# Difference: StewartBoogertPhotometry20161021 (9 vs. 10)

#### Revision 1021 Oct 2016 - AnishaVadher

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 META TOPICPARENT name="StewartBoogertPhotometry2016"
-- LauraBevilacqua - 18 Oct 2016
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• Line of best fit: y = 15.76 + 0.73x
%BEGINLATEX% Mean number of effective photoelectrons : $$\nu = \nu_0 + \mu t.$$ Actual number of photoelectrons: $$n = n_0 + m,$$ where $n_0$ follows a Gaussian distribution and may come from electronic noise and $m$ follows a Poisson distribution as a function of $\mu t$. Error in $m \sigma_m$ come from $\sqrt{\mu t}$.
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Therefore the intercept of the $n_{peak}$ (the median) as a function of exposure time is $\mu$ and the intercept is $\nu_0$.
%ENDLATEX%

Aaron:

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