Astro

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List of Routines

• AETA_LAMBDA Calculate the conformal time to redshift z in a flat universe given omegam.
• ANGDIST Calculate angular diameter distance between zmin and zmax in a lambda cosmology
• ANGDIST_LAMBDA calculate angular diameter from zmin to zmax in flat lambda universe
• ASTR_STRUCT GNU General Public License for more details.
• CLOSE_MATCH_RADEC this will find close matches between 2 sets of points (ra1,dec1)
• CONVERT2RD Convert from x-y to ra and dec
• CONVERT2XY Convert from ra and dec to x-y
• COSMOLOGY__DEFINE Implements some common distance measurements in cosmology. Follows
• FINDABTHETA find the axis ratio and position angle of an object with
• FINDE Find the e1 and for a perfectly elliptal object with the
• LUMDIST calculate luminosity distance
• MOM2SEEING Take the adaptive moments of the psf and convert this a "seeing" value
• QU2E Convert Robert Luptons q and u shape parameters to ellipticity
• RADEC_MATCH
• RADECSTR Wrapper for radec. Returns string versions of ra and dec.
• RD2XY Compute an X and Y position given the RA and DEC and an astrometry
• SPHEREDIST Compute great circle distances and angles between sets of points.
• XY2RD Compute R.A. and Dec in degrees from X and Y and an astrometry structure