kevinmacastro / galaxy-assembly-bias-in-sdss-cmass Goto Github PK

On the constraints of galaxy assembly bias in velocity space

Kevin Spencer McCarthy, Zheng Zheng, Hong Guo, Wentao Luo, and Yen-Ting Lin

Summary

Clustering Measurement

• xi_su_tree.c (A C program to calculate the 2-point correlation function for a lightcone distribution of galaxies. Pair counts are performed with a tree structure, only computing pairs for galaxies in the current and neighboring cells to expedite computation.)
• fileprep_tree.py (A Python program to build a table that will localize a galaxy in a particular cell determine by transforming the galaxy coordinates from redshift-space to Cartesian and dividing up the (X,Y,Z)-space into cells/bins dependent on the clustering scales of interest.)