X-ray iron-line emission from the SN 185 remnant

Astronomy and Astrophysics – Astronomy

Scientific paper

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Heao 1, Spaceborne Astronomy, Supernova Remnants, X Ray Sources, Iron, Line Spectra, Radio Sources (Astronomy), Temperature Measurement, Width

Scientific paper

Radio and optical research was carried out in order to show that the supernova remnant RCW86 is a remnant of the earliest supernova event ever recorded in history (185 AD). The results are as follows: (1) an iron-line emission was found at 6.7 keV; (2) the temperature measured from HEAO-1 was approximately 6 keV; and (3) the equivalent width was consistent within the uncertainties with a cosmic iron abundance. These results support the identification of the supernova remnant RCW86 (it's X-ray source) with the historic supernova event.

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