generate_table.py 2.47 KB
Newer Older
1
2
3
4
5
import pyfstat
import numpy as np

outdir = 'data'

6
label = 'allsky_setup'
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
data_label = '{}_data'.format(label)

# Properties of the GW data
sqrtSX = 2e-23
tstart = 1000000000
Tspan = 100*86400
tend = tstart + Tspan

# Fixed properties of the signal
F0_center = 30
F1_center = 1e-10
F2 = 0
tref = .5*(tstart+tend)


VF0 = VF1 = 100
DeltaF0 = VF0 * np.sqrt(3)/(np.pi*Tspan)
DeltaF1 = VF1 * np.sqrt(45/4.)/(np.pi*Tspan**2)

26
27
DeltaAlpha = 0.02
DeltaDelta = 0.02
28
29
30

depth = 100

31
32
33
34
35
36
37
nsteps = 50
run_setup = [((nsteps, 0), 20, False),
             ((nsteps, 0), 11, False),
             ((nsteps, 0), 6, False),
             ((nsteps, 0), 3, False),
             ((nsteps, nsteps), 1, False)]

38
h0 = sqrtSX / float(depth)
39
40
41
42
43
r = np.random.uniform(0, 1)
theta = np.random.uniform(0, 2*np.pi)
F0 = F0_center + 3*np.sqrt(r)*np.cos(theta)/(np.pi**2 * Tspan**2)
F1 = F1_center + 45*np.sqrt(r)*np.sin(theta)/(4*np.pi**2 * Tspan**4)

44
45
46
47
Alpha_center = 0
Delta_center = 0
Alpha = Alpha_center + np.random.uniform(-0.5, 0.5)*DeltaAlpha
Delta = Delta_center + np.random.uniform(-0.5, 0.5)*DeltaDelta
48

49
50
51
psi = np.random.uniform(-np.pi/4, np.pi/4)
phi = np.random.uniform(0, 2*np.pi)
cosi = np.random.uniform(-1, 1)
52
53
54
55
56
57
58
59
60
61

data = pyfstat.Writer(
    label=data_label, outdir=outdir, tref=tref,
    tstart=tstart, F0=F0, F1=F1, F2=F2, duration=Tspan, Alpha=Alpha,
    Delta=Delta, h0=h0, sqrtSX=sqrtSX, psi=psi, phi=phi, cosi=cosi,
    detector='H1,L1')
data.make_data()
predicted_twoF = data.predict_fstat()

theta_prior = {'F0': {'type': 'unif',
62
63
                      'lower': F0_center-DeltaF0,
                      'upper': F0_center+DeltaF0},
64
               'F1': {'type': 'unif',
65
66
                      'lower': F1_center-DeltaF1,
                      'upper': F1_center+DeltaF1},
67
68
               'F2': F2,
               'Alpha': {'type': 'unif',
69
70
                         'lower': Alpha_center-DeltaAlpha,
                         'upper': Alpha_center+DeltaAlpha},
71
               'Delta': {'type': 'unif',
72
73
                         'lower': Delta_center-DeltaDelta,
                         'upper': Delta_center+DeltaDelta},
74
75
               }

76
ntemps = 2
77
78
79
80
81
82
83
84
log10temperature_min = -1
nwalkers = 100

mcmc = pyfstat.MCMCFollowUpSearch(
    label=label, outdir=outdir,
    sftfilepath='{}/*{}*sft'.format(outdir, data_label),
    theta_prior=theta_prior,
    tref=tref, minStartTime=tstart, maxStartTime=tend,
85
    nwalkers=nwalkers, ntemps=ntemps, nsteps=[nsteps, nsteps]
86
    log10temperature_min=log10temperature_min)
87
88
#mcmc.run(Nsegs0=20, R=10)
mcmc.run(run_setup)