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-rw-r--r--fg21sim/extragalactic/clusters/main.py11
1 files changed, 5 insertions, 6 deletions
diff --git a/fg21sim/extragalactic/clusters/main.py b/fg21sim/extragalactic/clusters/main.py
index 7149f69..6b7cefa 100644
--- a/fg21sim/extragalactic/clusters/main.py
+++ b/fg21sim/extragalactic/clusters/main.py
@@ -127,11 +127,10 @@ class GalaxyClusters:
----
felong (elongated fraction) ::
Adopt a definition (felong = b/a) similar to the Hubble
- classification for the elliptical galaxies. As for the
- elliptical galaxies classification, E7 is the limit (e.g.,
- Wikipedia), therefore felong is also restricted within
- [0.3, 1.0], and sampled from a cut and absolute normal
- distribution centered at 1.0 with sigma ~0.7/3 (<= 3σ).
+ classification for the elliptical galaxies. Considering that
+ radio halos are generally regular, ``felong`` is thus restricted
+ within [0.6, 1.0], and sampled from a cut and absolute normal
+ distribution centered at 1.0 with sigma ~0.4/3 (<= 3σ).
"""
logger.info("Preliminary processes to the catalog ...")
num = len(self.catalog)
@@ -142,7 +141,7 @@ class GalaxyClusters:
"lon, lat : longitudes and latitudes [deg]")
logger.info("Added catalog columns: lon, lat.")
- felong_min = 0.3
+ felong_min = 0.6
sigma = (1.0 - felong_min) / 3.0
felong = 1.0 - np.abs(np.random.normal(scale=sigma, size=num))
felong[felong < felong_min] = felong_min