transparencies - Rencontres de Moriond
... Spectral shape of HE electrons should be strongly affected by the number of nearby sources, and their distance distribution. If no such features in the high-energy electron spectrum are observed it will call into question our understanding of CR sources and propagation Kobayashi et al (2004) ...
... Spectral shape of HE electrons should be strongly affected by the number of nearby sources, and their distance distribution. If no such features in the high-energy electron spectrum are observed it will call into question our understanding of CR sources and propagation Kobayashi et al (2004) ...
Big Bang
... seem inconceivable that one could contemplate searching for life, insitu, at any time in the near future. • It would take about 45 years to reach Proxima Centauri using a spacecraft with the velocity of 1/10 light speed. • We will therefore consider only those methods that involve doing so from at d ...
... seem inconceivable that one could contemplate searching for life, insitu, at any time in the near future. • It would take about 45 years to reach Proxima Centauri using a spacecraft with the velocity of 1/10 light speed. • We will therefore consider only those methods that involve doing so from at d ...
Our Sun Produces Bizarre Radiation Bursts—Now NASA Knows Why
... Flares happen when active regions on the sun suddenly release explosions of magnetic energy. That accelerates particles to incredibly high speeds and creates intense bursts of light that can briefly outshine the sun itself. (Also see “How Sun-Watchers Stopped World War III in 1967.”) Scientists prev ...
... Flares happen when active regions on the sun suddenly release explosions of magnetic energy. That accelerates particles to incredibly high speeds and creates intense bursts of light that can briefly outshine the sun itself. (Also see “How Sun-Watchers Stopped World War III in 1967.”) Scientists prev ...
ALUMINIUM-26 IN THE EARLY SOLAR SYSTEM : A PROBABILITY
... The number of a few % is in contradiction with [22] claiming that 26Al is a common feature of planetary systems. According to [22], white dwarves chemical composition imply that these stars have swallowed differentiated asteroids. The observed variations of the white dwarves Fe/Al could however be d ...
... The number of a few % is in contradiction with [22] claiming that 26Al is a common feature of planetary systems. According to [22], white dwarves chemical composition imply that these stars have swallowed differentiated asteroids. The observed variations of the white dwarves Fe/Al could however be d ...
Pocket Solar System
... Making the Pocket Solar System model Refer to the illustrated instruction sheet to guide participants through the following steps: 1. Put the Sun at one end of the paper and the Kuiper belt at the other end. 2. Fold the paper in half and make sure you crease it firmly. Unfold the paper, draw a li ...
... Making the Pocket Solar System model Refer to the illustrated instruction sheet to guide participants through the following steps: 1. Put the Sun at one end of the paper and the Kuiper belt at the other end. 2. Fold the paper in half and make sure you crease it firmly. Unfold the paper, draw a li ...
Avogadro`s Number of Particles in a Mole
... Application and Relevance Activity: Avogadro's Number of Particles in a Mole Avogadro's number is such a huge number, and moles are so small, that it is difficult to relate their sizes to common objects. Imagine that a mole is the size of a planet or moon in our solar system. Choose a heavenly body ...
... Application and Relevance Activity: Avogadro's Number of Particles in a Mole Avogadro's number is such a huge number, and moles are so small, that it is difficult to relate their sizes to common objects. Imagine that a mole is the size of a planet or moon in our solar system. Choose a heavenly body ...
Chapter 13 Notes – The Deaths of Stars
... Sun will expand to a red giant in ______________ billion years Expands to ______________ radius Earth will then be ___________________ Sun MAY form a ________________ nebula (but uncertain) Sun’s C, O core will become a ______________ dwarf VIII. The Deaths of Massive Stars: Supernovae F ...
... Sun will expand to a red giant in ______________ billion years Expands to ______________ radius Earth will then be ___________________ Sun MAY form a ________________ nebula (but uncertain) Sun’s C, O core will become a ______________ dwarf VIII. The Deaths of Massive Stars: Supernovae F ...
Frequency Converters in ESA Stations
... Point mass and relativistic perturbative accelerations in the solar-system barycentric frame of reference according to Moyer [1971, 2000]. Coordinate time is expressed in TDB time scale. Considered Bodies: Sun, Planets, Pluto, the Moon, Phobos & Deimos and the big three asteroids DE405 planetary eph ...
... Point mass and relativistic perturbative accelerations in the solar-system barycentric frame of reference according to Moyer [1971, 2000]. Coordinate time is expressed in TDB time scale. Considered Bodies: Sun, Planets, Pluto, the Moon, Phobos & Deimos and the big three asteroids DE405 planetary eph ...
3D View of a Comet`s Neighborhood
... in stationary equilibrium [11]. Deca and colleagues reproduce this selection effect with their simulations, although they do not rule out other possible mechanisms, such as electron acceleration by electromagnetic or Alfvén waves that produce traveling regions of nonzero electric field. PIC simulati ...
... in stationary equilibrium [11]. Deca and colleagues reproduce this selection effect with their simulations, although they do not rule out other possible mechanisms, such as electron acceleration by electromagnetic or Alfvén waves that produce traveling regions of nonzero electric field. PIC simulati ...
the solar photosphere - Space Weather Services
... field (up to several thousand gauss) which inhibit heat flow to the surface from the convection zone below. FACULAE Faculae are bright areas that are only seen near the limb where the apparent photospheric intensity decreases due to “limb darkening”. These features are seen better at the H-alpha wav ...
... field (up to several thousand gauss) which inhibit heat flow to the surface from the convection zone below. FACULAE Faculae are bright areas that are only seen near the limb where the apparent photospheric intensity decreases due to “limb darkening”. These features are seen better at the H-alpha wav ...
Chapter 9 The Sun - Otto
... • 3rd nucleus has less mass than sum of two nuclei • Mass converted to energy E = mc2 • Need high temperature to overcome charge repulsion ...
... • 3rd nucleus has less mass than sum of two nuclei • Mass converted to energy E = mc2 • Need high temperature to overcome charge repulsion ...
The Formation of the Solar System
... the cloud collapsed, it spun faster, further increasing the temperature and pressure at its core. Over time, the cloud became hot enough for nuclear fusion to begin. This caused the contracting material to form a disc of gas and dust around the core of the protostar. Using large telescopes, astronom ...
... the cloud collapsed, it spun faster, further increasing the temperature and pressure at its core. Over time, the cloud became hot enough for nuclear fusion to begin. This caused the contracting material to form a disc of gas and dust around the core of the protostar. Using large telescopes, astronom ...
The Science of Solar B Transient phenomena
... Coronal Heating – this problem has been around for many decades and huge progress has been made. We now know that the origin of this once mysterious heating is magnetic in origin. However we now need to probe this further with Solar-B’s high spatial, temporal and velocity resolution in order to dist ...
... Coronal Heating – this problem has been around for many decades and huge progress has been made. We now know that the origin of this once mysterious heating is magnetic in origin. However we now need to probe this further with Solar-B’s high spatial, temporal and velocity resolution in order to dist ...
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.