Not certain there is a planet 9, but my first choice would be a Superearth overall PBH. Still need to rule it out.
On Wednesday, November 6, 2019 at 12:44:18 AM UTC-8, 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? > <https://arxiv.org/pdf/1909.11090.pdf> > > 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 > <https://en.wikipedia.org/wiki/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 [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/everything-list/0b935339-1e06-4a88-8abc-596fc9d302b4%40googlegroups.com.
