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authorAaron LI <aaronly.me@outlook.com>2017-02-20 09:15:35 +0800
committerAaron LI <aaronly.me@outlook.com>2017-02-20 09:15:35 +0800
commit79f878f1c578eb4c85563a6f36170e6527f71b3b (patch)
tree44485f043062b6dbc2dd2abc94f560880802c54d /acispy
parentcdc927778f0c61dcff7e566eec0d038737f8e526 (diff)
downloadchandra-acis-analysis-79f878f1c578eb4c85563a6f36170e6527f71b3b.tar.bz2
Add scripts/cosmo_calc.py
* This 'cosmo_calc.py' replaces the original C++ version 'cosmo_calc' * Also fix a issue in 'acispy/cosmo.py'
Diffstat (limited to 'acispy')
-rw-r--r--acispy/cosmo.py3
1 files changed, 2 insertions, 1 deletions
diff --git a/acispy/cosmo.py b/acispy/cosmo.py
index c3d6096..62b9191 100644
--- a/acispy/cosmo.py
+++ b/acispy/cosmo.py
@@ -57,7 +57,7 @@ class Calculator:
1 ACIS pixel (i.e., 0.492 arcsec) at the *angular diameter distance*
of z.
"""
- return self.kpc_per_pix * au.kpc.to(au.cm)
+ return self.kpc_per_pix(z) * au.kpc.to(au.cm)
def norm_apec(self, z):
"""
@@ -65,6 +65,7 @@ class Calculator:
EM = 1 (i.e., n_e = n_H = 1 cm^-3, and V = 1 cm^3)
norm = 1e-14 / (4*pi* (D_A * (1+z))^2) * int(n_e * n_H) dV
+ unit: [cm^-5]
This value will be used to calculate the cooling function values.