Re: Definitive Proof that the Corona is Tens of Thousands of Times More Dense than Earth's Atmosphere

Den 13.12.2024 00:03, skrev LaurenceClarkCrossen:

On Thu, 12 Dec 2024 21:37:51 +0000, Paul B. Andersen wrote:
 

Den 10.12.2024 22:52, skrev LaurenceClarkCrossen:

The accepted solar physics is that the density of the Sun's corona is
only 1/10,000ths of Earth's atmosphere. Robitaille disproves this by
relying on Zirin's refutation of Saha's equation in the following way.
Ionization in the corona would be maximized either by a minimum pressure
or a maximum temperature. Saha's equation relied on a low-temperature
estimate from the ionization, giving the corona low pressure. However,
the ions Iron 14 and Iron 13 are of equal abundance, there so from the
Elwert ionization theory, this provides a temperature of one million
degrees such that the pressure must be at least tens of thousands times
more than Earth's atmosphere.
>
Harold Zirin p. 72
Robitaille: "The Saha Equation & the Pressure above the Photosphere!"
https://www.youtube.com/watch?
v=vt_wnyewBm0&list=PLdnBDlkvz2vMjeEke6PLIQWNT1eZf7O62&index=4

>
The pressure in the solar photosphere is only approximately
1% of the  pressure in Earth's atmosphere near the ground,
yet it is radiating black body radiation at 5778 K.
>
If the pressure in the corona were tens of times more
than the pressure in Earth's atmosphere near the ground, then
the corona would also radiate black body radiation. At temperature
1 million K, the radiated energy would be 0.9e9 (0.9 billion) times
what it is.
>
Don't you understand how ridiculous this is?
>
The radiation from the corona is a discrete spectrum consisting
of emission lines, and nothing like a black body spectrum.
That's why we know that the pressure must be _much_ less
than in the photosphere.
>
That's why we can see the photosphere through the corona.

The corona emits no blackbody radiation, and a denser corona would not
emit blackbody radiation either.

A gas/plasma absorbs the same frequencies as it emits.
The corona emits no blackbody radiation, it emits a discrete
set of frequencies (emission lines), mostly in the X-ray range.
That means that the corona can't absorb blackbody radiation.
That's why we can see the photosphere through the corona.

It would block more of the blackbody
radiation from the photosphere concealing the higher temperature there
than the 5778K believed in.

Have you ever looked at the Sun? (Use dark glasses)
What you see is the photosphere, you don't see the corona at all.
It is idiotic to claim that the invisible (to the eye)
corona can block the very bright (to the eye) photosphere.
If you partly "blocks" the blackbody radiation from the photosphere
with dark glasses, the temperature of the blackbody radiation will
not change at all.
At 5778K the spectrum will peak at the wavelength 0.5 μm which
is in the green part of the spectrum, about in the middle of
the visible part of the spectrum. That means that the light will
consist of all colours in the rainbow, and will appear white
(when observed outside of Earth's atmosphere).
See the yellow spectrum:
https://www.sun.org/uploads/images/mainimage_BlackbodySpectrum_2.png
Observed from the Earth, much of the blue light will be scattered all over the sky (that's why the sky is blue), and since this blue light
comes from the sun, the solar disk will appear yellow rather than white.
--
Paul
https://paulba.no/