Observations of a highly polarized radio filament near the great annihilator 1E1740.7-2942

Details Observations of a highly polarized radio filament near the great annihilator 1E1740.7-2942 Observations of a highly polarized radio filament near the great annihilator 1E1740.7-2942

Mar 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...256..408r&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 256, no. 2, p. 408-414.

Astronomy and Astrophysics

Astrophysics

9

Annihilation Reactions, Nuclear Astrophysics, Polarized Radiation, Radio Jets (Astronomy), Radio Sources (Astronomy), X Ray Sources, Astronomical Spectroscopy, Black Holes (Astronomy), Galactic Nuclei, Neutron Stars, Positron Annihilation, Spaceborne Astronomy

Scientific paper

We report on 10.55 GHz observations of the area in the Galactic center where the EINSTEIN and hard X-ray source 1E1740.7-2942 is located, which has been recently identified by the SIGMA/GRANAT team as the electron/positron annihilation source. The most remarkable feature is a highly polarized 50 pc long radio filament with a flat spectrum running almost perpendicular to the Galactic plane terminating within 2 arcmin distance from the region of annihilation. We discuss the possibility of a common origin of both phenomena.

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