roger blandford kipac stanford
Download
Skip this Video
Download Presentation
Exploring the Crab Nebula with the Hubble, Chandra and Fermi Space Telescopes

Loading in 2 Seconds...

play fullscreen
1 / 27

Exploring the Crab Nebula with the Hubble, Chandra and Fermi Space Telescopes - PowerPoint PPT Presentation


  • 109 Views
  • Uploaded on

Roger Blandford KIPAC Stanford. Exploring the Crab Nebula with the Hubble, Chandra and Fermi Space Telescopes. Anasazi Indians. Charles Messier. Sam Okoye discovers compact radio source. Franco Pacini predicts Crab Nebula Powered by Neutron Star . Jocelyn Bell Discovers Pulsars.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Exploring the Crab Nebula with the Hubble, Chandra and Fermi Space Telescopes' - miron


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
john bahcall 1934 2005
John Bahcall (1934-2005)

Astrophysicist

Astronomical Leader

Mentor to Young Scientists

Champion of Hubble Space Telescope

NASM

slide10

VERITAS/H.E.S.S.

High Energy Astronomy!

eVkeVMeVGeVTeVPeVEeVZeV

LIGO

X

Radio

Gamma-Rays

Cosmic Rays

Ice Cube

Electromagnetic waves comprise particles calledPhotons

Cosmic rays comprise mainly Protons and Electrons

NASM

the pulsing g ray sky
The Pulsing g-ray Sky

Pulses at

1/10th true rate

NASM

supernova explosion
Supernova Explosion

Supernova 1987a

in Magellanic Cloud

NASM

the entire spectrum
The Entire Spectrum

TeV

Synchrotron

Radiation

Compton

Scattering

Gamma Rays

Radio

NASM

synchrotron radiation
Synchrotron Radiation

10 TeV

~0.01 Gauss

10 keV

Maximum Synchrotron Photon Energy ~ 100 MeV

NASM

compton scattering
Compton Scattering

10 TeV Electron

0.1 eV Infrared Photon

5 TeV Electron

5 TeV Gamma-rayPhoton

NASM

neutron star
Neutron Star
  • Mass: 1.5 suns
  • Radius: 10 km
  • Density: million, billion x water
  • Rotation Rate: 30 per second
  • Magnetic Field: 1 trillion Gauss

Wilson

NASM

faraday s disk
Faraday’s Disk

Magnet

Conducting

Disk

Crank

Voltage: 50 PetaVolts

Current: 300 TeraAmps

Power: 100,000 Suns

NASM

spectral changes
Spectral Changes

September Flare

4 day variation

Synchrotron

Radiation

Limit

Compton

Scattering

Synchrotron

Radiation

NASM

where is the flare
Where is the Flare?

Pulsar

Torus

Jet

NASM

ad