Unidentified 3EG gamma-ray sources at low galactic latitude

Details Unidentified 3EG gamma-ray sources at low galactic latitude Unidentified 3EG gamma-ray sources at low galactic latitude

1999-04-26

arxiv.org/abs/astro-ph/9904355v1

Astron.Astrophys.348:868,1999

Astronomy and Astrophysics

Astrophysics

A&A style, 3 eps figures

Scientific paper

We present a study on the possible association of unidentified $\gamma$-ray sources in the Third EGRET (3EG) catalog with different types of galactic objects such as Wolf-Rayet and Of stars, supernova remnants (SNRs), and OB associations (considered as pulsar tracers). We have made use of numerical simulations of galactic populations of $\gamma$-ray point sources in order to determine the statistical significance of the positional coincidences. New constraints on pure chance association are presented for SNRs and OB associations, and it is shown that massive stars present marginally significant correlation with 3EG sources at a $3\sigma$ level.

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