# SourceCatalog2HWC¶

class gammapy.catalog.SourceCatalog2HWC(filename='\$GAMMAPY_DATA/catalogs/2HWC.ecsv')[source]

HAWC 2HWC catalog.

One source is represented by SourceCatalogObject2HWC.

The data is from tables 2 and 3 in the paper [R765ffce297c8-1].

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

R765ffce297c8-1

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

Attributes Summary

 description Catalog description name Catalog name positions Source positions (SkyCoord).

Methods Summary

 row_index(self, name) Look up row index of source by name. source_name(self, index) Look up source name by row index.

Attributes Documentation

description = '2HWC catalog from the HAWC observatory'

Catalog description

name = '2hwc'

Catalog name

positions

Source positions (SkyCoord).

Methods Documentation

row_index(self, name)

Look up row index of source by name.

Parameters
namestr

Source name

Returns
indexint

Row index of source in table

source_name(self, index)

Look up source name by row index.

Parameters
indexint

Row index of source in table