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Old 23-11-2014, 02:06 PM
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alpal
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Join Date: Jan 2012
Location: Melbourne
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Steven,
Quote:
Allan there is absolutely no doubt the extended halo is real.
It's been shown in Mike's negative image (with the mysterious S-bend), Octane's and now Fred's.
It shows up in professional images in radar, X-ray and FUV/NUV as shown in the attachment.
Since the halo emits synchrotron radiation in NUV and is a continuous rather than an emission spectrum, the radiation spills over into the visible range.
ESO's role in this is to play the devil's advocate, they know the halo is there, but they can't make a judgement call until they examine an image where the background noise has not been altered in any way by processing.
Hi Steven,
you seem to be very certain.

Can you explain why - in the Chilean picture here:
http://www.chart32.de/images/objects...NGC253-80P.jpg

there are very faint galaxies showing up that are not in your image yet
you have a halo showing instead?
Surely if the Chilean telescope picked up such faint galaxies it would pick up the halo too?

cheers
Allan
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