[HN Gopher] Sun's magnetic arches may be just an optical illusio...
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       Sun's magnetic arches may be just an optical illusion, research
       suggests
        
       Author : samweb3
       Score  : 36 points
       Date   : 2022-06-29 20:32 UTC (2 hours ago)
        
 (HTM) web link (www.spacechatter.com)
 (TXT) w3m dump (www.spacechatter.com)
        
       | codr7 wrote:
       | Getting magnetism out of that equation would be oh so very
       | convenient for science, no one likes to reinvent themselves.
       | 
       | Shit, let's just call anything we can't explain using the
       | existing framework illusions, as if that line of reasoning leads
       | anywhere worth going.
        
         | ketralnis wrote:
         | The research[0] is more than just "I dunno man, what if it's
         | just like not real or something?"
         | 
         | 0: https://iopscience.iop.org/article/10.3847/1538-4357/ac3df9
        
       | daveloyall wrote:
       | In case anyone reading this works for Fortinet.. FYI, this domain
       | is currently categorized as 'pornography'.
        
       | dr_orpheus wrote:
       | I'm surprised by this discovery too, I would have thought we
       | would have been able to observe something like this with the
       | STEREO spacecraft [0] which are pair of identical spacecraft that
       | are imaging the sun at different angles.
       | 
       | [0] https://en.wikipedia.org/wiki/STEREO
        
         | djbeadle wrote:
         | I had never heard of this and took a look at the Wikipedia page
         | you linked.
         | 
         | > Contact with STEREO-B was lost in 2014 after entering an
         | uncontrolled spin preventing its solar panels from generating
         | enough power, but STEREO-A is still operational.
        
         | data-ottawa wrote:
         | The linked paper at the bottom of the article might shed more
         | light on this for you:
         | 
         | "We demonstrate how apparently isolated loops could deceive
         | observers, even when observations from multiple viewing angles
         | are available"
         | 
         | I haven't read it all yet and this topic is totally out of my
         | wheelhouse, but it seems quite interesting.
         | 
         | https://iopscience.iop.org/article/10.3847/1538-4357/ac3df9
        
       | NegativeLatency wrote:
       | > sometimes be optical illusions "created by folds or wrinkles in
       | much larger 'sheets' of solar material that the authors call
       | coronal veils."
       | 
       | So we're seeing a sheet of paper from the side?
        
         | kcexn wrote:
         | More like if you take some cellophane and crinkle it up. The
         | thicker parts block more light than the thinner parts, so if
         | you look at the shadows, you'll see structures that aren't
         | representative of the shape of the material.
        
         | evrydayhustling wrote:
         | I, for one, find the veil model just as cool and spectacular as
         | the loops. I object to calling it "just an optical illusion"!
        
           | simonh wrote:
           | They're not calling the veil model an optical illusion,
           | they're just saying that the loop like structures we think we
           | see are deceptively limited side effects of some aspects of
           | the veil structures. It's the image that's the illusion,
           | because it misleads us about the reality.
        
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       (page generated 2022-06-29 23:00 UTC)