Re: Main Sequence Stellar Mass Function?
- From: CharlesRCaplan@xxxxxxxxx
- Date: Mon, 27 Oct 2008 14:37:08 -0700 (PDT)
On Oct 25, 5:48 pm, Erik Max Francis <m...@xxxxxxxxxxx> wrote:
CharlesRCap...@xxxxxxxxx wrote:
The function does not match observed stellar counts exactly, but it's
close enough for government work.
What "counts" are you trying to reproduce? You ask about mass, but it
seems here you're talking about _distributions_ of masses.
Yes, distribution of masses. The Initial Mass Functions that I found
on the internet are solved for mass. They take mass and spit out the
size of the population. I needed a function that would take a random
number and spit out a mass. The above function does that. (Excepting I
found after some tests that base 10 works much better than base 2.35.)
Run the equation about ten million times, the distribution comes out
to well within an order of magnitude for most spectral classes which
was all I was trying for.
Really, it was so simple that I should have recognized it right away
but my math was so rusty that I didn't. The computer does the math, I
just supply the logic. Which unfortunately means that I need to grease
the rusty wheels in my head before the high school/college algebra
comes back to me on those rare occasions that I need it.
.
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- Main Sequence Stellar Mass Function?
- From: CharlesRCaplan
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- From: CharlesRCaplan
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