jobovy

jobovy

jobovy

jobovy

license: mit

jobovy

jobovy

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jobovy

# The DF of a tidal stream peppered with impacts
import copy
import hashlib
import numpy
from scipy import integrate, special, stats, optimize, interpolate, signal
from galpy.df import streamdf, streamgapdf
from galpy.df.streamgapdf import _rotation_vy
from galpy.util import bovy_conversion, bovy_coords
class streampepperdf(streamdf):
    """The DF of a tidal stream peppered with impacts"""

jobovy

#Module to read and process the Koposov et al. (2010) data
import os
import numpy
from galpy.util import bovy_coords
_DATADIR='../data/'
# Koposov et al. (2010) transformation matrix
_TKOP= numpy.zeros((3,3))
_TKOP[0,:]= [-0.4776303088,-0.1738432154,0.8611897727]
_TKOP[1,:]= [0.510844589,-0.8524449229,0.111245042]
_TKOP[2,:]= [0.7147776536,0.4930681392,0.4959603976]

jobovy

These Python scripts can be used to reproduce the figures in Bovy & Tremaine (2012): On the local dark matter density.

Figure 1 is produced by:

python plot_dvcapprox.py

while Figure 2 is produced by:

python plot_sigmaz.py