merger?
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by brethold28
just for future reference am i looking at a merger here?
Posted
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by Budgieye moderator
Interesting!, the other spot is at the same distance, so may be merger, but I don't actually see much interaction, aside from one long straight arm. Without the spectra, I would have thought the pea was far away.
#UGC 05632 UGC05632
http://skyserver.sdss.org/dr8/en/tools/explore/obj.asp?id=1237667782822985877
spiral galaxy at z=0.041
http://skyserver.sdss.org/dr8/en/tools/explore/obj.asp?id=1237667782822985877
Oiii (pea) galaxy at z=0.041
http://skyserver.sdss.org/dr8/en/tools/explore/obj.asp?id=1237667782822985878
Posted
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by dj_tjitso
Well, the galaxy does appear a bit disturbed, shaped like an egg with the white dot in de smaller part of the egg.
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by brethold28 in response to Budgieye's comment.
thank you for taking the time to respond i was wondering if thats what it was.. i also found another odd ball the other day posted it on twitter but here is a link to the disscussion page http://talk.galaxyzoo.org/#/subjects/AGZ0007vuc think you can help on this one
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by Budgieye moderator
I think it is a star in our galaxy just getting in the way. It doesn't look bright enough to be a supernova. There seems to be no colour so I don't think it is anything to do with getting hit by relativistic jets from the nucleus. It might be the beginning of a bar just starting to form.
z=0.031
http://skyserver.sdss.org/dr8/en/tools/explore/obj.asp?id=1237665102216691879
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by bernoullilemniscate in response to Budgieye's comment.
I used the DR8 finding tool and for the main galaxy identified as SDSS J102433.12+200819.0 gave a redshift of z=.041063, and for the object identified as SDSS J102433.85+200808.2 it gives a redshift of z=.040965
Based on these redshifts it would seem that the "green pea" is a foreground object although I am not sure how much error is in the redshiftsPosted
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by Budgieye moderator
Both of these redshifts are accurate to many decimal places, because they have emission lines which allows precise measurement. The error value is listed on the redshift chart.
You can calculate how far apart these galaxies are.
How far away is the galaxy? http://www.wolframalpha.com/input/?i=redshift+z%3D0.03&a=FSelect_**LookbackTimeFromRedshift-- (click on cosmological redshift)
Forum: Friday 8th January, 2010. Two galaxies, the same size? by Budgieye http://www.galaxyzooforum.org/index.php?topic=277034.msg416504#msg416504 measure the size and distance of two galaxies
Good luck with your calculations!
http://skyserver.sdss.org/dr8/en/tools/explore/obj.asp?id=1237667782822985877
spiral galaxy at z=0.04106 error 0.00001
http://skyserver.sdss.org/dr8/en/tools/explore/obj.asp?id=1237667782822985877
Oiii (pea) galaxy at z=0.04097 error 0.00001
http://skyserver.sdss.org/dr8/en/tools/explore/obj.asp?id=1237667782822985878
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by brethold28 in response to Budgieye's comment.
I will leave the math to much smarter people then myself but that was helpful thank you budgie
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by Budgieye moderator
You are welcome. 😃
Posted