Thanks for taking an interest. That neutrino
diagram is still not fully confirmed
experimentally I understand though the latest
detectors are showing more details. I would
naturally defer to your comprehensive
understanding, Trinitree, I just try to
extrapolate from known facts.

Many eclipsing binaries have white dwarfs
orbiting bright stars, some of greater mass
than the sun with greater theoretical neutrino
fluxes. I thinks the flux passing through the
dwarf in one direction will, as some energy in
released in interactions, cause some "sound"
waves to propagate to the exit side. If this
causes material to "jump" from the exit side
I would say photons would be generated from
the normal mode of accelerating electrons. This
would be omnidirectional emmision I think.

We know that anti neutrinos are detected by
Cherenkov light generated when an electron is
kicked in the water of the detector. Surely
this happens writ large in the white dwarf
interior. In addition there are nuclei that
react. Sometimes.

I repeat that falling on degenerate stars gives
extra energy to particles making reactions
more likely.

Whatever does happen, I think observations may
have shown x-ray beams emanating from dwarfs
passing in front of stars. There was a famous
transient in the mid seventies seen by the
British X5 craft. A slow rise and fall of
energy from a star. This might be an answer.