Dustline
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by
bluemagi
This one has a dustline and a weird intense bar, I think. I haven't seen a dustline with an OIII. Have I got this right? I'm sorry for all the questions but I'm stumped at times. So thank to all of you!
Posted
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by
Budgieye
moderator
I'm not sure about the dustline. I've tilted the screen in all directions, pressed Ctrl+ until it is huge, but can't decide.
In DECals Browser there dust line seems to be a long line off to right and left, so maybe an artifact.
Very strong oxygen lines, aren't they.
Posted
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by
Budgieye
moderator
The starforming areas are easier to see in DECaLS dr2. I suspect they are the same image, just treated differently.The long reddish-brown string still runs across the page. I don't know what this artifact is. There are so many artifacts that, after a while, I don't see them any more.
dr1
dr2
dr1
dr2http://b.imagine.legacysurvey.org/decals-dr1j/1/14/10082/6803.jpg
http://d.imagine.legacysurvey.org/decals-dr1j/1/15/20165/13606.jpg
dr2 cutout service in jpeg http://legacysurvey.org/viewer/jpeg-cutout-decals-dr2/?ra=138.4529&dec=29.1718&size=512&pixscale=0.27&bands=grz
dr2 cutout
Posted
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by
bluemagi
It is the shape of a circle on the dr2 cutout so I am starting to agree it is some kind of artifact. I kept thinking about it because as far as I know these galaxies are more made of gases and have no metal elements. I always thought that you needed some metals to form a dustlane. Maybe I am wrong because I am not an expert just a learner. Could this actually be in the foreground and not have anything to do with the galaxy. Something might have blown up and this is what is left? Just a thought. Thanks.
Posted
