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Transcript of Http:// Einstein’s Lens Presented by: Kevin McLin, SSU NASA E/PO 2008 EA Training, SSU...
http://www.universeforum.org/einstein/
Einstein’s Lens
Presented by: Kevin McLin, SSU NASA E/PO
2008 EA Training, SSU
Einstein’s Lens
http://www.universeforum.org/einstein/
Einstein’s Lens
Einstein’s big idea
Mass bends space. Light follows the shortest path through space.
http://www.universeforum.org/einstein/
Einstein’s Lens
So a star’s position in the sky…
Einstein’s big idea
Star here…
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Einstein’s Lens
…appears shifted because of the bending.
Einstein’s big idea
Appears to be here
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Einstein’s Lens
Read all about it…
This headline appeared in The New York Times on November 10, 1919.
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Einstein’s Lens
What shape is your lens?
Spherical lens gives an Einstein ring
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Einstein’s Lens
Elongated lens gives multiple images – Einstein Cross
What shape is your lens?
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Einstein’s Lens
What shape is your lens?
Multiple lenses give multiple sets of arcs and arclets
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Einstein’s Lens
Gravitational lenses have become one of the most important tools in modern astronomy
Aside from nice pictures, what can lensing do for us?
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Einstein’s Lens
Exposing Dark Matter
Foreground mass distorts images of background objects
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Einstein’s Lens
Weak Lensing... Correlated Distortions
Look for correlations in galaxy orientations in small region of image
Image Credit: Y. Mellier
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Einstein’s Lens
A Smoking Gun for Dark Matter
These correlations give a map along the line of sight of the matter distribution
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Einstein’s Lens
Black hole hunting
A black hole’s presence is revealed by its own gravity.
Animation Here
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Einstein’s Lens
Not just proof of an amazing idea, but a cutting-edge tool of 21st century astronomy.
Full Circle
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Einstein’s Lens
Demonstrations...GLOYD: Gravitational Lensing on Your Desktophttp://www.stanford.edu/~mturk/gloyd/
- Matt Turk, KIPAC/Stanford
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Einstein’s Lens
Demonstrations...
A Wine Glass:
Let’s try this one...
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Einstein’s Lens
1919 Eclipse: National Maritime Museum, Greenwich
Q2237+0305: J. Rhoads, S. Malhotra, I. Dell'Antonio (NOAO) / WIYN / NOAO / NSF
Identical quasars: STScI (George Rhee)
Quasar diagram: NASA / CXC / M. Weiss
Lens shape diagrams: European Space Agency
Einstein ring: STScI, Imperial College (Steve Warren, Simon Dye)
Einstein Cross: ESA and NASA
Abell 1689: N. Benitez (JHU), et al, and the ACS Science Team, ESA, NASA
Gravitational lensing: NASA, ESA, J. Blakeslee and H. Ford (JHU))
Arcs: ESA, NASA, J.-P. Kneib (Caltech / Obs. Midi-Pyrénées) and R. Ellis (Caltech)
Cloverleaf quasar: NASA / CXC / Penn State / G. Chartas, et al
Lensing animation: Frank Summers (STScI)
Bullet Cluster: NASA STScI/Chandra and Magellan, U of AZ
Microlensing: NASA and Dave Bennett (University of Notre Dame, Indiana)
CL2244-04: European Southern Observatory
Planet search: OGLE Collaboration
Full circle: NASA, ESA, A. Bolton (Harvard-Smithsonian CfA) and the SLACS Team
ALBERT EINSTEIN and related rights ™/© of The Hebrew University of Jerusalem, used under license. Represented by the Roger Richman Agency, Inc., www.albert-einstein.net
http://www.universeforum.org/einstein/
Image Credits