<div dir="ltr">Dear all,<div><br></div><div>I would like to get few clarification on <font face="monospace, monospace">yt.analysis_modules.halo_merger_tree.merger_tree.MergerTree()</font></div><div><br></div><div>1)<font face="monospace, monospace"> MergerTree() </font>has a parameter<font face="monospace, monospace"> halo_finder_threshold</font>. Does this something synonym to virial overdensity(like M<span><span style="font-size:115%;font-family:stixgeneral,stix-regular,"cambria math""><sub><span style="font-size:92%">200</span></sub></span> or R<span><span style="font-size:115%;font-family:stixgeneral,stix-regular,"cambria math""><sub><span style="font-size:92%">200</span></sub></span> </span></span>) ?<br>2)<font face="monospace, monospace"> FOF_link_length</font> parameter for <font face="monospace, monospace">halo_finder_function = FOFHaloFinder</font>.</div><div>The default value is 0.2. </div><div>My doubt is, 0.2 is in which unit ? Is it in code unit or Mpc ? </div><div><br></div><div>And also<font face="monospace, monospace"> halo_finder_function = HaloFinder</font> and <font face="monospace, monospace">halo_finder_function = FOFHaloFinder</font> are giving entirely different value for the <font face="monospace, monospace">Group<span style="white-space:pre"> </span>Mass</font> in the <font face="monospace, monospace">MergerHalo.out (</font><font face="arial, helvetica, sans-serif">a difference of </font><span style="font-family:arial,helvetica,sans-serif">more than </span><span style="font-family:arial,helvetica,sans-serif">one order of magnitude)</span></div><div><font face="arial, helvetica, sans-serif"><br></font></div><div><br></div><div>thank you.</div><div> </div><div><div><br></div>-- <br><div class="gmail_signature"><div dir="ltr">Reju Sam John</div></div>
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