Author Topic: Hoag Type galaxies and Collisional rings  (Read 67104 times)

Lovethetropics

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Re: Hoag Types. Collisional rings?
« Reply #15 on: February 20, 2009, 06:05:42 pm »
Tom, I have a question...does the ring have to be detached from the core to be a Hoag type?

I would say yes. It should be as close to Hoags Object as possible. :) ;)

Oh ok, thanks!  ;D ;D ;D

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TangyFM

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Re: Hoag Type galaxies. Collisional rings?
« Reply #16 on: February 20, 2009, 09:26:32 pm »
Hiya,

Ive just been advised to repost this one in herte as a possible. Very new to the zoo and enjoying myself so far :)



Item 587731186735841452

Cheers
David

zookeeperKevin

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Re: Hoag Type galaxies. Collisional rings?
« Reply #17 on: February 20, 2009, 09:27:30 pm »
One of our goals with Zoo 2 is to really determine how many such objects there are, collect them and then analyse them to understand their origin better.

Lovethetropics

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Geoff

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Re: Hoag Type galaxies. Collisional rings?
« Reply #19 on: February 21, 2009, 02:00:13 pm »
The following rings were extracted from the Ring Galaxy thread when I was drafting my Ring OOTD. These may be collisional rings so I'm posting them here. More will follow as I get the time.



587741531707277439
First posted by Gruntfutuck 27 July 2007.





~


587726015073353815
First posted by altymczuk 26 July 2007.



587739114701193327
First posted by lima 27 July 2007.





~


587739406787412091
First posted by Antirius 27 July 2007.

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Thomas J

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Re: Hoag Type galaxies. Collisional rings?
« Reply #20 on: February 21, 2009, 02:08:12 pm »
Great, Geoff, I think that the fourth one is a definite Hoag type galaxy.
I am very interested in the Universe- I am specialising in the Universe and all that surrounds it.....            Peter Cook.


1000GGG

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Re: Hoag Type galaxies. Collisional rings?
« Reply #21 on: February 21, 2009, 06:28:09 pm »
Was the Ring caused by one or each of the  z 0.043 Galaxies?
Posted many times.
http://cas.sdss.org/astro/en/tools/explore/obj.asp?id=587732483270049796                   


« Last Edit: February 23, 2009, 04:04:57 pm by 1000GGG »

Bubbles_Cyndie

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Re: Hoag Type galaxies. Collisional rings?
« Reply #22 on: February 21, 2009, 06:32:56 pm »
Hi!
This topic is very interesting! I've found two galaxies, are they Hoag type galaxies?

http://cas.sdss.org/astro/en/tools/explore/obj.asp?id=588017947749580943


http://cas.sdss.org/astro/en/tools/explore/obj.asp?id=587732772656775320


thanks!  :)
Sorry, my english is not perfect... ^^'

Tinbeard

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Re: Hoag Type galaxies. Collisional rings?
« Reply #23 on: February 21, 2009, 07:52:33 pm »

Could this be one ?




sreiok

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Re: Hoag Type galaxies. Collisional rings?
« Reply #24 on: February 21, 2009, 08:33:08 pm »


SDSS 587739720300101667

Thomas J

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Re: Hoag Type galaxies. Collisional rings?
« Reply #25 on: February 21, 2009, 09:26:19 pm »
Hi!
This topic is very interesting! I've found two galaxies, are they Hoag type galaxies?

http://cas.sdss.org/astro/en/tools/explore/obj.asp?id=588017947749580943


http://cas.sdss.org/astro/en/tools/explore/obj.asp?id=587732772656775320


thanks!  :)

Hi, Cyndie. I would say that the first one looks very much like a Hoag type, with a bit of left over disturbance. The second one is definitely a ring type but I would say this is a ringed galaxy. Ringed galaxies a believed to form when 'resonance' generated by the motion of a barred nucleus causes the spiral arm structure to migrate away into a ring.

Tom
« Last Edit: February 22, 2009, 01:08:47 pm by Thomas J »
I am very interested in the Universe- I am specialising in the Universe and all that surrounds it.....            Peter Cook.


SergeFinder

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SergeFinder

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Lovethetropics

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Re: Hoag Type galaxies. Collisional rings?
« Reply #28 on: February 23, 2009, 12:47:56 am »
http://cas.sdss.org/dr7/en/tools/explore/obj.asp?id=588848901531303950

Found this one, Tommy.  I hope it's one of yours  ;D



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Cat

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Re: Hoag Type galaxies. Collisional rings?
« Reply #29 on: February 23, 2009, 01:30:16 am »
Your wish is my command Tom...

http://cas.sdss.org/dr7/en/tools/quicklook/quickobj.asp?id=587725473344979105



Glad to be of service!  ;D ;D
xx
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