the filaments of the cosmic web spin!
- notFritzArgelander
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the filaments of the cosmic web spin!
https://phys.org/news/2021-06-largest-u ... ation.html
There are ancient threads here(?) and lost in the old sod about the correlation of galaxy orientations within filaments. That is then likely related to this observation.
There are ancient threads here(?) and lost in the old sod about the correlation of galaxy orientations within filaments. That is then likely related to this observation.
Scopes: Refs: Orion ST80, SV 80EDA f7, TS 102ED f11 Newts: AWB 130mm, f5, Z12 f5; Cats: VMC110L, Intes MK66,VMC200L f9.75 EPs: KK Fujiyama Orthoscopics, 2x Vixen NPLs (40-6mm) and BCOs, Baader Mark IV zooms, TV Panoptics, Delos, Plossl 32-8mm. Mixed brand Masuyama/Astroplans Binoculars: Nikon Aculon 10x50, Celestron 15x70, Baader Maxbright. Mounts: Star Seeker IV, Vixen Porta II, Celestron CG5
- notFritzArgelander
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Re: the filaments of the cosmic web spin!
I have a thing about spin and rotations so I hope you'll find some additional material on this (to me) fascinating result.
The key pin to terrestrial physics is that the sense of this is that the filaments of the cosmic web can be interpreted as vortex lines.
Here is what a vortex line is....
https://en.wikipedia.org/wiki/Vortex
Likely the filaments are irrotational vortex lines. (Note there is no contradiction between spinning and being an irrotational vortex. See the diagram on irrotational vortices for details.) https://en.wikipedia.org/wiki/Vortex
Here's a neat video from PhysicsGirl on vortices. https://fyfluiddynamics.com/2014/12/vor ... ctures-in/
So cool!
The key pin to terrestrial physics is that the sense of this is that the filaments of the cosmic web can be interpreted as vortex lines.
Here is what a vortex line is....
https://en.wikipedia.org/wiki/Vortex
Likely the filaments are irrotational vortex lines. (Note there is no contradiction between spinning and being an irrotational vortex. See the diagram on irrotational vortices for details.) https://en.wikipedia.org/wiki/Vortex
Here's a neat video from PhysicsGirl on vortices. https://fyfluiddynamics.com/2014/12/vor ... ctures-in/
So cool!
Scopes: Refs: Orion ST80, SV 80EDA f7, TS 102ED f11 Newts: AWB 130mm, f5, Z12 f5; Cats: VMC110L, Intes MK66,VMC200L f9.75 EPs: KK Fujiyama Orthoscopics, 2x Vixen NPLs (40-6mm) and BCOs, Baader Mark IV zooms, TV Panoptics, Delos, Plossl 32-8mm. Mixed brand Masuyama/Astroplans Binoculars: Nikon Aculon 10x50, Celestron 15x70, Baader Maxbright. Mounts: Star Seeker IV, Vixen Porta II, Celestron CG5
- turboscrew
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Re: the filaments of the cosmic web spin!
One always learns something new here!
- Juha
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I don't suffer from insanity. I'm enjoying every minute of it.
Senior Embedded SW Designer
Telescope: OrionOptics XV12, Mount: CEM120, Tri-pier 360 and alternative dobson mount.
Grab 'n go: Omegon AC 102/660 on AZ-3 mount
Eyepieces: 26 mm Omegon SWAN 70°, 15 mm TV Plössl, 12.5 mm Baader Morpheus, 10 mm TV Delos, 6 mm Baader Classic Ortho, 5 mm TV DeLite, 4 mm and 3 mm TV Radians
Cameras: ZWO ASI 294MM Pro, Omegon veLOX 178C
OAG: TS-Optics TSOAG09, ZWO EFW 7 x 36 mm, ZWO filter sets: LRGB and Ha/OIII/SII
Explore Scientific HR 2" coma corrector, Meade x3 1.25" Barlow, TV PowerMate 4x 2"
Some filters (#80A, ND-96, ND-09, Astronomik UHC)
Laptop: Acer Enduro Urban N3 semi-rugged, Windows 11
LAT 61° 28' 10.9" N, Bortle 5
I don't suffer from insanity. I'm enjoying every minute of it.
- GCoyote
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Re: the filaments of the cosmic web spin!
Indeed.
Any metaphor will tear if stretched over too much reality.
Gary C
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Svbony 2.1x42 Binoculars
(And a bunch of stuff I'm still trying to fix or find parts for.)
Gary C
Celestron Astro Master 130mm f5 Newtonian GEM
Meade 114-EQ-DH f7.9 Newtonian w/ manual GEM
Bushnell 90mm f13.9 Catadioptric
Gskyer 80mm f5 Alt/Az refractor
Jason 10x50 Binoculars
Celestron 7x50 Binoculars
Svbony 2.1x42 Binoculars
(And a bunch of stuff I'm still trying to fix or find parts for.)
- Graeme1858
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Re: the filaments of the cosmic web spin!
I heard about this in a podcast (Awesome Astronomy) this morning whilst driving to work. Fascinating indeed!
The wow for me is that the filaments are so huge that even though they spin at over 100 km per second they still have not rotated once during the whole age of the universe (our 13.8 bn bit!) Wow!
Here's a New Scientist piece:
https://www.newscientist.com/article/22 ... -spinning/
Regards
Graeme
The wow for me is that the filaments are so huge that even though they spin at over 100 km per second they still have not rotated once during the whole age of the universe (our 13.8 bn bit!) Wow!
Here's a New Scientist piece:
https://www.newscientist.com/article/22 ... -spinning/
Regards
Graeme
______________________________________________
Celestron 9.25 f10 SCT, f6.3FR, CGX mount.
ASI1600MM Pro, ASI294MC Pro, ASI224MC
ZWO EFW, ZWO OAG, ASI220MM Mini.
APM 11x70 ED APO Binoculars.
https://www.averywayobservatory.co.uk/
Celestron 9.25 f10 SCT, f6.3FR, CGX mount.
ASI1600MM Pro, ASI294MC Pro, ASI224MC
ZWO EFW, ZWO OAG, ASI220MM Mini.
APM 11x70 ED APO Binoculars.
https://www.averywayobservatory.co.uk/
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