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Multifrequency studies of the enigmatic gamma-ray source 3EG J1835+5918

O. Reimer·K. T. S. Brazier·A. Carraminana·G. Kanbach·P. L. Nolan·D. J. Thompson
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Abstract

The EGRET telescope has repeatedly observed 3EG J1835+5918 as a bright and steady source of high-energy gamma-ray radiation which has not yet been indentified. EGRET data from CGRO observation cycle 1 to 7 have been reanalysed above 100 MeV and above 1 GeV. The gamma-ray source location represents the latest and probably final positional assessment based on EGRET data. We especially adress the question of flux variability and spectral variability. The results of a X-ray/optical identification campaign towards 3EG J1835+5918 are given. The one object which might be associated with the gamma-ray source 3EG J1835+5918 has the characteristics of an isolated neutron star and possible of a radio-quiet pulsar.

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O. Reimer, K. T. S. Brazier, A. Carraminana, G. Kanbach, P. L. Nolan, D. J. Thompson. 2001-02-09. Multifrequency studies of the enigmatic gamma-ray source 3EG J1835+5918. https://doi.org/10.1046/j.1365-8711.2001.04397.x

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