Author Topic: Mergers or flybys with incredibly long tails  (Read 17864 times)

Alice

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Mergers or flybys with incredibly long tails
« on: September 24, 2011, 10:38:23 pm »
The idea came about for this topic as a result of Bruno's amazing "Mystery violin clef" galaxy:

1237678620102688907

You can read that Object of the Day here. In it, we thought it might be interesting to collect more galaxies with especially long tails like that. Kevin urged us not to until we know whether or not some good science is likely to come out of it . . . but of course, a) we want to even if it doesn't :D (at least I do), and b) what if we think of something now and by the time it's clear whether good science will come or not, we've forgotten? :o

Other examples that immediately spring to mind are the following:


also known as the Rose;


and another rose!

(Both the above from the Galactic Garden.)

and look what c_cld found - although I'm not sure if this is quite the same thing.
UGC 4703 -- Pair of Galaxies with bridge
1237660412111618081 SDSS J085829.75+061916.7 / z(~) 0.01184 in bridge's left end
UGC 4703 A 1237660412111618084 SDSS J085825.01+062006.3  in bridge's right end
neighbor red G edge-on 1237660412111618083



Have you seen any this long? Not ordinary tidal tails, please, but only incredibly long ones.

NGC3314

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Re: Mergers or flybys with incredibly long tails
« Reply #1 on: September 25, 2011, 12:37:51 am »
Stand by, I had another few from older catalogs. Not to mention the one (NGC 1568) posted by c_cld (IIRC)  from a 1985 paper written by, err, me.

Lovethetropics

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Re: Mergers or flybys with incredibly long tails
« Reply #2 on: September 25, 2011, 02:27:57 am »
A new challenge! WEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE!!!!!!!!!!!!!!  Thank you dear Alice!  :-* :-* :-*

 *and find lots of asteroids  ;D

Bruno

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Re: Mergers or flybys with incredibly long tails
« Reply #3 on: September 25, 2011, 09:04:51 am »
Thanks dear Alice: let's go... 8)
Ciao
Bruno

Cadunt lilia, surgunt rosae
Stellae in caelo sunt radiosae

zutopian

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Re: Mergers or flybys with incredibly long tails
« Reply #4 on: September 25, 2011, 01:02:20 pm »
I copied Randy's post, which he had done in the lens thread:

Here is a large arc or tidal tail(s).
Redshift: 0.349000
   
http://www.galaxyzoo.org/examine/AHZ2000yh7
http://cas.sdss.org/dr6/en/tools/explore/obj.asp?id=587727944034091816

Alice

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Re: Mergers or flybys with incredibly long tails
« Reply #5 on: September 25, 2011, 07:40:19 pm »
Ooooh, I hadn't seen that one. Fantastic one, Zutopian and Randy.

Bill, I can't wait for your collection! Is this the one you wrote a paper about? 8)

ElisabethB

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Re: Mergers or flybys with incredibly long tails
« Reply #6 on: September 25, 2011, 08:09:14 pm »
Hey Alice et al !  ;D
If you do a search on the forum for 'long arms' you get quite a number of hits. Some of them would feel really at home here !  ;D

pluk

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Re: Mergers or flybys with incredibly long tails
« Reply #7 on: September 25, 2011, 08:49:49 pm »
UGC 4703 -- Pair of Galaxies with bridge
1237660412111618081 SDSS J085829.75+061916.7 / z(~) 0.01184 in bridge's left end
UGC 4703 A 1237660412111618084 SDSS J085825.01+062006.3  in bridge's right end
neighbor red G edge-on 1237660412111618083



Know what this reminds me of? ;D
We tend to overestimate the effect of a technology in the short run and underestimate the effect in the long run. - Roy Amara, engineer, futurist (b. 1925)

ElisabethB

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Re: Mergers or flybys with incredibly long tails
« Reply #8 on: September 25, 2011, 09:20:22 pm »
Please, the suspense is killing me !  ;) ;D

RandyC

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Re: Mergers or flybys with incredibly long tails
« Reply #9 on: September 25, 2011, 10:22:30 pm »
Redshift: 0.594000  (DR6 PHOT: 0.546447, DR7 PHOT: 0.436677, DR8 PHOT: 0.612667)
COSMOS and SDSS Surveys
 
http://www.galaxyzoo.org/examine/AHZ2001424
http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237651754534371995
Randy

pluk

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Re: Mergers or flybys with incredibly long tails
« Reply #10 on: September 26, 2011, 08:31:24 am »
We tend to overestimate the effect of a technology in the short run and underestimate the effect in the long run. - Roy Amara, engineer, futurist (b. 1925)

AlexandredOr

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Re: Mergers or flybys with incredibly long tails
« Reply #11 on: September 26, 2011, 09:28:10 am »

Baby star opening its eyes on the Universe.

zutopian

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Re: Mergers or flybys with incredibly long tails
« Reply #12 on: September 26, 2011, 11:30:17 am »
Ooooh, I hadn't seen that one. Fantastic one, Zutopian and Randy.

Below there is another fantastic one, which was posted by... Guess by whom? ;D
Hint: The thread, which s/he had started on July 27, 2007, 09:15:43 PM just contains the image below.
S/he had remarked "sorry, can't find ref, this one's old".
I found out the ref, which is http://cas.sdss.org/dr7/en/tools/explore/obj.asp?id=587739811037512127 


« Last Edit: September 26, 2011, 12:50:42 pm by zutopian »

Alice

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Re: Mergers or flybys with incredibly long tails
« Reply #13 on: September 26, 2011, 11:58:16 am »
This is fantastic. ;D And hahahahaha Pluk :D

Bruno

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Re: Mergers or flybys with incredibly long tails
« Reply #14 on: September 26, 2011, 01:46:40 pm »
Center  Redshift (z):   0.066763
Top E    Redshift (z):   0.066645

Cose for interaction...no such data available for clef....   >:( 8)
Ciao
Bruno

Cadunt lilia, surgunt rosae
Stellae in caelo sunt radiosae