by BeAChooser » Tue Feb 15, 2022 1:34 am
Here’s another “could be” …
https://phys.org/news/2022-02-theory-ba ... rdial.html
Theory shows baryogenesis requirement could drive the contribution of primordial black holes to dark matter
… snip …
Studies suggest that the total amount of dark matter in the universe today is approximately five times larger than that of ordinary matter, also referred to as baryons. The reasons for this significantly higher proportion of dark matter, however, remain unclear. This unanswered research question is known as the cosmic coincidence problem.
Yi-Peng Wu, Elena Pinetti and Joseph Silk, three researchers at Laboratoire de Physique Théorique et Hautes Energies (LPTHE), UMR 7589 CNRS and Sorbonne Université, the Fermi National Accelerator Laboratory, and Institut d'Astrophysique de Paris (IAP, UMR 7095 CNRS), have recently carried out a study aimed at providing a possible solution to the cosmic coincidence problem. In their paper, published in Physical Review Letters, they suggest that the higher proportion of dark matter could be linked to baryogenesis, a physical process leading to baryonic asymmetry that is hypothesized to have occurred in the early universe.
It’s another study with, as far as I see, NO practical value whatsoever … other than paying the authors’ mortgages.
The article does mention one space-based telescope I haven’t heard of before … DECIGO. It turns out to be the Japanese … a whole bunch of Japanese (
https://arxiv.org/abs/2006.13545 ) … wanting to get in on the gravitational wave observatory scam. Expected cost? Well, to show how carefully they guard such information, I couldn’t find out. And did I mention the money the Chinese are throwing at such space based devices … for example, the TianQin and Taiji observatories? I did find an indication that the cost of TianQin is in the hundreds of millions.
Space "could be" the next frontier for gravitational wave *scientists* and a black hole for your money.
Here’s another “could be” …
[url]https://phys.org/news/2022-02-theory-baryogenesis-requirement-contribution-primordial.html[/url]
[quote]Theory shows baryogenesis requirement could drive the contribution of primordial black holes to dark matter
… snip …
Studies suggest that the total amount of dark matter in the universe today is approximately five times larger than that of ordinary matter, also referred to as baryons. The reasons for this significantly higher proportion of dark matter, however, remain unclear. This unanswered research question is known as the cosmic coincidence problem.
Yi-Peng Wu, Elena Pinetti and Joseph Silk, three researchers at Laboratoire de Physique Théorique et Hautes Energies (LPTHE), UMR 7589 CNRS and Sorbonne Université, the Fermi National Accelerator Laboratory, and Institut d'Astrophysique de Paris (IAP, UMR 7095 CNRS), have recently carried out a study aimed at providing a possible solution to the cosmic coincidence problem. In their paper, published in Physical Review Letters, they suggest that the higher proportion of dark matter [b]could be[/b] linked to baryogenesis, a physical process leading to baryonic asymmetry that is hypothesized to have occurred in the early universe.[/quote]
It’s another study with, as far as I see, NO practical value whatsoever … other than paying the authors’ mortgages.
The article does mention one space-based telescope I haven’t heard of before … DECIGO. It turns out to be the Japanese … a whole bunch of Japanese (https://arxiv.org/abs/2006.13545 ) … wanting to get in on the gravitational wave observatory scam. Expected cost? Well, to show how carefully they guard such information, I couldn’t find out. And did I mention the money the Chinese are throwing at such space based devices … for example, the TianQin and Taiji observatories? I did find an indication that the cost of TianQin is in the hundreds of millions. [b]Space "could be" the next frontier for gravitational wave *scientists* and a black hole for your money.[/b]