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Hi Again,</div>
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Just to let you know, I changed my resolution from 3.2 (cell size) to 1.6 and the problem went away. I will now run the full simulation and see if I can match that paper's Figure 18.</div>
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Thanks, Tony...<br>
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<font size="2" face="Helvetica" color="#BB0000"><span style="font-size:9pt"><b>Anthony Shoup</b></span></font><font size="2" face="Helvetica" color="#333333"><span style="font-size:9pt">&nbsp;PhD, Senior Lecturer<br>
</span></font><font size="2" face="Helvetica" color="#BB0000"><span style="font-size:9pt">College of Arts &amp; Sciences, College of Engineering</span></font><font size="2" face="Helvetica" color="#333333"><span style="font-size:9pt">&nbsp;Departments of Physics, Astronomy,
 EEIC<br>
</span></font><font size="2" face="Helvetica" color="#333333"><span style="font-size:9pt">315 Science Bldg. | 4250 Campus Dr. Lima, OH 45807<br>
419-995-8018 Office | 419-516-2257 Mobile<br>
</span></font><a href="https://email.osu.edu/owa/redir.aspx?C=j5WpnJiBk0W5oVlCbtvB-xiCkA_lbdEIi9hlk7ByHiG7ARrxjwDFmAW8S_XespJbMLJRblY5JKc.&amp;URL=mailto%3ashoup.31%40osu.edu" target="_blank" style="font-family:Calibri; font-size:15px"><font size="2" face="Helvetica" color="blue"><span style="font-size:9pt"><b><u>shoup.31@osu.edu</u></b></span></font></a><font size="2" face="Helvetica" color="#333333"><span style="font-size:9pt">&nbsp;</span></font><a href="https://email.osu.edu/owa/redir.aspx?C=j5WpnJiBk0W5oVlCbtvB-xiCkA_lbdEIi9hlk7ByHiG7ARrxjwDFmAW8S_XespJbMLJRblY5JKc.&amp;URL=http%3a%2f%2fosu.edu" target="_blank" style="font-family:Calibri; font-size:15px"><font size="2" face="Helvetica" color="blue"><span style="font-size:9pt"><b><u>osu.edu</u></b></span></font></a></div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> users-bounces@einsteintoolkit.org &lt;users-bounces@einsteintoolkit.org&gt; on behalf of Shoup, Anthony &lt;shoup.31@osu.edu&gt;<br>
<b>Sent:</b> Friday, March 15, 2019 10:01 PM<br>
<b>To:</b> Einstein Toolkit Users<br>
<b>Subject:</b> [Users] Conservative to primative conversion fails in TOV collapse</font>
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Hi All,</div>
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I have been working on reproducing the results in the paper:</div>
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<span>The Einstein Toolkit: A Community Computational<br>
</span><span>Infrastructure for Relativistic Astrophysics</span>&nbsp; (arXiv: 1111.3344v1 {gr-qc] 14 Nov 2011)</div>
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and others as a way to teach myself how to use the Einstein Toolkit and to test out my home-built cluster computer.</div>
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I am currently working on the non-rotating TOV neutron star collapse into a BH.&nbsp; It works well up until it fails trying to convert conserved variables into primitive variables in grhydro (see attached tovCollapse.out file).&nbsp; I have tried adjusting the atmosphere
 parameters (specifically <span>GRHydro::rho_abs_min&nbsp; = 1.e-8, up from 1.e-10).</span>, as per the suggestions in the grhydro documentation, which has helped, but I think the conversion is failing now very near where the AH will/is forming.</div>
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I have included my parameter file for the simulation (I lowered evolve K from 98 to 80 just to accelerate the collapse process).</div>
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Any help anyone can give would be greatly appreciated.</div>
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Sincerely, Tony...<br>
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<font size="2" face="Helvetica" color="#BB0000"><span style="font-size:9pt"><b>Anthony Shoup</b></span></font><font size="2" face="Helvetica" color="#333333"><span style="font-size:9pt">&nbsp;PhD, Senior Lecturer<br>
</span></font><font size="2" face="Helvetica" color="#BB0000"><span style="font-size:9pt">College of Arts &amp; Sciences, College of Engineering</span></font><font size="2" face="Helvetica" color="#333333"><span style="font-size:9pt">&nbsp;Departments of Physics, Astronomy,
 EEIC<br>
</span></font><font size="2" face="Helvetica" color="#333333"><span style="font-size:9pt">315 Science Bldg. | 4250 Campus Dr. Lima, OH 45807<br>
419-995-8018 Office | 419-516-2257 Mobile<br>
</span></font><a href="https://email.osu.edu/owa/redir.aspx?C=j5WpnJiBk0W5oVlCbtvB-xiCkA_lbdEIi9hlk7ByHiG7ARrxjwDFmAW8S_XespJbMLJRblY5JKc.&amp;URL=mailto%3ashoup.31%40osu.edu" target="_blank" style="font-family:Calibri; font-size:15px"><font size="2" face="Helvetica" color="blue"><span style="font-size:9pt"><b><u>shoup.31@osu.edu</u></b></span></font></a><font size="2" face="Helvetica" color="#333333"><span style="font-size:9pt">&nbsp;</span></font><a href="https://email.osu.edu/owa/redir.aspx?C=j5WpnJiBk0W5oVlCbtvB-xiCkA_lbdEIi9hlk7ByHiG7ARrxjwDFmAW8S_XespJbMLJRblY5JKc.&amp;URL=http%3a%2f%2fosu.edu" target="_blank" style="font-family:Calibri; font-size:15px"><font size="2" face="Helvetica" color="blue"><span style="font-size:9pt"><b><u>osu.edu</u></b></span></font></a></div>
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