Cosmic Catastrophe

[freebeard]

'Til next week. It was my mother that told me about cobwebs in burnt out houses.

[aerohead]

I thought that this was going to have something to do with space weather and cosmic catastrophe.
Earth doesn't have these strong fields or microgravity.
In my next life I may have time for recreational research, but in the time I have remaining, I need to stay focused on research germane to Earth science.
Al gave me a neodymium rare-earth magnet out of a computer drive. I took it outside and failed to get any dirt, rocks, lava, or quartz to stick to it.
I figured, if one of the strongest magnets known, at zero-distance, can't attract any surface lithospheric objects, it would be dubious to expect any geomagnetic field to do any better.
I was also unable to get my compass to demonstrate any unusual needle dip deflections, under any orientation. Day or night. Week to week. Month to month.

[freebeard]

I thought that this was going to have something to do with space weather and cosmic catastrophe.
Earth doesn't have these strong fields or microgravity.

#537 is assuredly about space weather. #541 was the [hot, dense] reason I accept the conclusion.

[aerohead]

perhaps, but it's not anything that impacts Earth.

[freebeard]

#536 [is less than] #537

Can you take just one, and in your own words, describe the contents in just a couple lines of text?

I was pleased to be able to reduce the abstract to three words. I guess no extra credit for that.

[aerohead]

Tried to find data for a 'mini-nova'.
* The closest I got was a 'dwarf novae' ( eruptive variable ), and 'nova-like' variables ( eruptive variables ), both, are binary 'cataclysmic variables.'
* The context of these phenomena are that, ' it is the binary structure of cataclysmic variables which is the essential' ingredient in producing nova outburts.' Ronald Webbink, Professor of Astronomy, University of Illinois Urbana-Champaign, trained at MIT, and University of Cambridge.
* It's impossible for a main sequence star like our Sun to produce a nova.
* Only a main sequence star with a binary companion star, like a white dwarf can produce such a phenomena.
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* The Milky Way produces about 25-35 novae a year.
* Only a fraction are visible to the naked eye, @ magnitude 4.5, or brighter.
* In a typical outburst, the star system brightens, then ejects a shell.

[freebeard]

Lay low for a month and you come back with that? What do you think about this:

treehugger.com: What Is a Dark Star? By Christian Cotroneo Updated July 25, 2019

Black stars may be the most influential celestial bodies in the universe that no one knows for sure ever existed.

In fact, they may be the elder stars of the cosmos, twinkling long before stars — at least as we know them now — showed up.

So why is there no evidence of them today?

They may have literally faded to black. As in, black hole.

At least that's the theory posited by University of Michigan physicist Katherine Freese in a recent interview with Astronomy.

Freese suggests dark stars are actually the seeds of the supermassive black holes that lurk in the heart of every galaxy. After all, even time-bending, light-hoovering regions of space have to grow from something. And that something may be a dark star.
[snip]
But how does a theory that hinges on theory ever end up becoming a reality? We just have to spot one on the endless haystack that is the cosmos.

And that may be a job for the James Webb Space Telescope.

[aerohead]

I haven't heard of them referred to that way, but what you describe is at the cutting edge of cosmology right now.
Some are coming to believe that black holes, massive dark matter/ energy, actually preceded the formation of visible galaxies.
They're constructing maps of the dark matter, based upon gravitational affects on visible mass.
Gravitational lensing can be observed.
Their also considering neutrinos, maybe 4- types now.

[freebeard]

I hadn't either.

Aren't Dark Matter and Dark Energy two different things? Dark Matter being the Faeirie Realm/Multiverse and Dark Energy being a misapprehension of Red Shift data?

I just used it as a search term. Black Sun was a dead end (en.wikipedia.org/wiki/Black_Sun_(symbol)#Satanism).
Then there is: Grateful Dead - Dark Star (Live/Dead) 1969

[oil pan 4]

Dark matter and dark energy have one thing in common.

Dark stars are real, the coldest one to date has a surface temperature of about -10F. Turns out they're hard to find.
Dark stars are one of those accidental discoveries that throws the standard solar model theory onto the compost pile with the rest of the scientific manure. They weren't supposed to exist so so one was looking for them.