STEREO: Beyond 3D. Why the Sun? The sun provides energy for the development of life on our planet. Our orbit looks calm and peaceful, but there is nothing.

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Presentation transcript:

STEREO: Beyond 3D

Why the Sun? The sun provides energy for the development of life on our planet. Our orbit looks calm and peaceful, but there is nothing peaceful about the Sun...

Solar Minimum Solar Maximum The Sun’s Cycle

Components of Solar Activity Solar WindSunspots Solar Flares and Coronal Mass Ejection (CME) Magnetic Loops

Consequences of Solar Activity When Solar storms occur, they can: Produce the Northern Lights (Aurora Borealis)

STEREO MISSION The STEREO Mission with two satellites, has the ability to produce 3D images of solar events. However, STEREO has other instruments to measure and gather different types of data about the Sun.

STEREO Instruments

S/WAVES Data: Beyond 3D Images The instrument S/WAVES has the ability to track and probe radio waves emitted by CME and solar flare events What are radio waves? They are electromagnetic waves with the longest wavelength in the spectrum. Just like radio stations and TV satellites; stars, planets and gases in space also emit radio waves. STEREO collects radio waves data emitted during coronal mass ejections and solar flare events.

S/WAVES Data: Beyond 3D Images With this data, STEREO scientists will be able to: track CME’s and Solar flare electrons from their formation to their arrival at the magnetosphere. Just like cellphones and AM/FM radios use antennas for better reception of radio waves, each STEREO uses 3 6m long antennas to track and measure radio waves emitted from CMEs and Solar flare electrons

The S/WAVES Receivers 1 1. Radio receivers (HFR & LFRhi)- measures radio intensity in a frequency range of 16MHz to 40 MHz. 2. Low frequency receivers (LFRlo)- measures radio and plasma waves near the electron plasma frequency at 1AU (10-40KHz). 3. Fixed frequency receiver (FFR)- measures radio emissions at 33 MHz at high time resolution. 4. Time Domain Samplers (TDS)- makes wideband waveform measurements at one of several sample rates and bandwidths. These are the main components of the S/WAVES instrument

How are the radio data displayed?

Construct Your Own STEREO Model