Transcript presentation slides

Living with(in) a star
Rebecca Centeno
High Altitude Observatory
Credit: Daniel López
(El cielo de Canarias)
http://www.gibsontreecare.com/
image taken from ISS
Credit: Daniel López
(El cielo de Canarias)
NASA/GOES
Sunspots
Scheiner, 1625
4
Sunspots
NST/BBSO
Scheiner, 1625
5
Solar Cycle
Solar Cycle
SOHO/NASA
Space Weather
Image credit: NASA
Space Weather
Sunspots are the main sources of the Sun's short-term variability
Coronal Mass Ejections
Solar Flares
High Speed Streams
Solar Energetic Particles
Image credit: NASA
Filament eruption (August 31, 2012)
SDO/AIA
Filament eruption (August 31, 2012)
SDO/AIA
Heliospheric current sheet
(source: Lempfi, NASA GSFC)
Heliospheric current sheet
(source: Lempfi, NASA GSFC)
BE
Credit: Windows to the Universe
BIMF
Heliospheric current sheet
(source: Lempfi, NASA GSFC)
BE
Credit: Windows to the Universe
Forecasting Space Weather
• Solar dynamo (generation of the Sun’s magnetic field)
• 3D topology and evolution of sunspot fields.
Muñoz-Jaramillo
Schrijver & Title
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?
Forecasting Space Weather
Earth
Sun
C. de Forest (SwRI)
• 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.
1362 kW/m²
“All of human history has happened on that tiny pixel,
which is our home.”
- Carl Sagan
The Pale Blue Dot, 1990
(picture of the Earth taken by Voyager 1
as it was about to leave the Solar System)