1 - INFN-LNF
... The plasma regimes experienced by the Laplace spacecraft are the solar wind and the magnetosphere of Jupiter, and varies through the mission as Laplace travels from Earth to Jupiter. In general, the energetic radiation environment consists of magnetically trapped charged particles, solar protons and ...
... The plasma regimes experienced by the Laplace spacecraft are the solar wind and the magnetosphere of Jupiter, and varies through the mission as Laplace travels from Earth to Jupiter. In general, the energetic radiation environment consists of magnetically trapped charged particles, solar protons and ...
PowerPoint 簡報
... Acceleration sensor and altimeter “Records the accelerations in three axis with a compatible data logger. Can be placed in a vest during outdoor dynamic experiments. Can also record altitude change.” ...
... Acceleration sensor and altimeter “Records the accelerations in three axis with a compatible data logger. Can be placed in a vest during outdoor dynamic experiments. Can also record altitude change.” ...
Star Formation
... Once the core Helium supply runs out: - Inert Carbon core is left behind and starts to contract - Helium just above core fuses into Carbon (He-burning shell) (H-burning shell remains above) - Excess heat causes the star to expand (2nd Red Giant stage) ...
... Once the core Helium supply runs out: - Inert Carbon core is left behind and starts to contract - Helium just above core fuses into Carbon (He-burning shell) (H-burning shell remains above) - Excess heat causes the star to expand (2nd Red Giant stage) ...
The Sun
... rotation, structure of the Sun, convection, sunspots, solar flares, and prominences. Low (EOC) ...
... rotation, structure of the Sun, convection, sunspots, solar flares, and prominences. Low (EOC) ...
The solar energetic balance and the dynamics of the radiative zone
... solar models, also 2-3D simulations • Very small effect on the solar structure except near the surface • Then we will examine the interplay between phenomena and estimate the potential for other cycles or variabilities than the 11 year in order to better predict the variability of the solar activity ...
... solar models, also 2-3D simulations • Very small effect on the solar structure except near the surface • Then we will examine the interplay between phenomena and estimate the potential for other cycles or variabilities than the 11 year in order to better predict the variability of the solar activity ...
How does the solar wind blow? A simple kinetic model
... because this medium is ionized and very hot, it conducts heat very efficiently; hence the temperature decreases very slowly with altitude so that the thermal energy becomes greater than the gravitational energy beyond about ten solar radii. In static fluid equilibrium, the pressure would not decreas ...
... because this medium is ionized and very hot, it conducts heat very efficiently; hence the temperature decreases very slowly with altitude so that the thermal energy becomes greater than the gravitational energy beyond about ten solar radii. In static fluid equilibrium, the pressure would not decreas ...
New detailed images of the sun
... magnetic loops collapsing during flares, phenomena not predicted by theory. ...
... magnetic loops collapsing during flares, phenomena not predicted by theory. ...
Fusion Fuels, Resource Base, Solar System.
... actually knows how to burn D-He3, and there are side reactions where the deuterons react with each other instead of the helium, producing useless neutrons. However, that’s just an engineering problem. The main drawback is logistics: where are the necessary Gt of helium-3 per mission going to come fr ...
... actually knows how to burn D-He3, and there are side reactions where the deuterons react with each other instead of the helium, producing useless neutrons. However, that’s just an engineering problem. The main drawback is logistics: where are the necessary Gt of helium-3 per mission going to come fr ...
AMPTE: NOTES ON THE INITIAL ... WORK IN PROGRESS _ _ _ _ _... _
... tronvolts. Up to this time, the instrumentation did not exist to determine what kinds of particles they werehydrogen, helium, or oxygen. There is an immense amount of literature speculating on the nature of ring current composition. The American spacecraft on AMPTE, the Charge Composition Explorer, ...
... tronvolts. Up to this time, the instrumentation did not exist to determine what kinds of particles they werehydrogen, helium, or oxygen. There is an immense amount of literature speculating on the nature of ring current composition. The American spacecraft on AMPTE, the Charge Composition Explorer, ...
The Rise of Solar Cycle 24
... Are CMEs (or CME ‘legs’) for increase during maximum activity? Or are there durable open flux changes related to the increased surface fields? ...
... Are CMEs (or CME ‘legs’) for increase during maximum activity? Or are there durable open flux changes related to the increased surface fields? ...
Lecture 9
... – Leads to solar flares – Magnetic fields are also wiggled by convection, so they give energy to corona – Cause solar wind ...
... – Leads to solar flares – Magnetic fields are also wiggled by convection, so they give energy to corona – Cause solar wind ...
Activity #1: The Mass Density Profile of the Solar System
... Activity #2: The Temperature Profile of the Solar System That temperatures of objects change with distance from the Sun is perhaps obvious. A more specific question to ask is how the temperature of the original solar nebula behaved vs. distance from the forming Sun (“protosun”). This is a more fund ...
... Activity #2: The Temperature Profile of the Solar System That temperatures of objects change with distance from the Sun is perhaps obvious. A more specific question to ask is how the temperature of the original solar nebula behaved vs. distance from the forming Sun (“protosun”). This is a more fund ...
A Solar Polar Imager Concept - The National Academies of
... lines of meridional flow. Red lines: Sound wave (plongitude and latitude is visible 50% of the time; mode) ray paths that can be used to measure the with observations from both Earth and a subsurface meridional flows from high latitude. potential SPI, this increases to nearly 80% for all longitudes ...
... lines of meridional flow. Red lines: Sound wave (plongitude and latitude is visible 50% of the time; mode) ray paths that can be used to measure the with observations from both Earth and a subsurface meridional flows from high latitude. potential SPI, this increases to nearly 80% for all longitudes ...
Stellar Winds and Hydrodynamic Atmospheres
... can winds of hot stars be driven by pressure only? crucial observational facts: ● cool winds, no corona: Twind ~ Teff ~ 40000K vs ~ 20 km/s ● sonic point v = vs very close to photosphere at r ~ 1.05 ● vesc ~ 500 … 1000km/s with pressure driven wind theory ...
... can winds of hot stars be driven by pressure only? crucial observational facts: ● cool winds, no corona: Twind ~ Teff ~ 40000K vs ~ 20 km/s ● sonic point v = vs very close to photosphere at r ~ 1.05 ● vesc ~ 500 … 1000km/s with pressure driven wind theory ...
Magnetosphere www.AssignmentPoint.com A magnetosphere is the
... were able to study the variations in Earth's magnetic field as functions of both time and latitude and longitude. Beginning in the late 1940s, rockets were used to study cosmic rays. In 1958, Explorer 1, the first of the Explorer series of space missions, was launched to study the intensity of cosmi ...
... were able to study the variations in Earth's magnetic field as functions of both time and latitude and longitude. Beginning in the late 1940s, rockets were used to study cosmic rays. In 1958, Explorer 1, the first of the Explorer series of space missions, was launched to study the intensity of cosmi ...
What is the solar system?
... How do we know all of this information about our solar system? Scientists created the telescope, which uses lenses to see distant objects. This telescope is designed after Galileo Galilei’s—a 1610 astronomer who discovered moons revolving around Jupiter. ...
... How do we know all of this information about our solar system? Scientists created the telescope, which uses lenses to see distant objects. This telescope is designed after Galileo Galilei’s—a 1610 astronomer who discovered moons revolving around Jupiter. ...
Advanced Composition Explorer
Advanced Composition Explorer (ACE) is a NASA Explorers program Solar and space exploration mission to study matter comprising energetic particles from the solar wind, the interplanetary medium, and other sources. Real-time data from ACE is used by the NOAA Space Weather Prediction Center to improve forecasts and warnings of solar storms. The ACE robotic spacecraft was launched August 25, 1997 and entered a Lissajous orbit close to the L1 Lagrangian point (which lies between the Sun and the Earth at a distance of some 1.5 million km from the latter) on December 12, 1997. The spacecraft is currently operating at that orbit. Because ACE is in a non-Keplerian orbit, and has regular station-keeping maneuvers, the orbital parameters at right are only approximate. The spacecraft is still in generally good condition in 2015, and is projected to have enough fuel to maintain its orbit until 2024. NASA Goddard Space Flight Center managed the development and integration of the ACE spacecraft.