Author Topic: Blue Caterpillars: What are they?  (Read 214628 times)

PeterD

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Re: Blue Caterpillars: What are they?
« Reply #30 on: May 08, 2012, 06:18:03 pm »
..or ones like this:



ID: AHZ2001r79 z = 0.717

Is this three objects accidentally aligned or is there a relation between them? and would anyone care to offer an explanation of why the blue object, is er blue, and the others aren't?

BTW and FWIW it's an IR image (814nm) with a magnitude of 22, despite the image quality


djj

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Re: Blue Caterpillars: What are they?
« Reply #31 on: May 08, 2012, 08:10:39 pm »

djj

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Re: Blue Caterpillars: What are they?
« Reply #32 on: May 08, 2012, 08:12:59 pm »

20162766
http://www.galaxyzoo.org/examine/AHZ2001s3n
z = 1.58 or (NED) 1.81
« Last Edit: May 08, 2012, 08:18:33 pm by djj »

djj

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Re: Blue Caterpillars: What are they?
« Reply #33 on: May 09, 2012, 10:00:22 pm »

50003433
http://www.galaxyzoo.org/examine/AHZ30000ik
NED: z = 1.085280 +/- 0.000330

joinpep

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Re: Blue Caterpillars: What are they?
« Reply #34 on: May 09, 2012, 10:13:54 pm »
d,

Very confusing.
NED has a star in the mix. Can you see it?

12h37m31.87402s, +62d17m23.4313s (NED * 588011123577651628)


AHZ30000ik
Right ascension: 189.3827° Declination: 62.3116°

Perhaps the SDSS and GOODS prefixes were confused?
And we see just how small z1 is in a NED field.
« Last Edit: May 10, 2012, 12:15:10 am by joinpep »

djj

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Re: Blue Caterpillars: What are they?
« Reply #35 on: May 09, 2012, 10:50:34 pm »
Presumably that's the VisS (Visual Source), but no, I can't distinguish it.

djj

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Re: Blue Caterpillars: What are they?
« Reply #36 on: May 10, 2012, 08:10:01 pm »

20190381
http://www.galaxyzoo.org/examine/AHZ2001ko1
This caterpillar is curled up :D.
Redshift: 1.479000 or (NED) 1.520000

djj

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Re: Blue Caterpillars: What are they?
« Reply #37 on: May 11, 2012, 09:26:40 pm »

20065702
http://www.galaxyzoo.org/examine/AHZ2000jjy
z = 0.859000 or (NED) 0.910000

PeterD

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Re: Blue Caterpillars: What are they?
« Reply #38 on: May 11, 2012, 09:52:11 pm »
there have to be Hundreds more Loitering if you have the Images post them! I Exhausted my Hubble ZOO i have no idea if any are in ZOO1 OR ZOO2

I found some back in ZOO2

Peter

PeterD

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Re: Blue Caterpillars: What are they?
« Reply #39 on: May 11, 2012, 10:01:47 pm »

50003433
http://www.galaxyzoo.org/examine/AHZ30000ik
NED: z = 1.085280 +/- 0.000330

Thanks djj. Just like a pair of tadpoles - or yin and yang I guess.

Adding NED etc redshifts is a good idea. There is always uncertainty about photo-z's but in most cases we have little better to go on. Having two estimates always helps.

PeterD

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Re: Blue Caterpillars: What are they?
« Reply #40 on: May 11, 2012, 10:10:17 pm »
It's interesting that the z's that djj quotes agree to within 0.05. I presume that the NED ones are mostly photo too. Does anyone know for certain? or if not what the mix is (at these sorts of distances)

P

listersmoonboots

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Re: Blue Caterpillars: What are they?
« Reply #41 on: May 14, 2012, 01:00:19 am »
I wan`t sure how to classify this one.
AHZ2001bpm
« Last Edit: May 14, 2012, 02:09:50 am by listersmoonboots »

listersmoonboots

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Re: Blue Caterpillars: What are they?
« Reply #42 on: May 14, 2012, 01:07:47 am »

This reminds me of Yosemite Sam. AHZ10004fa
« Last Edit: May 14, 2012, 02:14:28 am by listersmoonboots »

listersmoonboots

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Re: Blue Caterpillars: What are they?
« Reply #43 on: May 14, 2012, 01:15:54 am »

Not quite a caterpillar but they form a chain. :) AHZ2001qe4
« Last Edit: May 14, 2012, 02:16:52 am by listersmoonboots »

Hanny

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Re: Blue Caterpillars: What are they?
« Reply #44 on: May 14, 2012, 02:59:32 pm »
Thought you lot might want to see this. ::) ;D ;)