What if Planet 9 is a Primordial Black Hole?

[John Clark]

Due to the odd orbits of recently discovered Trans-Neptunian objects astronomers say that, unless it's just a very unlikely coincidence, there is probably a unknown planet between 5 and 15 earth masses orbiting the sun between 300 and 1000 times as distant from the sun as earth's orbit is, but other than this indirect evidence optical telescopes have been unable to find the slightest trace of it. A new paper suggests that the reason it's so hard to find is that the gravitational mass may not be a planet at all but is a Primordial Black Hole about the size of your fist, and says we need to look for it with a Gamma Ray Telescope not the optical sort.

What if Planet 9 is a Primordial Black Hole?

The Optical Gravitational Lensing Experiment has detected ultra short micro lezing events caused by gravitational masses in the same range in the distant Magellanic  Cloud (a dwarf galaxy) that they assume were caused by free floating planets not connected to any star, but perhaps it was caused by something even more exotic like a Primordial  Black Hole.

Optical Gravitational Lensing Experiment 

It's probably just a boring planet but maybe not, it would be GREAT if it turned out to be true, we could actually sent a robot spacecraft to explore a BlacK Hole, and if it used the sun grazing "Goddard orbit" to boost its speed it could get there in less than a decade.

John K Clark

[spudb...@aol.com]

No planet or frozen comet is boring if we can treat it as real estate, to be mined by your QC AI robots. "We go to the Moon, not because it is easy, but because it is hard." -John Kennedy I would push for the Moon out to the Oort Cloud to make a butt load of wealth for the entire species. If we can harvest the gravitational force of a primordial black hole to catapult it out to Proxima and Barnard's Star for similar pursuits, all the better! 

--
You received this message because you are subscribed to the Google Groups "Everything List" group.
To unsubscribe from this group and stop receiving emails from it, send an email to everything-li...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/everything-list/CAJPayv2b7fyrVWziAm1Q4E6cx1Ok%2B7vjiadE3yf4ZQBGYciL7g%40mail.gmail.com.

[ronaldheld]

Not certain there is a planet 9, but my first choice would be a Superearth overall PBH.   Still need to rule it out.

[Lawrence Crowell]

I would say if this is something exotic it may be a piece of neutron star. Neutron stars are largely a neutron liquid of sorts. When they collide this splash may hurl pieces of neutron liquid the size of a baseball on up. This baseball sized piece of neutron liquid would have the mass of our moon. These objects may be more common that we might suppose.

LC

[Brent Meeker]

Wouldn't a small piece of a neutron star quickly explode via beta decay?

Brent

--

You received this message because you are subscribed to the Google Groups "Everything List" group.
To unsubscribe from this group and stop receiving emails from it, send an email to everything-li...@googlegroups.com.

To view this discussion on the web visit https://groups.google.com/d/msgid/everything-list/9bc48f1c-0d8c-4036-9893-9ff43a3fd135%40googlegroups.com.

[Lawrence Crowell]

On Thursday, November 7, 2019 at 6:34:24 PM UTC-6, Brent wrote:

Wouldn't a small piece of a neutron star quickly explode via beta decay?

Brent

I worked this out using the old liquid drop model. A baseball sized neutron sphere would have a surface gravity of around 10^{14}m/s^2, as I recall, which is enough to drag weak decay positron products back.

LC

 

On 11/7/2019 4:24 PM, Lawrence Crowell wrote:

I would say if this is something exotic it may be a piece of neutron star. Neutron stars are largely a neutron liquid of sorts. When they collide this splash may hurl pieces of neutron liquid the size of a baseball on up. This baseball sized piece of neutron liquid would have the mass of our moon. These objects may be more common that we might suppose.

LC

On Wednesday, November 6, 2019 at 2:44:18 AM UTC-6, John Clark wrote:

Due to the odd orbits of recently discovered Trans-Neptunian objects astronomers say that, unless it's just a very unlikely coincidence, there is probably a unknown planet between 5 and 15 earth masses orbiting the sun between 300 and 1000 times as distant from the sun as earth's orbit is, but other than this indirect evidence optical telescopes have been unable to find the slightest trace of it. A new paper suggests that the reason it's so hard to find is that the gravitational mass may not be a planet at all but is a Primordial Black Hole about the size of your fist, and says we need to look for it with a Gamma Ray Telescope not the optical sort.

What if Planet 9 is a Primordial Black Hole?

The Optical Gravitational Lensing Experiment has detected ultra short micro lezing events caused by gravitational masses in the same range in the distant Magellanic  Cloud (a dwarf galaxy) that they assume were caused by free floating planets not connected to any star, but perhaps it was caused by something even more exotic like a Primordial  Black Hole.

Optical Gravitational Lensing Experiment 

It's probably just a boring planet but maybe not, it would be GREAT if it turned out to be true, we could actually sent a robot spacecraft to explore a BlacK Hole, and if it used the sun grazing "Goddard orbit" to boost its speed it could get there in less than a decade.

John K Clark

--
You received this message because you are subscribed to the Google Groups "Everything List" group.

To unsubscribe from this group and stop receiving emails from it, send an email to everyth...@googlegroups.com.

[John Clark]

On Thu, Nov 7, 2019 at 8:25 PM Lawrence Crowell <goldenfield...@gmail.com> wrote:

On Thursday, November 7, 2019 at 6:34:24 PM UTC-6, Brent wrote:

>> Wouldn't a small piece of a neutron star quickly explode via beta decay?

>I worked this out using the old liquid drop model. A baseball sized neutron sphere would have a surface gravity of around 10^{14}m/s^2, as I recall, which is enough to drag weak decay positron products back.

If its made of neutronium, Neutron Star stuff, it would have to be bigger than a baseball. We're looking for something about 10 times the mass of the Earth or about 6 *10^25 kg, neutronium has a density of about 4*10^17 kg per cubic meter, so you'd need 150,000,000 cubic meters of neutronium, that would be a sphere with a radius of 350 meters, nearly half a mile across. That's much bigger than a baseball but not large enough to keep it stable, the gravity would be too weak to provide enough pressure to keep it stable.

However planet 9 could be a "Stranglet", that is a body made of "Strange Matter", a theorized form of matter made up of equal parts up, down and strange quarks. If such a thing exists this hypothetical form of matter would be even denser than neutronium and be stable even at zero pressure. In fact it would be the most stable form of matter that there is, and that means it would be just about the most dangerous thing there is. Strange Matter, if it exists, would act as a catalyst and turn any ordinary matter that comes into contact with it into more strange matter.

 John K Clark

[Lawrence Crowell]

I did some calculations on this a while back using the liquid drop model of the nucleus. This is a semi-empirical model of a nucleus as a liquid with various properties. I then included gravity into the model, where for a certain threshold of mass it is possible to have a chunk of neutron star about the size of a baseball (a few inches or 5 cm in radius) and the mass of the moon. 

The strangelet in QCD phenomenology has an (uds) quark configuration similar to the Lambda hyperon. A strangelet may then be a nucleus of sorts made with hyperons in place of neutrons. A heavy neutron star may have a hyperon core, and such a neutron star in a collision could splash out strangelet material. These might have some pathological properties, such as catalyzing other nuclei to become "strange."

LC