Author Topic: Current Target  (Read 6387 times)

ElisabethB

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Re: Current Target
« Reply #15 on: August 28, 2010, 10:45:24 pm »
HST Target: NGC 5331
This HST image is a little crowded. The two interacting galaxies each have extended faint tails. Try to match the general shape first, then see if you can extend the length of the tails


echo-lily-mai

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Re: Current Target
« Reply #16 on: August 29, 2010, 05:46:15 pm »
Thanks Els  ;)  :)

August 29, 2010
NGC 5331

Art does not reproduce the visible....  Paul Klee

echo-lily-mai

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Re: Current Target
« Reply #17 on: August 30, 2010, 09:40:53 am »
August 30, 2010
SDSS ID: 587736523764334706
For Arp 274, just focus on the two main spirals. Watch out to make sure the rotation direction is correct on both.



Art does not reproduce the visible....  Paul Klee

echo-lily-mai

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Re: Current Target
« Reply #18 on: November 24, 2010, 09:48:52 am »
November 24, 2010

SDSS ID: 587747120521216156

To mark the one year anniversary of the launch of Merger Zoo we present Arp 146. This ring is tricky. Consider using the color SDSS image in Explore and altering the disk inclination in Enhance.


Art does not reproduce the visible....  Paul Klee

echo-lily-mai

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Re: Current Target
« Reply #19 on: December 26, 2010, 09:22:07 pm »
December 25, 2010

SDSS ID: 588007005230530750

Arp 143, also known as NGC 2444 / 2445, has two very different galaxies. The top, redder galaxy, has a nice spiral arm. The bottom, bluer galaxy looks to be a big mess. Start with the arm on the top galaxy and don't worry too much about the other.


Art does not reproduce the visible....  Paul Klee

echo-lily-mai

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Re: Current Target
« Reply #20 on: February 16, 2011, 03:10:10 pm »
February 14, 2011

SDSS ID: 758877153600208945
 
The hook in the tail on the primary galaxy in Arp 70 can be tricky to match. Try getting any tail on the galaxy first, and then develop the hook.

Art does not reproduce the visible....  Paul Klee

ElisabethB

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Re: Current Target
« Reply #21 on: February 16, 2011, 05:19:29 pm »
oh goody, a new one !  ;D

echo-lily-mai

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Re: Current Target
« Reply #22 on: April 25, 2011, 07:47:45 am »
April 25, 2011

HST Target: Arp 273 

This image of Arp 273 (UGC 1810/1813) was released for HST's 21st birthday. See if you can match the shape of the primary galaxy without destroying the secondary one.

Art does not reproduce the visible....  Paul Klee

echo-lily-mai

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Re: Current Target
« Reply #23 on: May 30, 2011, 05:33:00 pm »
May 30, 2011

SDSS ID: 587739720308818095 
 
The primary in Arp 218 has a tail that looks like it has hooked back on the disk. The secondary appears to be largely unaffected. Be sure to match the rotation direction.


Art does not reproduce the visible....  Paul Klee

echo-lily-mai

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Re: Current Target
« Reply #24 on: July 18, 2011, 08:55:22 am »
July 18, 2011

HST Target: Arp 244
 
The Antennae Galaxies (also known as Arp 244 or NGC 4038/39) have long thin tails. The HST image in the center only covers the two disks. We have included a DSS image to show the rest of the system. Matching the tail length will be difficult.


Art does not reproduce the visible....  Paul Klee

echo-lily-mai

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Re: Current Target
« Reply #25 on: September 13, 2011, 10:02:40 am »
September 13, 2011

SDSS ID: 1237678620102623480
 
This object from SDSS DR8 was a recent object of the day in the Galaxy Zoo forum. Our first attempt at modeling the system focuses on the southern galaxy. Be patient during the Explore phase to find candidates with the proper length and orientation.

(See also OOTD Friday 9th September 2011 Mistery violin clef by Bruno)


Art does not reproduce the visible....  Paul Klee

ElisabethB

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Re: Current Target
« Reply #26 on: September 15, 2011, 05:05:40 pm »
Commenting on a remark echo-lily-mai made on the blog : I can get the lower tail to the left of the little one. My problem is extending the upper arm. In the better sims it's always much shorter than the bottom one.
Note to self : Must try harder !  ;D ;D

echo-lily-mai

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Re: Current Target
« Reply #27 on: September 16, 2011, 08:45:03 pm »
Commenting on a remark echo-lily-mai made on the blog : I can get the lower tail to the left of the little one. My problem is extending the upper arm. In the better sims it's always much shorter than the bottom one.
Note to self : Must try harder !  ;D ;D

So I can do the top and you can do the bottom! Will try some more out later. I must try harder too ;D  :D

http://blogs.zooniverse.org/galaxyzoo/2011/09/13/citizen-science-in-action-the-violin-clef-merger/

Art does not reproduce the visible....  Paul Klee

ElisabethB

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Re: Current Target
« Reply #28 on: September 16, 2011, 09:17:24 pm »
Okay, it's a deal !
Here's an example of my 'problem' ! :D

echo-lily-mai

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Re: Current Target
« Reply #29 on: October 12, 2011, 01:37:04 pm »
nice to see an image posted Els  ;) New one up...

Art does not reproduce the visible....  Paul Klee