Re: Sunspots



On Feb 10, 10:14 pm, srp2...@xxxxxxxxx wrote:
On 10 fév, 19:56, Sam Wormley <sworml...@xxxxxxxxx> wrote:



srp2...@xxxxxxxxx wrote:
On 10 fév, 18:04, Sam Wormley <sworml...@xxxxxxxxx> wrote:
http://www.mhhe.com/physsci/astronomy/fix/student/chapter17/17f02.html

Interesting, but this is the theory.

And that theory is confirmed by the neutrino energies
coming from the sun. Perhaps you are uncomfortable with
predicted energies being confirmed by observations, André.

Name Reaction % Termination Neutrino Energy, q
------------------------------------------------------------------------------
pp p + p --> H² + e+ + v_e 100 q < 0.420 MeV
pep p + e- + p --> H² + v_e 0.4 q = 1..442 MeV
hep He³ + p --> He4 + v_e 0.00002 q < 18.773 MeV
Be7 Be7 + e- --> Li7 + v_e 15 q = 0.862 MeV 89.7%
q = 0.384 MeV 10.3%
B8 B8 --> Be7 + e+ + v_e 0.02 q < 15 MeV

Calculated Solar neutrino fluxes at the Earth's Surface
------------------------------------------------------------------------------
pp 6.0 x 10^10 cm^-2 s^-1
pep 0.014 x 10^10 cm^-2 s^-1
hep 8 x 10^3 cm^-2 s^-1
Be7 0.47 x 10^10 cm^-2 s^-1
B8 5.8 x 10^6 cm^-2 s^-1

Do you have a formal paper describing an actual successful
experiment ?

papers by John N. Bahcall, Sarbani Basu, M. H. Pinsonneault:
> http://xxx.lanl.gov/abs/astro-ph/9805135
http://pdg.lbl.gov/1998/solarnu_s005313.pdf
http://www.slac.stanford.edu/pubs/beamline/24/3/24-3-bahcall.pdf

André Michaud

I'm surprised you don't keep up on this stuff, André.

I do keep up on this stuff, as you say. But neutrinos coming to us
can only be manifestations of surface activity.

What makes you believe this? Based on what?

You're aware that most neutrinos pass through the
entire diameter of the earth without even slowing down,
right?

What assumptions are you making about interaction
cross sections?

- Randy
.



Relevant Pages

  • Re: Sunspots
    ... coming from the sun. ... predicted energies being confirmed by observations, ... q = 0.384 MeV 10.3% ... can only be manifestations of surface activity. ...
    (sci.physics)
  • Re: do photons interact with gravitons?
    ... about the efficiency (or ... if L' = 3.86E33 erg/sec should be the output from the Sun ... Especially the electrons would thus gain extreme ... We have these strange properties of Majorama neutrinos ...
    (sci.physics)
  • Re: Sunspots
    ... to us identifiable as coming from the sun, ... 50 feet thick curtain of trees burning burning 500 feet ... confirmed nor even hinted at in labs. ... neutrinos bombarding us from the entire sky? ...
    (sci.physics)
  • Re: AKICIF: Origin of film "Sunshine"
    ... years to cool off enough to notice, and much longer for Earth to get ... In The Songs of Distant Earth, Sun is discovered to become a ... for why there were too few solar neutrinos detected was that the sun's ... fusion power source had gone out, and that this would somehow result ...
    (rec.arts.sf.fandom)
  • Re: Sunspots
    ... 50 feet thick curtain of trees burning burning 500 feet ... right out of the core of the sun... ... or maybe this is a lensing effect that causes neutrinos ...
    (sci.physics)

Quantcast