A search for radio counterparts of southern unidentified EGRET sources

Citation
Ja. Combi et al., A search for radio counterparts of southern unidentified EGRET sources, ASTRONOM J, 118(2), 1999, pp. 659-665
Citations number
38
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Space Sciences
Journal title
ASTRONOMICAL JOURNAL
ISSN journal
0004-6256 → ACNP
Volume
118
Issue
2
Year of publication
1999
Pages
659 - 665
Database
ISI
SICI code
0004-6256(199908)118:2<659:ASFRCO>2.0.ZU;2-O
Abstract
We present results of 1.42 GHz continuum and H I line observations of the e nvirons of the unidentified EGRET sources 3EG J0724-4713 and 3EG J0725-5140 . Using a filtering technique, we have eliminated from the radio continuum images the background diffuse radiation that originates in the Galactic dis k. This enables us to study the presence of weak radio sources within the l ikelihood contours of the gamma-ray detections. The H I line observations p rovide additional information about the structure of the interstellar mediu m in the line of sight to the sources, which is relevant in case of a Galac tic origin. We discuss the nature of the individual sources in the light of the results.