered galaxies lacking dark matter?"
2:00:46 Concluding Remarks
Title: Chasing the Solar Atmosphere using Eclipses and the Parker Solar Probe
Speaker: Gabriel Muro
Abstract:
"Never look directly at the Sun" is sage advice that has applied to astronomical observations of our nearest star for centuries. The technical challenge of measuring and understanding the sun requires specialized equipment, the perfect location, and a bit of luck. First, I'll discuss how spectroscopy, breaking sunlight into its constituent colors, has been used during the fleeting moments of total solar eclipses to glimpse at the inner workings of the corona, our sun's atmosphere. Then, I'll cover how NASA's most extreme heliophysics mission, Parker Solar Probe, measures highly energized particles to learn about the physics of solar storms. There will also be a brief information session on the upcoming total solar eclipse across North America on April 8, 2024.
Photo Credit: NASA Solar Dynamics Observatory