Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005ap%26ss.297..335p&link_type=abstract
Astrophysics and Space Science, Volume 297, Issue 1-4, pp. 335-344
Astronomy and Astrophysics
Astrophysics
2
Stars: Neutron, Gamma Rays: Observations, X-Rays: General, Surveys, Catalogs
Scientific paper
Most counterparts of the identified low-latitude γ-ray sources are isolated neutron stars (INSs). Since INSs are characterized by an extremely high value of f X/f opt, a systematic X-ray/optical coverage of the fields of unidentified low-latitude γ-ray sources is the best way to unveil INS counterparts of unidentified sources. Since the low-latitude sources are heavily affected by the interstellar absorption in both the X-ray and optical bands, we decided to apply the above strategy to two middle-latitude EGRET sources, which could belong to a local galactic population: 3EG J0616-3310 and 3EG J1249-8330. Here we report on the global X-ray characterization of about 300 objects, on their candidate optical counterparts and on the preliminary results of their identification.
Bignami Giovanni F.
Caraveo Patrizia
Hatziminaoglou Evanthia
La Palombara Nicola
Mignani Roberto
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