Building Merger Trees with treefarm
Hi all, This is my first foray into doing halo finding / merger tree analysis so forgive me if I'm just missing something simple. My goal is to be able to identify a halo at lower-z that had specific properties at higher-z so I can get its lagrangian volume at lower-z to build a nested zoom. (And I'm assuming merger trees are the only / best way to identify the halo across snapshots for this). Anyway, I've been following the docs for yt_astro_analysis to build halo catalogs for a series of datasets and just tried the example in treefarm to build a merger tree, but I get an error. I'm using the last_yt3 changeset of yt, am on the master branch of treefarm, and halos were generated using rockstar-galaxies via master branch of yt_astro_analysis. And the datasets are DM-only Enzo runs. I get this error: http://paste.yt-project.org/show/256/ When running this (slightly modified from the example code): http://paste.yt-project.org/show/257/ Thanks for the help!! Best, Andrew --- Pasadena Fellow in Theoretical Astrophysics Carnegie Observatories California Institute of Technology
Hi Andrew,
I'm happy to help out with this. I have a number of possible solutions, so
I suggest we take this discussion to the #ytree channel on the yt slack.
Britton
On Fri, Jul 17, 2020 at 5:30 AM Andrew Emerick
Hi all,
This is my first foray into doing halo finding / merger tree analysis so forgive me if I'm just missing something simple. My goal is to be able to identify a halo at lower-z that had specific properties at higher-z so I can get its lagrangian volume at lower-z to build a nested zoom. (And I'm assuming merger trees are the only / best way to identify the halo across snapshots for this).
Anyway, I've been following the docs for yt_astro_analysis to build halo catalogs for a series of datasets and just tried the example in treefarm to build a merger tree, but I get an error. I'm using the last_yt3 changeset of yt, am on the master branch of treefarm, and halos were generated using rockstar-galaxies via master branch of yt_astro_analysis. And the datasets are DM-only Enzo runs.
I get this error: http://paste.yt-project.org/show/256/
When running this (slightly modified from the example code):
http://paste.yt-project.org/show/257/
Thanks for the help!!
Best, Andrew --- Pasadena Fellow in Theoretical Astrophysics Carnegie Observatories California Institute of Technology _______________________________________________ yt-users mailing list -- yt-users@python.org To unsubscribe send an email to yt-users-leave@python.org https://mail.python.org/mailman3/lists/yt-users.python.org/ Member address: brittonsmith@gmail.com
participants (2)
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Andrew Emerick
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Britton Smith