Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...319l..73s&link_type=abstract
Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 319, Aug. 15, 1987, p. L73-L76. Research supported
Astronomy and Astrophysics
Astronomy
22
Astronomical Maps, Bow Waves, Galactic Nuclei, Interstellar Magnetic Fields, Milky Way Galaxy, Radio Jets (Astronomy), Gas Density, High Resolution, Interstellar Gas, Morphology, Radio Sources (Astronomy), Thermal Emission
Scientific paper
Based on the recently accumulated observational facts on the radio features in the Galactic center, a shocked-jet model is proposed for the radio bridge that connects Sgr A and the radio arc. The bridge is interpreted as a tilted magnetized jet filled with a supersonic and shocked gas ejected from the Galactic nucleus. The jet is largely bent when it encounters an ambient poloidal magnetic field. A magnetic bow shock is formed ahead of the jet at the interaction surface with the ambient magnetic field and is observed as the radio arc. An internal shock wave occurring in the jet is observed as a jump in the gas density on the radio bridge.
Fujimoto Mitsuaki
Sofue Yoshiaki
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