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Creation of the Universe, Einstein Rings, and Gravitational Lensing by fierogtowner
Started on: 04-07-2006 10:33 AM
Replies: 4
Last post by: TK on 04-07-2006 10:10 PM
fierogtowner
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Report this Post04-07-2006 10:33 AM Click Here to See the Profile for fierogtownerSend a Private Message to fierogtownerDirect Link to This Post
Article: http://www.ivanhoe.com/science/story/2006/04/128a.html

But easier to understand: http://www.ivanhoe.com/science/story/2006/04/128si.html

Now Discuss...

[This message has been edited by fierogtowner (edited 04-07-2006).]

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maryjane
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Report this Post04-07-2006 12:41 PM Click Here to See the Profile for maryjaneSend a Private Message to maryjaneDirect Link to This Post
 
quote
Originally posted by fierogtowner:

Article: http://www.ivanhoe.com/science/story/2006/04/128a.html

But easier to understand: http://www.ivanhoe.com/science/story/2006/04/128si.html

Now Discuss...

They can find all that stuff and can't find a few million lost socks. Interesting.

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Scott-Wa
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Report this Post04-07-2006 03:53 PM Click Here to See the Profile for Scott-WaClick Here to visit Scott-Wa's HomePageClick Here to Email Scott-WaSend a Private Message to Scott-WaDirect Link to This Post
http://www.iam.ubc.ca/~newbury/lenses/lenses.html
More in depth demonstrations and theory. They used gravitational lensing to take images of some of the first galaxies formed, I believe using an extremely dense galaxy as the lens, they achieved resolution something like 40x further than could normally be observed.

http://csep10.phys.utk.edu/astr162/lect/galaxies/lensing.html

Want to see some examples? http://cfa-www.harvard.edu/castles/

This technique of super dense objects warping light is also how they are detecting exo-planets. Microlensing instead of quasar or galactic lensing.

http://bulge.princeton.edu/~ogle/

I was just reading about how two amateur astronomers assisted in finding this one http://arxiv.org/abs/astro-ph/0505451 chart of it here http://www.arxiv.org/astro-ph/0505451. Grant Christie uses a 14"Celestron telescope in Aukland and Jennie McCormick used her 10" Meade LX200, a popular unit with astronomy buffs. Her SBIG ST-7E CCD camera isn't quite as common although it's down to about $5000 (I think it was about $12K when it became available). Her observations were from her farm in Pakuranga. She contributes an enormous amount of time to the Center for Backyard Astrophysics. http://cba.phys.columbia.edu/

Here is their story with a photo... she isn't geeky looking at all http://www.stardome.org.nz/news/microlense.html

It's amazing that with digital cameras and some software amateurs in their backyards are now doing research the Hubble wasn't capable of when it first went up. The amount of knowledge gained is accelerating at a tremendous rate with theories being proven or disproven at an incredible rate.
What an incredibly geeky topic :-)

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Toddster
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Report this Post04-07-2006 03:58 PM Click Here to See the Profile for ToddsterClick Here to Email ToddsterSend a Private Message to ToddsterDirect Link to This Post
I think God just lost his contact lens.

Discuss...


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TK
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Report this Post04-07-2006 10:10 PM Click Here to See the Profile for TKSend a Private Message to TKDirect Link to This Post
 
quote
Originally posted by maryjane:


They can find all that stuff and can't find a few million lost socks. Interesting.


Ren and Stimpy did.

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