Living with(in) a star Rebecca Centeno High Altitude Observatory.
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Transcript of Living with(in) a star Rebecca Centeno High Altitude Observatory.
![Page 1: Living with(in) a star Rebecca Centeno High Altitude Observatory.](https://reader036.fdocuments.us/reader036/viewer/2022062422/56649f355503460f94c53e4e/html5/thumbnails/1.jpg)
Living with(in) a star
Rebecca Centeno High Altitude Observatory
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Credit: Daniel López(El cielo de Canarias)
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NASA/GOES
image taken from ISS
http://www.gibsontreecare.com/
Credit: Daniel López(El cielo de Canarias)
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Sunspots
Scheiner, 1625
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Scheiner, 1625NST/BBSO
Sunspots
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Solar Cycle
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SOHO/NASA
Solar Cycle
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Space Weather
Image credit: NASA
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Coronal Mass EjectionsSolar FlaresHigh Speed StreamsSolar Energetic Particles
Image credit: NASA
Space Weather
Sunspots are the main sources of the Sun's short-term variability
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Filament eruption (August 31, 2012)
SDO/AIA
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Filament eruption (August 31, 2012)
SDO/AIA
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Heliospheric current sheet(source: Lempfi, NASA GSFC)
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Heliospheric current sheet(source: Lempfi, NASA GSFC)
Credit: Windows to the Universe
BE
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Heliospheric current sheet(source: Lempfi, NASA GSFC)
Credit: Windows to the Universe
BE
BIMF
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Forecasting Space Weather
• Solar dynamo (generation of the Sun’s magnetic field)
• 3D topology and evolution of sunspot fields.
Schrijver & TitleMuñoz-Jaramillo
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Forecasting Space Weather
• Solar dynamo (generation of the Sun’s magnetic field)
• 3D topology and evolution of sunspot fields.
• What makes the magnetic fields of sunspots erupt?
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Forecasting Space Weather
• How much energy is released in the eruption? How will it propagate outwards into the interplanetary medium?
• Determining the direction of B at the magnetopause.
SunEarth
C. de Forest (SwRI)
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1362 kW/m²
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The Pale Blue Dot, 1990(picture of the Earth taken by Voyager 1
as it was about to leave the Solar System)
“All of human history has happened on that tiny pixel, which is our home.”
- Carl Sagan