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Profile Jayargh
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Message 2304 - Posted: 25 Aug 2007, 7:28:14 UTC
Last modified: 25 Aug 2007, 8:25:17 UTC

Ben,
Is this a tool you might use in your research? Curious because that type of data can take you further back to the "beginning". I see Caltech uses this technique for direct observations and we have our own Boinc project BRaTS@home who is doing theory work on simulations.
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Profile Benjamin Wandelt
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Message 2432 - Posted: 28 Aug 2007, 20:47:15 UTC - in response to Message 2304.  
Last modified: 28 Aug 2007, 20:50:20 UTC

Ben,
Is this a tool you might use in your research? Curious because that type of data can take you further back to the "beginning". I see Caltech uses this technique for direct observations and we have our own Boinc project BRaTS@home who is doing theory work on simulations.


Hi JRenkar -

One way to use gravitational lensing can be used to look at things that would be too faint to see without the gravitational lens. I assume this is what you are referring to since you are talking about going further back to the "beginning."

However, the cosmic microwave background radiation is the oldest light in the Universe. So gravitational lensing does not (and can not) take us back in time any further.

Gravitational lensing does do some interesting things in addition to letting you look deeper into the past: it turns out that we can learn quite a lot about the distribution of matter in between us and a light source by studying the way this light path is distorted through lensing.

Which aspects of graviational lensing are you most interested in?

Being busy with Cosmology@Home, I have not looked at BRaTS@home yet - will check it out when I get a chance.

All the best,

Ben

PS: Thanks for signing on as a forum moderator!
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Message 2434 - Posted: 29 Aug 2007, 2:37:19 UTC
Last modified: 29 Aug 2007, 2:37:44 UTC

Hi Ben,
Thanks for your response...I can see now how this would not fit into your current research.

Actually my greatest interest in gravitational lensing is in the search for extra-solar planets that have the capabilities of supporting life....there was also a Boinc project in planning that has never taken off called PlanetQuest where this may have been one of thier tools. The web page for that project is stagnant and I believe they were looking for funding.

I am very happy to help in any way I can and am honored to be a moderator for C@H!
Thanks Again,
Jeff
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Message 2435 - Posted: 29 Aug 2007, 4:13:41 UTC - in response to Message 2434.  

....there was also a Boinc project in planning that has never taken off called PlanetQuest where this may have been one of thier tools.

PQ would use the photometric transit method.
me@rescam.org
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Forums : Cosmology and Astronomy : Gravitational Lensing