make_concentric_annulus_sky_regions#

gammapy.utils.regions.make_concentric_annulus_sky_regions(center, radius_max, radius_min=<Quantity 1.e-05 deg>, nbin=11)[source]#

Make a list of concentric annulus regions.

Parameters
centerSkyCoord

Center coordinate

radius_maxQuantity

Maximum radius.

radius_minQuantity

Minimum radius.

nbinint

Number of boxes along the line

Returns
regionslist of RectangleSkyRegion

Regions in which the profiles are made