SourceCatalog2HWC

class gammapy.catalog.SourceCatalog2HWC(filename='$GAMMAPY_EXTRA/datasets/catalogs/2HWC.ecsv')

Bases: gammapy.catalog.SourceCatalog

HAWC 2HWC catalog.

One source is represented by SourceCatalogObject2HWC.

The data is from tables 2 and 3 in the paper [R11].

The catalog table contains 40 rows / sources. The paper mentions 39 sources e.g. in the abstract. The difference is due to Geminga, which was detected as two “sources” by the algorithm used to make the catalog, but then in the discussion considered as one source.

References

[R11]

(1, 2) Abeysekara et al, “The 2HWC HAWC Observatory Gamma Ray Catalog”, On ADS: 2017ApJ…843…40A

Attributes Summary

description	Catalog description
name	Catalog name
positions	SkyCoord

Methods Summary

copy()	Copy catalog
info()	Print info string.
row_index(name)	Look up row index of source by name.
select_image_region(image)	Select all source within an image
source_name(index)	Look up source name by row index.

Attributes Documentation

description = '2HWC catalog from the HAWC observatory'

Catalog description

name = '2hwc'

Catalog name

positions

SkyCoord

Methods Documentation

copy()

Copy catalog

info()

Print info string.

row_index(name)

Look up row index of source by name.

Parameters:

name : str

Source name

Returns:

index : int

Row index of source in table

select_image_region(image)

Select all source within an image

Parameters:

image : SkyImage

Sky image

Returns:

catalog : SourceCatalog

Source catalog selection.

source_name(index)

Look up source name by row index.

Parameters:

index : int

Row index of source in table