arcsinh
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When looking at this galaxy, if you look at it through the available spectrum with arcsinh, it appears that the center is much more active than suggested. Also 3 red stars, possibly supernova?
Posted
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by
ElisabethB
moderator
Hi entropytheory88 and welcome to the Zoo
The three red dots are foreground stars from our galaxy ! 😄
Happy hunting !
Posted
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by
JeanTate
in response to entropytheory88's comment.
Welcome to Galaxy Zoo from me too, entropytheory88 (love the name)!
This galaxy - SDSS J232542.91+050435.4 - has no SDSS spectrum; perhaps you are referring to the Arcsinh transform in the "View raw data in different wavelengths" tool? I can see several patterns, using the different transforms and bands (from u to z), but not "the center is much more active than suggested" with Arcsinh (the nucleus does seem much brighter with the Linear and Power transforms, but that's just what you'd expect). Would you please say a bit more about this?
I think at least one of the red 'stars' may actually be a background galaxy; for example, SDSS J232542.63+050449.9 looks too fuzzy to be a star, to me:
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