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Astrophysics Source Code Library

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Searching for codes credited to 'Tollerud, E. J.'

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Found 2 codes.

[ascl:2312.009] GravSphere: Jeans modeling code
Read, J. I.; Steger, P.; Walker, M. G.; Genina, A.; Frenk, C. S.; Cole, S.; Benítez-Llambay, A.; Ludlow, A. D.; Navarro, J. F.; Oman, K. A.; Robertson, A.; Collins, M. L. M.; Ibata, R. A.; Rich, R. M.; Martin, N. F.; Peñarrubia, J.; Chapman, S. C.; Tollerud, E. J.; Weisz, D. R.
The non-parametric Jeans code GravSphere models discrete data and can be used to model dark matter distributions in galaxies. It can also recover the density ρ(r) and velocity anisotropy β(r) of spherical stellar systems, assuming only that they are in a steady state. Real or mock data are prepared by using the included binulator.py code; the repository also includes many examples for exploring the GravSphere's capabilities.
[ascl:2203.013] PetroFit: Petrosian properties calculator and galaxy light profiles fitter
Geda, Robel; Crawford, Steven; Hunt, Lucas R.; Bershady, Matthew A.; Tollerud, Erik J.; Randriamampandry, Solohery M.
PetroFit calculates Petrosian properties, such as radii and concentration indices; it also fits galaxy light profiles. The package, built on Photutils (ascl:1609.011), includes tools for performing accurate photometry, segmentations, Petrosian properties, and fitting.