Galaxy Zoo Talk

Subject: AGZ000cw5e

Subject AGZ000cw5e Full subject data (JSON)

Comments

  • TenthEagle by TenthEagle

    WTF ????

    Posted

  • CeciliaB by CeciliaB

    NGC 7681 is a lenticular, assymetric galaxy with a star superimposed.

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  • Ghost_Sheep_SWR by Ghost_Sheep_SWR

    That amazes me, would have bet on double nucleus 100%!

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  • Ghost_Sheep_SWR by Ghost_Sheep_SWR

    Do you mean the star at 10 o'clock? #NGC 7681 is a merger / double nucleus galaxy as suspected.

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  • Ghost_Sheep_SWR by Ghost_Sheep_SWR

    See page 3: https://arxiv.org/pdf/1609.00391.pdf

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  • Ghost_Sheep_SWR by Ghost_Sheep_SWR

    "A closer inspection, however, shows that this system consists of a close pair of bulges of roughly equal luminosity separated by 3.6′′"

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  • zoob1172 by zoob1172

    "We include the kinematic maps and properties of NGC 7681 in Figure D11 for completeness but otherwise exclude it from this paper. "

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  • Ghost_Sheep_SWR by Ghost_Sheep_SWR

    Lol you keep on reposting your comments to the top of the comment sections for no obvious reason. How quaint.

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  • CeciliaB by CeciliaB

    I thought it looked like a double nucleus too, but in NED note 1, it said: 'Stellar companion superimposed', which made me think...

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  • CeciliaB by CeciliaB

    ... that the companion was a star. I haven't come across the expression 'stellar companion' before.

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  • Ghost_Sheep_SWR by Ghost_Sheep_SWR

    Me neither. Confusing name but might be another nearby galaxy as it seems they're a pair. Nice new word to spread confusion though :p

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  • CeciliaB by CeciliaB

    Strangely enough SIMBAD calls one of the nuclei a star. Maybe that's why whoever wrote note 1 in NED got it all wrong 😕

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  • Ghost_Sheep_SWR by Ghost_Sheep_SWR

    Seems this one is riddled with confusion, also misidentified by other catalogs so yes might be a reason.

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  • Ghost_Sheep_SWR by Ghost_Sheep_SWR

    Strangest of all is apart from that one commentary in paper there is no ref at all for double nucleus / merger. Sure looks like it to me

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  • CeciliaB by CeciliaB

    Yes, funny that scientists haven't agreed about something which looks so obvious to our eyes.

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  • Ghost_Sheep_SWR by Ghost_Sheep_SWR

    Obvious yes, but then again we're trained classifiers, scientists are no match for us 😉 I'll probably see if I can get clear images later.

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  • Budgieye by Budgieye moderator

    B) 😃

    Posted

  • Ghost_Sheep_SWR by Ghost_Sheep_SWR

    Hmm can't really get a better image than above. But the top one is much brighter in all SDSS bands than lower one and very round like star.

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  • Ghost_Sheep_SWR by Ghost_Sheep_SWR

    Lower one is fainter in comparison but more elongated like a bulge / nucleus. Above image is probably distorting the actual shapes a bit...

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  • Budgieye by Budgieye moderator

    #NGC 7681 NGC7681

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  • ine by ine

    #UGC 12629

    Posted