[time-nuts] Time of death-Again

[Jim Palfreyman]

At least with this method at any time you can always work out when t=0
is. With other events (eg supernova) you can't.

On Saturday, October 30, 2010, Hal Murray <hmurray at megapathdsl.net> wrote:
>
>> These pulsars have different rates.  Could one use the relative timing  of
>> two or three pulsars? that is, T=0 is when pulsar A, B, and C are
>> coincident.  (or is the "beat rate" between them too high to be useful)
>
> That's an interesting idea...  Thanks.
>
> Let's ignore the problem of communicating the agorithm to non-English
> speakers.
>
> I think there are two problem areas.  Basically, the data isn't integer.  One
> fuzzy area is the period.  The other is measuring an individual pulse.
>
>
> Suppose you have 2 pulsars that might line up several or many years ago.
> What does that mean?  Suppose you know the periods to N decimal places.  What
> does "line up" mean?  How close do they have to be?
>
> Suppose you only have to go back a few years until things line up.  Then the
> major problem is the uncertainty on an individual pulse.
>
> Suppose you have to go back a zillion years.  Now the fuzz on the period adds
> to the fuzz on measuring an individual pulse.
>
> Mumble.  I'm probably in way over my head at this point.
>
>
> --
> These are my opinions, not necessarily my employer's.  I hate spam.
>
>
>
>
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