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SkyDisk

class gammapy.image.models.SkyDisk(lon_0, lat_0, r_0)

Bases: gammapy.image.models.SkySpatialModel

Constant radial disk model.

$$\begin{split}\phi(lon, lat) = \frac{1}{2 \pi (1 - \cos{r}) } \cdot \begin{cases} 1 & \text{for } \theta \leq r_0 \\ 0 & \text{for } \theta < r_0 \end{cases}\end{split}$$

where $\theta$ is the sky separation

Parameters:

lon_0 : Longitude

$lon_0$

lat_0 : Latitude

$lat_0$

r_0 : Angle

$r_0$

Methods Summary

__call__(lon, lat)	Call evaluate method
copy()	A deep copy.
evaluate(lon, lat, lon_0, lat_0, r_0)	Evaluate the model (static function).

Methods Documentation

__call__(lon, lat)

Call evaluate method

copy()

A deep copy.

static evaluate(lon, lat, lon_0, lat_0, r_0)

Evaluate the model (static function).