Galaxies Away (APOD 8 Feb 2007)

Comments and questions about the APOD on the main view screen.
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dekdekd
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Galaxies Away (APOD 8 Feb 2007)

Post by dekdekd » Thu Feb 08, 2007 7:23 pm

I understand the principle of gravitational lensing. I can't see any gravity lens arcs in this image. Would APOD like to re-publish this image some other day and indicate the arcs with little arrows? This would help me. DEK

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BMAONE23
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Post by BMAONE23 » Thu Feb 08, 2007 8:29 pm

Even in this large image,
http://imgsrc.hubblesite.org/hu/db/2007 ... /print.jpg
I too do not see any lensing effects.

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Qev
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Post by Qev » Thu Feb 08, 2007 8:55 pm

I believe the gravitational lensing is washed out by the glare of the large elliptical in that image. If you follow the link from the APOD page, you'll come to a page with a processed version of the image where the lensing is more visible.
Don't just stand there, get that other dog!

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BMAONE23
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Post by BMAONE23 » Thu Feb 08, 2007 10:20 pm

You're right QEV. It is definately washed out from glare

harry
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Post by harry » Fri Feb 09, 2007 7:07 am

Hello All

The image is only 450 million years away.

If you want to see gravitational lensing see this one

Galaxy Cluster Lenses Farthest Known Galaxy
http://antwrp.gsfc.nasa.gov/apod/ap040217.html

Galaxy Cluster Abell 1689 Warps Space
http://antwrp.gsfc.nasa.gov/apod/ap040627.html


Giant Cluster Bends, Breaks Galaxy Images
http://antwrp.gsfc.nasa.gov/apod/ap960424.html

At the same time, the question is what does the bending of the light. There are some interesting view on this or is it an optical error.
Harry : Smile and live another day.

astro_uk
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Post by astro_uk » Fri Feb 09, 2007 12:11 pm

The one you want is this one http://imgsrc.hubblesite.org/hu/db/2007 ... ge_web.jpg.

Its the same image but has the scaling changed so you can see the arcs more clearly in the inset. I work with the guys that made it, and it is pretty cool.

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