Source code for jetset.frame_converter
__author__ = "Andrea Tramacere"
import numpy as np
from .utils import *
__all__=['convert_nu_to_blob','convert_nu_to_src','convert_nuFnu_to_nuLnu_src']
[docs]
def convert_nu_to_blob(nu,in_frame,delta,z):
"""converts Energies/frequencies from in_frame to blob rest frame
Args:
delta: beaming factor
z: redshift
in_frame: startign reference frame, obs=observer (earth), src=corrected for redshift, blob=corrected for redshift and beaming
Returns:
E/nu in blob rest frame
"""
check_frame(frame=in_frame)
if in_frame=="obs":
z_c=z
delta_c=delta
elif in_frame=="src":
z_c=0
delta_c=delta
elif in_frame=="blob":
delta_c=1
z_c=0
else:
unexpected_behaviour()
return nu*(1+z_c)/delta_c
[docs]
def convert_nu_to_src(nu,z,in_frame):
"""converts Energies/frequencies from in_frame to blob rest frame
Args:
delta: beaming factor
z: redshift
in_frame: startign reference frame, obs=observer (earth), src=corrected for redshift, blob=corrected for redshift and beaming
Returns:
E/nu in blob rest frame
"""
check_frame(in_frame)
if in_frame=="obs":
z_c=z
elif in_frame=="src":
z_c=0
else:
unexpected_behaviour()
return nu*(1+z_c)
[docs]
def convert_nuFnu_to_nuLnu_src(nuFnu,z,in_frame,dl):
"""Convert nu fnu to nu lnu src.
Parameters
----------
nuFnu : object
Frequency/energy control value for nu fnu.
z : object
Parameter controlling z.
in_frame : object
Parameter controlling in frame.
dl : object
Parameter controlling dl.
Returns
-------
object
Computed result.
"""
check_frame(in_frame)
if in_frame == "obs":
c=4.0*np.pi*dl**2
elif in_frame == "src":
c=1.0
else:
unexpected_behaviour()
return c*nuFnu
def convert_nuLnu_src_to_nuLnu_blob(nuLnu,beaming,in_frame):
"""Convert nu lnu src to nu lnu blob.
Parameters
----------
nuLnu : object
Frequency/energy control value for nu lnu.
beaming : object
Lower bound/control for beaming.
in_frame : object
Parameter controlling in frame.
Returns
-------
object
Computed result.
"""
check_frame(in_frame)
c=1/(beaming**4)
return c*nuLnu
def convert_nu_src_to_nu_blob(nu_src,beaming,in_frame):
"""Convert nu src to nu blob.
Parameters
----------
nu_src : object
Frequency/energy control value for nu src.
beaming : object
Lower bound/control for beaming.
in_frame : object
Parameter controlling in frame.
Returns
-------
object
Computed result.
"""
check_frame(in_frame)
return nu_src/beaming
