Quiz Me ! Cosmic Ray Electron Propagation Cosmic Ray Nucleon Transport Spectral Index Modelling –...

Quiz Me

Cosmic Ray Electron Propagation

Cosmic Ray Nucleon Transport

Spectral Index Modelling ndash NGC 891 amp NGC 253

Diffuse γ-Ray Modelling

Cosmic rays were first determined to be coming from outer

space when hellip

a sharp increase in cosmic rays was observed when ET was released in 1982

Michelson amp Morley performed their famous experiment in 1887 determining that there was no

ether surrounding the earth

Viktor Hess in 1912 carried ionization chambers to high altitudes and detected an increase in

radiation as he ascended

August 7th

1912

The project based in Utah amp Argentina that when completed will be the

largest cosmic ray detection array ever built is known as hellip

the Blair Witch project

the Manhattan project

Pierre Auger project

The highest ever detected energy of a cosmic ray is hellip

~ 3 [eV]

~ 3bull1020

[eV]

~ 3bull1050

[eV]

How long are CRs trapped in the Galaxy

~ 3bull10-17

[sec]

~ 20 million [years]

~ Hubble Time

Cosmic rays are caused by hellip

the sun

supernova remnants

flying monkeys

Large Area Telescope EGRET

Energy Range 20 MeV ndash 300 GeV 30 MeV ndash 10 GeV

Peak Effective Area gt 8000 cm2 1500 cm2

Field of View gt 2 sr 05 sr

Angular Resolutionlt 35o (at 100 MeV)lt 015o (at gt 10 GeV)

58o (at 100 MeV)

Point Source Sensitivity lt 610-9 cm-2 s-1 10-7 cm-2 s-1

boundary between a diffusion dominated and convection dominated regime

solution in the disk

Cosmic rays are responsible for hellip

the expansion of the universe

causing cancer among airline passengers

aurorae

the depletion of the ozone layer

New theory predicts the largest ozone hole over Antarctica will occur this month ndash

Cosmic Rays at fault

- - - University of Waterloo Sept 2008

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Cosmic rays were first determined to be coming from outer

space when hellip

a sharp increase in cosmic rays was observed when ET was released in 1982

Michelson amp Morley performed their famous experiment in 1887 determining that there was no

ether surrounding the earth

Viktor Hess in 1912 carried ionization chambers to high altitudes and detected an increase in

radiation as he ascended

August 7th

1912







~ 3 [eV]

~ 3bull1020

[eV]

~ 3bull1050

[eV]


~ 3bull10-17

[sec]


~ Hubble Time


the sun

supernova remnants

flying monkeys






58o (at 100 MeV)







aurorae





with

with

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~ 3 [eV]

~ 3bull1020

[eV]

~ 3bull1050

[eV]


~ 3bull10-17

[sec]


~ Hubble Time


the sun

supernova remnants

flying monkeys






58o (at 100 MeV)







aurorae





with

with

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~ 3bull10-17

[sec]


~ Hubble Time


the sun

supernova remnants

flying monkeys






58o (at 100 MeV)







aurorae





with

with

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the sun

supernova remnants

flying monkeys






58o (at 100 MeV)







aurorae





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58o (at 100 MeV)







aurorae





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aurorae





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Quiz Me ! Cosmic Ray Electron Propagation Cosmic Ray Nucleon Transport Spectral Index Modelling –...

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Transcript of Quiz Me ! Cosmic Ray Electron Propagation Cosmic Ray Nucleon Transport Spectral Index Modelling –...