Examples for IGMSurvey (v1.2)¶
# imports
from astropy.coordinates import SkyCoord
from pyigm.abssys.igmsys import IGMSystem
from pyigm.abssys.igmsurvey import GenericIGMSurvey
Simple instantiation¶
gensurvey = GenericIGMSurvey()
gensurvey
[IGMSurvey: nsys=0, type=Generic, ref=]
coord = SkyCoord(ra=123.1143*u.deg, dec=-12.4321*u.deg)
gensys1 = IGMSystem('MgII', coord, 1.244, [-300,300.]*u.km/u.s, NHI=16.)
gensys1.name = 'Sys1'
#
coord2 = SkyCoord(ra=223.1143*u.deg, dec=42.4321*u.deg)
gensys2 = IGMSystem('MgII', coord2, 1.744, [-300,300.]*u.km/u.s, NHI=17.)
gensys2.name = 'Sys2'
gensurvey.add_abs_sys(gensys1)
gensurvey.add_abs_sys(gensys2)
gensurvey.abs_sys()
array([<IGMSystem: MgII 08:12:27.432 -12:25:55.56, 1.244, NHI=16, Z/H=0>,
<IGMSystem: MgII 14:52:27.432 42:25:55.56, 1.744, NHI=17, Z/H=0>], dtype=object)