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The Installation & Characterization of the Coronagraphic Upgrade to the Extreme Adaptive Optics Test Bed. Darrius Robinson. Extra Solar Planets. Orbit stars other than the sun Belong of planetary system As of Aug 2006, over 200 known exo-planets First published detection in 1988

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Presentation Transcript
slide1
The Installation & Characterization of the Coronagraphic Upgrade to the Extreme Adaptive Optics Test Bed

Darrius Robinson

extra solar planets
Extra Solar Planets
  • Orbit stars other than the sun
  • Belong of planetary system
  • As of Aug 2006, over 200 known exo-planets
  • First published detection in 1988
  • Referred to as Young Jupiter Planets

STAR

current methods of detection
Current Methods Of Detection

Astrometry

Radial Velocity

Pulsar Timing

Transit Method

Gravitational micro-lensing

Circumstellar disks

current problem direct imaging technique
Current Problem: Direct Imaging Technique
  • Lack of consistent Direct Imaging Detection Technique
  • Light from stars prevent us from viewing planets
  • Large contrast difference between stars and planets
my contribution
My Contribution

Measuring & Cutting Optical Fiber Cables

Installation of Components on LAO Testbed

Adding Shifts to IDL Code

Adding of Various Apertures to Code

Actual Testing & Collection of Data

light diffraction suppression
Light & Diffraction Suppression

Focal Plane

Pupil Plane

P

O

S

T

-

C

O

R

O

N

A

G

R

P

A

H

P

R

E

-

C

O

R

O

N

A

G

R

P

A

H

Pupil Plane

Camera Plane

various lyot stop sizes
25 Pixels

30 Pixels

Various Lyot Stop Sizes

5 Pixels

10 Pixels

15 Pixels

20 Pixels

35 Pixels

40 Pixels

slide15
Contrast Plot with & without Coronagraph Input

Intensity

Distance From Center (λ/D)

acknowledgements
Acknowledgements

Scott Severson

Darren Dillon

Don Gavel

Katie M

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