HEALPix map shell redshiftsΒΆ
The HEALPix maps are constructed in a series of concentric shells around each observer. HEALPix maps are only output to a maximum redshift, which depends on the simulation box size.
Simulation box |
Number of shells |
Maximum redshift |
|---|---|---|
1Gpc boxes (observer 0) |
60 |
3.0 |
1Gpc boxes (observer 1) |
10 |
0.5 |
2.8Gpc boxes |
68 |
5.0 |
5.6Gpc box |
80 |
25.0 |
11.2Gpc box |
81 |
30.0 |
Each shell is defined by a minimum and maximum redshift, as shown below. All simulations use the same redshift shells except that shells beyond the maximum redshift are omitted.
Note
Not all of the FLAMINGO simulations use the same cosmological parameters, so the relation between redshift and comoving distance varies. If you need to translate between redshift, distance and time in the cosmology of a specific simulation, we recommend using swiftsimio.
Shell index |
Inner redshift |
Outer redshift |
|---|---|---|
0 |
0.001 |
0.050 |
1 |
0.050 |
0.100 |
2 |
0.100 |
0.150 |
3 |
0.150 |
0.200 |
4 |
0.200 |
0.250 |
5 |
0.250 |
0.300 |
6 |
0.300 |
0.350 |
7 |
0.350 |
0.400 |
8 |
0.400 |
0.450 |
9 |
0.450 |
0.500 |
10 |
0.500 |
0.550 |
11 |
0.550 |
0.600 |
12 |
0.600 |
0.650 |
13 |
0.650 |
0.700 |
14 |
0.700 |
0.750 |
15 |
0.750 |
0.800 |
16 |
0.800 |
0.850 |
17 |
0.850 |
0.900 |
18 |
0.900 |
0.950 |
19 |
0.950 |
1.000 |
20 |
1.000 |
1.050 |
21 |
1.050 |
1.100 |
22 |
1.100 |
1.150 |
23 |
1.150 |
1.200 |
24 |
1.200 |
1.250 |
25 |
1.250 |
1.300 |
26 |
1.300 |
1.350 |
27 |
1.350 |
1.400 |
28 |
1.400 |
1.450 |
29 |
1.450 |
1.500 |
30 |
1.500 |
1.550 |
31 |
1.550 |
1.600 |
32 |
1.600 |
1.650 |
33 |
1.650 |
1.700 |
34 |
1.700 |
1.750 |
35 |
1.750 |
1.800 |
36 |
1.800 |
1.850 |
37 |
1.850 |
1.900 |
38 |
1.900 |
1.950 |
39 |
1.950 |
2.000 |
40 |
2.000 |
2.050 |
41 |
2.050 |
2.100 |
42 |
2.100 |
2.150 |
43 |
2.150 |
2.200 |
44 |
2.200 |
2.250 |
45 |
2.250 |
2.300 |
46 |
2.300 |
2.350 |
47 |
2.350 |
2.400 |
48 |
2.400 |
2.450 |
49 |
2.450 |
2.500 |
50 |
2.500 |
2.550 |
51 |
2.550 |
2.600 |
52 |
2.600 |
2.650 |
53 |
2.650 |
2.700 |
54 |
2.700 |
2.750 |
55 |
2.750 |
2.800 |
56 |
2.800 |
2.850 |
57 |
2.850 |
2.900 |
58 |
2.900 |
2.950 |
59 |
2.950 |
3.000 |
60 |
3.000 |
3.250 |
61 |
3.250 |
3.500 |
62 |
3.500 |
3.750 |
63 |
3.750 |
4.000 |
64 |
4.000 |
4.250 |
65 |
4.250 |
4.500 |
66 |
4.500 |
4.750 |
67 |
4.750 |
5.000 |
68 |
5.000 |
5.500 |
69 |
5.500 |
6.040 |
70 |
6.040 |
6.630 |
71 |
6.630 |
7.260 |
72 |
7.260 |
7.950 |
73 |
7.950 |
8.700 |
74 |
8.700 |
9.510 |
75 |
9.510 |
10.380 |
76 |
10.380 |
12.260 |
77 |
12.260 |
15.000 |
78 |
15.000 |
20.000 |
79 |
20.000 |
25.000 |
80 |
25.000 |
30.000 |