On the nature of the galactic population of 3EG sources

G. E. ROMERO; P. BENAGLIA; D. F. TORRES

Simposio; THE FIFTH COMPTON SYMPOSIUM; 1999

We present the results of a study on the possible association of unidentified gamma-ray sources in the 3EG Catalog with different types of galactic objects: Wolf-Rayet (WR) and Of stars, supernova remnants (SNRs), and OB star associations (considered as pulsar tracers). We have made simulations of large numbers of galactic populations of gamma-ray sources in order to weight the statistical significance of the positional coincidences. We have found that 6 EGRET detections are coincident with WR stars, 4 with Of stars, 22 with SNRs, and 26 with OB associations. The probability that all the SNR and OB coincidences were the pure effect of chance is negligible (