You are doing all this opening of data files and summing particle masses using yt?  Open each data file, get the delta(Mstar) and solve for the SFR using delta(t).  Does it match anything you are getting using the module?

On Tue, Mar 5, 2013 at 3:36 PM, Munier Azzam Salem <msalem@astro.columbia.edu> wrote:
Alright, I'll take a look.

But, I should emphasize that when I open each individual data file, sum the particle masses, and plot, the total mass increases monotonically over time, and agrees well with the decrease in gas mass. It's only when I analyze via the star formation module that I see the jump.


On Tue, Mar 5, 2013 at 3:34 PM, Stephen Skory <s@skory.us> wrote:
Hi Munier,

>      Here is the cumulative mass, plotted from the same three data files.
> It's clear particles are being lost ...

Aha! That is kind of what I was suspecting! So this looks like it
might be an Enzo problem. I'd recommend trying to figure out what
happened there. Perhaps there was an error during a restart or somehow
two different simulations got mixed up? Good luck!

--
Stephen Skory
s@skory.us
http://stephenskory.com/
510.621.3687 (google voice)
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Munier A. Salem // 845.489.6450

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