https://bigthink.com/hard-science/einstein-general-relativity-passes-another-test/
Tuesday-New Podcast from Time and the Technosphere.
Moving from the biosphere through the technosphere INTO the Noosphere.
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Just Before Our Sun Dies, Its Light Will Shatter The Asteroid Belt to Dust
https://www.sciencealert.com/just-before-our-sun-dies-its-light-will-pulverise-the-asteroid-belt#:~:text=%2FJPL%2DCaltech)-,Just%20Before%20Our%20Sun%20Dies%2C%20Its%20Light%20Will,The%20Asteroid%20Belt%20to%20Dust
After the last post, a few minutes ago, I walked downstairs and I thought, “I bet the sun can turn the asteroid belt to dust.” It was just on my radar and I picked it up. I came upstairs and googled, “Can the sun turn the asteroid belt to dust?” Holy crap. Geez, my radar is freaky. Just to be clear, the coming solar flash is not our sun DYING. It is our Sun changing. It isn’t going to die for billions of years. However, my intuition says that the ELM energy from just the flash could turn our asteroid belt to dust. I could be wrong but a solar flash is super, super strong.
13 FEBRUARY 2020
The light of a dying star is so intense it can reduce asteroids to dust. A new study indicates this will happen to most of the stars currently burning in the Universe, including the Sun, which will shatter its asteroid belt down to boulders in about 5 to 6 billion years.
The sole agent of this mass destruction is electromagnetic radiation, according to modelling, and it has to do with the Yarkovsky-O’Keefe-Radzievskii-Paddack (YORP) effect, named after the four scientists who contributed to understanding it.
The YORP effect occurs when the heat of a star changes the rotation of a small Solar System object – an asteroid, for example.
Light energy from the Sun is absorbed by the asteroid, warming it up. The heat makes its way through the rock until it is emitted again in different directions as thermal radiation. This emission generates a tiny amount of thrust; over short time periods, this doesn’t really change much, but over longer periods, it can cause an asteroid to spin or wobble off-axis.
The phenomenon of tumbling asteroids is one way we can already observe this process today. But as the Sun evolves, the effect is going to become more pronounced.
When main sequence stars like the Sun reach their elderly stages, they enter something called the giant branch stage as they expand out, getting very big and very bright. That stage lasts just a few million years before – whoosh! – they eject their outer material and collapse down into a dense dead star called a white dwarf.
For the Sun, that process will take place in about 5 or 6 billion years (mark it in your calendar).
“When a typical star reaches the giant branch stage, its luminosity reaches a maximum of between 1,000 and 10,000 times the luminosity of our Sun,” explained astrophysicist Dimitri Veras of the University of Warwick.
“Then the star contracts down into an Earth-sized white dwarf very quickly, where its luminosity drops to levels below our Sun’s. Hence, the YORP effect is very important during the giant branch phase, but almost non-existent after the star has become a white dwarf.”
Because of the initially increased luminosity, the YORP effect would also increase. And most asteroids are not dense chunks of rocks; they’re more loosey-goosey, low-density conglomerations riddled with cavities, known as “rubble piles“.
According to the team’s computer modelling, the YORP effect would spin most asteroids larger than 200 metres across (about 660 feet) enough to cause them to fracture and disintegrate.
This disintegration wouldn’t happen to objects with higher structural integrity, such as dwarf planets (so Pluto is safe!). But an asteroid belt has a different fate.
“For one solar-mass giant branch stars – like what our Sun will become – even exo-asteroid belt analogues will be effectively destroyed,” Veras said.
“The YORP effect in these systems is very violent and acts quickly, on the order of a million years. Not only will our own asteroid belt be destroyed, but it will be done quickly and violently. And due solely to the light from our Sun.”
It’s not just computer modelling that shows evidence of this. Our observations of white dwarfs suggest this, too.
Over a quarter of white dwarf stars have evidence of metals from asteroid guts in their spectra. These asteroid signatures in white dwarf spectra are something of a mystery and are still debated.
The YORP effect could explain how the asteroid metals got there. As the asteroids crumble, they form a disc of asteroid dust around the white dwarf, some of which gets slurped down into the dead star.
“These results help locate debris fields in giant branch and white dwarf planetary systems, which is crucial to determining how white dwarfs are polluted,” Veras said.
“We need to know where the debris is by the time the star becomes a white dwarf to understand how discs are formed. So the YORP effect provides important context for determining where that debris would originate.”
The research has been published in the Monthly Notices of the Royal Astronomical Society.
Wednesday-Earth Holon Status
Protected: 40 Research Studies Affirm Naturally Acquired Immunity to Covid-19: Documented, Linked, and Quoted
SPACE Wild New Paper Claims Earth May Be Surrounded by a Giant Magnetic Tunnel
Corey Goode posted this article on LinkedIn this morning.
“Who else thinks this sounds a lot like my 20-and-Back testimony from my movie ABOVE MAJESTIC where I described how the Galactic Portal System worked? These electromagnetic filaments ultimately connect to the Cosmic Web. CG:
Wild New Paper Claims Earth May Be Surrounded by a Giant Magnetic Tunnel -“
Left: what the tunnel would look like; right: what the sky does look like. (Image Credit Below)
MICHELLE STARR 15 OCTOBER 2021
Mysterious structures in the sky that have puzzled astronomers for decades might finally have an explanation – and it’s quite something. The North Polar Spur and the Fan Region, on opposite sides of the sky, may be connected by a vast system of magnetized filaments. These form a structure resembling a tunnel that circles the Solar System, and many nearby stars besides.
“If we were to look up in the sky,” said astronomer Jennifer West of the University of Toronto in Canada, “we would see this tunnel-like structure in just about every direction we looked – that is, if we had eyes that could see radio light.”
We’ve known about the two structures for quite some time – since the 1960s, in fact – but they have been difficult to understand. That’s because it’s really hard to work out exactly how far away they are; distances have ranged from hundreds to thousands of light-years away. However, no analysis had ever linked the two structures together.
West and her colleagues were able to show that the two regions, and prominent radio loops in the space between them, could be linked, solving many of the puzzling problems associated with both. Comparison with a real tunnel showing orientation. (Left: Pixabay/wal_172619/J. West; Right: Dominion Radio Astrophysical Observatory/Villa Elisa telescope/ESA/Planck Collaboration/Stellarium/J. West)
“A few years ago, one of our co-authors, Tom Landecker, told me about a paper from 1965, from the early days of radio astronomy. Based on the crude data available at this time, the authors (Mathewson & Milne), speculated that these polarized radio signals could arise from our view of the Local Arm of the galaxy, from inside it,” West explained. “That paper inspired me to develop this idea and tie my model to the vastly better data that our telescopes give us today.”
Using modelling and simulations, the researchers figured out what the radio sky would look like, if the two structures were connected by magnetic filaments, playing with parameters such as distance to determine the best fit. From this, the team was able to determine that the most likely distance for the structures from the Solar System is around 350 light-years, consistent with some of the closer estimates. This includes an estimate for the distance of the North Polar Spur earlier this year based on Gaia data, which found that almost all of the spur is within 500 light-years.
The entire length of the tunnel modeled by West and her team is around 1,000 light-years. Light intensity of the North Polar Spur (top) and Fan Region (bottom). (West et al., arXiv, 2021) This model is in agreement with a wide range of observational properties of the North Polar Spur and Fan Region, including the shape, the polarization of the electromagnetic radiation (that is, how the wave is twisted), and the brightness.
“This is extremely clever work,” said astronomer Bryan Gaensler of the University of Toronto. “When Jennifer first pitched this to me, I thought it was too ‘out-there’ to be a possible explanation. But she was ultimately able to convince me! Now I’m excited to see how the rest of the astronomy community reacts.”
More work is needed to first confirm the findings, and then model the structure in greater detail. But doing so may help to solve an even bigger mystery: the formation and evolution of magnetic fields in galaxies, and how these fields are maintained. It could also, the researchers said, provide context for understanding other magnetic filament structures found around the galaxy. The team is planning to perform more complex modelling; but, they suggest, more sensitive, higher-resolution observations would help reveal hidden details that show how the structure fits into the broader galactic context.
“Magnetic fields don’t exist in isolation. They all must connect to each other. So a next step is to better understand how this local magnetic field connects both to the larger-scale galactic magnetic field, and also to the smaller scale magnetic fields of our Sun and Earth,” West said. “I think it’s just awesome to imagine that these structures are everywhere, whenever we look up into the night sky.” The research is due to appear in The Astrophysical Journal, and is available on arXiv.
Cover image credit: Dominion Radio Astrophysical Observatory/Villa Elisa telescope/ESA/Planck Collaboration/Stellarium/J. West © ScienceAlert US LLC. All rights reserved
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Friday; Evolution Forward for 4Arginine
In the body, the amino acid arginine changes into nitric oxide (NO). Nitric oxide is a powerful neurotransmitter that helps blood vessels relax and also improves circulation. Some evidence shows that arginine may help improve blood flow in the arteries of the heart.
The Theme is 4 Arginine (Blue Eagle); Vision, creativity and Mind
The analog support is 4 Valine (Yellow Seed); Targeting and awareness
The Guide Power this morning was 4 Asparigine (Blue Monkey); Magic and Play
The antipode currently until dusk is 4 Serine (Red Serpent); Survival, instinct, passion
The Hidden Wisdom is 10 World Bridger or Planetary CHANGE and DEATH. I’m just writing this after I was drawn to the survival of a disaster videos put out by Suspicious Observer so my intuition was humming.
The 5GForce is 10 Serine (Red Serpent) or Planetary instinct, planetary survival going right with the videos I posted. Since that is 5th dimensional help it seems to me we should heed some of this. We have ten years to decide where we want to be.
The sex sense – an alien perspective on love and reductionism
I took an Excedrin for the morning’s headache, got back in bed and did some Wim Hof Migraine Breathing. Three cheers for our pal, Mr. Hof!!! The pain vanished, and the caffeine took me back to the words of my dear mother, God rest her soul. “We live in a sex cult.” Yeah, right out […]
The sex sense – an alien perspective on love and reductionism