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author | Aaron LI <aaronly.me@gmail.com> | 2016-05-28 09:55:23 +0800 |
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committer | Aaron LI <aaronly.me@gmail.com> | 2016-05-28 09:55:23 +0800 |
commit | 69b88a98a8d40e064993b316a36573e3a0ac0666 (patch) | |
tree | 6979679ae89f76358facaac2d3399253cc11286f /tools/cosmo_calc/calc_distance.h | |
parent | 441cd7bc16b16f4a0c5cf8bc364787236b474269 (diff) | |
download | chandra-acis-analysis-69b88a98a8d40e064993b316a36573e3a0ac0666.tar.bz2 |
Move tools/cosmo_calc to another repo 'atoolbox'
Diffstat (limited to 'tools/cosmo_calc/calc_distance.h')
-rw-r--r-- | tools/cosmo_calc/calc_distance.h | 59 |
1 files changed, 0 insertions, 59 deletions
diff --git a/tools/cosmo_calc/calc_distance.h b/tools/cosmo_calc/calc_distance.h deleted file mode 100644 index a1f3352..0000000 --- a/tools/cosmo_calc/calc_distance.h +++ /dev/null @@ -1,59 +0,0 @@ -// calc_distance.h -// calculate commonly used cosmology distances -// Ref: https://en.wikipedia.org/wiki/Distance_measures_(cosmology) -// -// Junhua Gu -// -// ChangeLogs: -// 2012/08/12, LIweitiaNux -// fix a bug in `calc_angular_distance()' -// add `calc_transcomv_distance()' and -// account `omega_k >0, <0' cases -// - -#ifndef CALC_DISTANCE_H -#define CALC_DISTANCE_H - -double cm=1.0; -double s=1.0; -double km=1000*100*cm; -double Mpc=3.08568e+24*cm; -double kpc=3.08568e+21*cm; -double yr=365.*24.*3600.*s; -double Gyr=1e9*yr; -double arcsec2arc_ratio=1./60/60/180*3.1415926; -double c=299792458.*100.*cm; - -// cosmology parameters -double H0=71.0; // units: [km/s/Mpc] -double omega_m=0.27; -double omega_l=0.73; -double omega_k=1.0-omega_m-omega_l; - -// precision to determine float number equality -double eps=1.0e-7; - -// open functions -// -// dimensionless Hubble parameter -extern double E(double z); -// Hubble distance -extern double calc_hubble_distance(void); -// calc `comoving distance' -extern double calc_comoving_distance(double z); -// calc `transverse comoving distance' -extern double calc_transcomv_distance(double z); -// calc `angular diameter distance' -// d_A(z) = d_M(z)/(1+z) -extern double calc_angdia_distance(double z); -// calc `luminoisity distance' -// d_L(z) = (1+z)*d_M(z) -extern double calc_luminosity_distance(double z); -// calc `light-travel distance' -// d_T(z) = d_H \int_0^z 1/((1+z)*E(z)) dz -extern double calc_ligtrav_distance(double z); - -#endif /* CALC_DISTANCE_H */ - -//EOF -/* vim: set ts=8 sw=4 tw=0 fenc=utf-8 ft=cpp: */ |