Watch%20This%20Space!%20Monsters%20at%20Work - PowerPoint PPT Presentation

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Watch%20This%20Space!%20Monsters%20at%20Work

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Scary monsters at work. Watch This Space! Monsters at Work. Liz Puchnarewicz. Mullard Space Science Laboratory. University College London ... – PowerPoint PPT presentation

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Title: Watch%20This%20Space!%20Monsters%20at%20Work


1
Watch This Space!Monsters at Work
  • Liz Puchnarewicz
  • Mullard Space Science Laboratory
  • University College London

2
Light comes in waves or packets
electromagnetic waves
photons
3
It all goes at the same speed
4
White light
5
Hot light
6
Hot light from stars
7
Thick heat
dense gas slab
8
Quasar soft X-ray spectra
9
Spectral lines
10
Atomic line transitions
Lya
11
Emission line spectra
No. of photons
energy
wavelength
12
Cosmological distances
quasar
13
X-ray spectra from space
The XMM-Newton observatory
14
Fluorescence
15
Iron disks in X-rays
16
Quasar accretion disks
17
The disk in MCG-6-30-15
18
A very hot corona
disk line
No. of photons
disk continuum
energy
EUV
UV
soft X-rays
hard X-rays
wavelength
19
Electrons kick light into X-rays
Inverse Compton scattering
20
A quasar
21
Thin heat
thin gas slab
22
Gamma-ray bursts
23
Ultimate devastation
The SWIFT mission
24
Scary monsters at work
25
Watch This Space!Monsters at Work
  • Liz Puchnarewicz
  • Mullard Space Science Laboratory
  • University College London
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