Once upon a time, in a warping time and space operating system far away ....
Yes .... well .... of course.
Nice one, Katyanna .... Nothing there hard to believe is not perfectly true in that filed report. Thanks for the invaluable info.
A new model has traced the origins of high-energy neutrinos, cosmic rays, and gamma rays to powerful jets billowing around supermassive black holes. Known as cosmic messenger particles, these neutrinos and rays carry huge amounts of energy, travel insane distances across space, and can be detected when they reach Earth – yet …
It's a good question, neutrinos are everywhere and can carry a large amount of energy, but they don't carry electrical charge and only interact via the weak nuclear force (and gravity) unlike electrons (carry electrical charge) and quarks (electrical charge and strong nuclear force). This is sometimes expressed as having a tiny interaction cross section (the area one needs to pass through to be affected by another particle). The result is billions of neutrinos originating in the sun pass through you every second https://en.wikipedia.org/wiki/Neutrino#Solar
Neither it could open the door, nor walk, nor drink - nor even piss out an aftertrace on the snow for the boffins to explore - except the fact that Lily *Was* Here. So inertious is to imagine it being lagged along such slow boozards as its bar buddies withesses are (-:
It has a lot more deals around. Kinda Santa on the Eve of the Christmas :-)
Some of us remember, of course. Santa, Irish Pub.
Having chewed through "Evolution - the story of life" for bedtime reading (for the third time) last year, the youngest switched to "We Have No Idea" (Whiteson/Cham) at the beginning of this year, and we hit 'cosmic rays' section on Friday - discussed this on Sunday night. I suppose this sort of stuff might seem a bit heady for an 11/12 year old but it is *fun* letting their imagination run wild on stuff like this. The book is a *great* read for anyone interested in physics. And lamas.
I did need to dig a bit, as the discussion of "cosmic rays" alongside fundamental particles (neutrinos and gamma) was a bit confusing and the original paper doesn't help. It turns out "cosmic ray" means it has mass (no-one tell them about the neutrinos!), very high energy and comes from space, so anything up to the size of a nucleus (rocks don't count).
Cosmic rays are high energy radiation from space. It is often used purely for the massive particles (which includes neutrinos, btw), but not always and it's a relatively recent distinction in any case. The particles need not be fundamental either - nuclei up to and including iron are found in the flux (esp. for E < ~10^15eV)
It is virtually always used to mean particles with E>10^12eV, since below that energy, the flux of extra-solar particles is completely swamped by the solar wind.
Cosmic rays are high energy radiation from space. It is often used purely for the massive particles (which includes neutrinos, btw), but not always and it's a relatively recent distinction in any case. The particles need not be fundamental either - nuclei up to and including iron are found in the flux (esp. for E < ~10^15eV)
Exactly: if not solely for massive particles then it includes photons (there aren't many other massless ones we can detect), so the story becomes, "cosmic rays have similar energy to other cosmic rays of similar energy". Knowing they are making an unstated distinction for nuclei separate to neutrinos and gamma is rather crucial to understand what's going on.
I see what you mean, but the researcher talks about the intensities being similar.
“The fact that the measured intensities of very high-energy neutrinos, ultrahigh-energy cosmic rays, and high-energy gamma rays are roughly comparable tempted us to wonder if these extremely energetic particles have some physical connections.”
Logically, the intensity of <generic_cosmic_radiation> can't be the same as intensity of <generic_cosmic_radiation> + intensity of gamma + intensity of neutrinos unless there's no flux of neutrinos and gamma at all*. Hence he *must* be using the specific context.
OTOH, it's a good old while since I was involved in CR research - maybe the distinction is always made nowadays... :-)
* for a given energy range
..while the Earth has a form of a luggage cart.
Once there were beliefs that this particular planet is a center of the UniVerse.
So if to combine the belief with the registered fact stated above, what are the Cosmic messages that they bring every tiniest bit of the Beat? How many seals should be broken until the Realization is realized?
(-;
Maybe I am missing something, but I had kind of always thought this was already a well accepted theory / known / assumed. I guess it's nice that they spent piles of money to play with big electromagnets in order to still not quite really prove it? I guess I need to walk into their bar for this to all make sense as being newsworthy. (Or interesting.)