Grav lens candidate, arcs SDSS J122718.10+585322.8 and SDSS J122718.45+585321.2
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by JeanTate
The galaxy perhaps doing the lensing is hidden behind/within the glare of the foreground star (SDSS J122717.77+585317.8); here are the apparent arcs (z_ph 0.49 GALAXY SDSS J122718.10+585322.8 and z_ph ?? GALAXY SDSS J122718.45+585321.2):
This set of objects is apparently within an overlapping pair of galaxy clusters, one at z~0.48 (the reddish-orange blobs), the other z~0.37 (the greenish blobs, inc. a possible Green Pea or two); though that's not so obvious in this zoomed-out view:
First posted (as far as I know) in the RGZ Talk thread ARG00006dn - very interesting field, optically; including gravitational lens?
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by Budgieye moderator
Hi Jean, your images didn't come up for me, SDSS maybe down.
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by JeanTate in response to Budgieye's comment.
Weird; they're there for me, now.
Here's the DR7 Explore version:
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by Budgieye moderator
Yes, images are back up. Is there something in the radio data that alerted you? I think it is a star, but maybe something is happening there.
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by JeanTate in response to Budgieye's comment.
Is there something in the radio data that alerted you?
No; there are radio sources in the more distant cluster (and perhaps the closer one too), but this gravlens candidate is not.
I think it is a star, but maybe something is happening there.
There's definitely an optical point-source; however, there's also a red blob (to the E), which makes me wonder if this is a chance alignment, possibly with a massive galaxy (at z ~0.5) acting as lens, but it's 'hidden' behind the star ...
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by Dolorous_Edd
Frankly, it doesn't look like a grav lens
however, there's also a red blob (to the E)
IMHO a curvature of the arc doesn't align with the galaxy and
but it's 'hidden' behind the star ...
seems like a too much quessing
and color .. usually the are bluish
I am not an expert .. i don't proclame anything
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by sat666leg
just looks like gas and dust to me.. probably 2 distant galaxies merging..
i thought grav lens would create a symetric image if lensed ie. you should get the same image on the opposite side of the galaxy...? but i know nothinggggg.Posted