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Assignment 4
Assignment 4

astron_ch_7b
astron_ch_7b

AS703 Introduction to Space Physics Fall 2013 Instructor: Theodore A. Fritz
AS703 Introduction to Space Physics Fall 2013 Instructor: Theodore A. Fritz

Magnetism and electron configuration
Magnetism and electron configuration

Kein Folientitel
Kein Folientitel

... The boundary separating the subsonic (after bow shock) solar wind from the cavity generated by the Earth‘s magnetic field, the magnetosphere, is called the magnetopause. The solar wind compresses the field on the dayside and stretches it into the magnetotail (far beyond lunar orbit) on the nightside ...
The Sun - rosedalegrade9astronomy
The Sun - rosedalegrade9astronomy

1. A bar magnet is broken in half. Each half is broken in half again
1. A bar magnet is broken in half. Each half is broken in half again

... A) work is required to move a magnetic pole through a closed path surrounding a current B) a time-varying electric flux acts as a current for purposes of producing a magnetic field C) the speed of light could be determined from simple electrostatic and magnetostatic experiments (finding the values o ...
11. Sea Floor Spreading
11. Sea Floor Spreading

Vocabulary # 1
Vocabulary # 1

... Chromosphere- a layer of the sun that is ten times hotter than the photosphere Corona- a layer of a star that escapes the star’s gravity and extends millions of miles into space as solar wind Magnetic Field- a region around a magnetic material within which the force of magnetism acts Surface- the ou ...
Northern Lights (Aurora Borealis)
Northern Lights (Aurora Borealis)

... Cosmic Rays are a form of radiation and come from some of the most violent objects in the universe: • Supernova • Neutron • Star • Black hole These rays were first discovered by Victor Hess in 1912 by flying hot air balloons to altitudes of 5km he found the air was much more ionised higher in the at ...
Earth
Earth

... Where is the highest amount of the solar radiation? equator Where is the lowest amount of solar radiation? North and south pole How does this relate to climate around the ...
Modelling of the magnetic field By M. Kruglanski The Earth`s
Modelling of the magnetic field By M. Kruglanski The Earth`s

... described by a set of current systems such as : • a current system at the edge of the magnetosphere (magnetopause) where solar wind interaction occurs; • a current system within the "neutral layer" which extends in the magnetosphere tail in the opposite direction to the Sun; • a current system surro ...
Sun`s Magnetism - Mentor Public Schools
Sun`s Magnetism - Mentor Public Schools

... Suggests that (ferro) magnetism is related to the spin of valence electrons in elements such as iron, nickel and cobalt ...
(CP20) A bare nucleus of the atom 8O16 is accelerated from rest by
(CP20) A bare nucleus of the atom 8O16 is accelerated from rest by

OUR SUN
OUR SUN

The Aurora
The Aurora

Aurora Reading
Aurora Reading

... The short answer to how the aurora happens is that energetic electrically charged particles (mostly electrons) accelerate along the magnetic field lines into the upper atmosphere, where they collide with gas atoms, causing the atoms to give off light. But why does that happen? To find the answer, we ...
Auroras - MIT Haystack Observatory
Auroras - MIT Haystack Observatory

Aurorae - School
Aurorae - School

eassy - BSE8J2009
eassy - BSE8J2009

... magnetosphere and charged particles everywhere in the field. Solar particles are always entering the tail of the magnetosphere from the solar wind and moving toward the Sun. Now and then, when conditions are right, the build-up of pressure from the solar wind creates an electric voltage between the ...
Layers of the Atmosphere
Layers of the Atmosphere

auroras in jovian planets
auroras in jovian planets

... Jupiter: Exceptional magnetosphere: •Size •Intensity •Interaction with Io (source of plasma for the magnetosphere of Jupiter) ...
< 1 ... 103 104 105 106 107

Aurora



An aurora is a natural light display in the sky, predominantly seen in the high latitude (Arctic and Antarctic) regions. Auroras are produced when the magnetosphere is sufficiently disturbed by the solar wind that the trajectories of charged particles in both solar wind and magnetospheric plasma, mainly in the form of electrons and protons, precipitate them into the upper atmosphere (thermosphere/exosphere), where their energy is lost. The resulting ionization and excitation of atmospheric constituents emits light of varying colour and complexity. The form of the aurora, occurring within bands around both polar regions, is also dependent on the amount of acceleration imparted to the precipitating particles. Precipitating protons generally produce optical emissions as incident hydrogen atoms after gaining electrons from the atmosphere. Proton auroras are usually observed at lower latitudes. Different aspects of an aurora are elaborated in various sections below.
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