Table 2

Results of the automatic association procedure for each catalog used (see main text for details and selections applied).

Type Number of objects Total number of Number of HGPS sources
in HGPS region associations with at least 1 association
2FHL sources 44 31 29
3FGL sources 352 64 40

Supernova remnants 211 24 21
Pulsar wind nebulae 29 16 16
Composite remnants 42 21 20

Energetic pulsars 222 47 42

Extra associations 20

Notes. The second column lists the numbers of objects in the HGPS survey region for each catalog. The third column gives the total number of associations found. The last column gives the number of HGPS sources having at least one associated object of a given category. The difference between the two last columns is only large for 3FGL because 3FGL is the only counterpart catalog for which the source density is so high that many HGPS sources are associated with multiple 3FGL sources. Out of the 78 HGPS sources, only 11 are left without any association.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.