<div dir="ltr">Hi Beyhan,<div><br></div><div>As there are many subtleties to measuring angular momentum in GR, email is a very inefficient means to communicate. If you'd like to, I would be willing to try and address your question over a Google Hangout. </div><div><br clear="all"><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div style="font-size:12.8px">-Zach</div><div style="font-size:12.8px"><br></div><span style="font-size:12.8px">* * *</span><br style="font-size:12.8px"><span style="font-size:12.8px">Prof. Zachariah Etienne</span></div><div dir="ltr">Physics & Astronomy Dept.<br style="font-size:12.8px"><div style="font-size:12.8px">West Virginia University</div><div><a href="http://astro.phys.wvu.edu/zetienne/" target="_blank">http://astro.phys.wvu.edu/zetienne/</a></div><div><a href="http://blackholesathome.net/" target="_blank">http://blackholesathome.net</a><a href="https://blackholesathome.net" style="font-size:12.8px" target="_blank"><br></a><br></div></div></div></div></div></div></div></div></div></div></div></div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Mar 4, 2020 at 11:22 AM Beyhan Karakaş <<a href="mailto:beyhannkarakas@gmail.com">beyhannkarakas@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>Dear to whom it may concern,</div><div><br></div><div> I am interested in determining the spin of the remnant which are resulted from binary neutron star (initially are in irrotational configuration) merger . How could the method to determine the final spin differ (if it does) in case of remnant is a black hole or a neutron star. For the former case, I suppose QuasiLocalMeasures parameter "begin_qlm_calculations_after" along with AHFinderDirect parameter "find_after_individual" should be set to the time/iteration that the black hole formed. If this is not the case, please clarify how could it be determined? In addition, is there a way to find the evolution of the spin and orbital eccentricity of the binary?</div><div><br></div><div>Best regards,<br></div><div><br></div><div>Beyhan.<br></div></div>
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