galpy.util.coords.galcencyl_to_XYZ¶
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galpy.util.coords.
galcencyl_to_XYZ
(R, phi, Z, Xsun=1.0, Zsun=0.0, _extra_rot=True)[source]¶ NAME:
galcencyl_to_XYZPURPOSE:
transform cylindrical Galactocentric coordinates to XYZ coordinates (wrt Sun)INPUT:
R, phi, Z - Galactocentric cylindrical coordinates
Xsun - cylindrical distance to the GC (can be array of same length as R)
Zsun - Sun’s height above the midplane (can be array of same length as R)
_extra_rot= (True) if True, perform an extra tiny rotation to align the Galactocentric coordinate frame with astropy’s definition
OUTPUT:
X,Y,ZHISTORY:
2011-02-23 - Written - Bovy (NYU)
2017-10-24 - Allowed Xsun/Zsun to be arrays - Bovy (UofT)