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zhafen / linefinder

A tool for finding and classifying the worldlines of Lagrangian parcels of mass, in the context of hydrodynamic simulations of galaxy formation.
https://zhafen.github.io/linefinder
MIT License
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We still need to decide on a good definition for a galaxy #72

Closed zhafen closed 6 years ago

zhafen commented 6 years ago

Originally reported by Zachary Hafen (Bitbucket: zhafen, GitHub: zhafen)

There's reason to think that our definition for galaxy radius and the inner boundary of the CGM needs some work. The primary evidence for this are the two plots below...

stellar_radial_CDF_m12i_z0.png

This is the CDF of stars inside Rvir at z=0 in m12i.

stellar_radial_CDF_m12i_z4.png

This is the CDF of stars inside Rvir at z=4 in m12i.

One fiducial definition of the radius of the galaxy is shown as a vertical dashed line.

As you can see, at high-z the stellar distribution extends quite far out into Rvir, which messes with some of our definitions. We'll just need to make sure our final definitions match this.

zhafen commented 6 years ago

Original comment by Zachary Hafen (Bitbucket: zhafen, GitHub: zhafen)

We're going to get some science results out, and then come back and check this.

zhafen commented 6 years ago

This is done.